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Article

Inspiriting Innovation: The Effects of Leader-Member Exchange (LMX) on Innovative Behavior as Mediated by Mindfulness and Work Engagement

1
IDOCAL, University of Valencia, 46010 Valencia, Spain
2
IDOCAL, University of Valencia and IVIE, 46010 Valencia, Spain
3
Department of Psychology and Sociology, University of Zaragoza, 50009 Zaragoza, Spain
*
Author to whom correspondence should be addressed.
Sustainability 2021, 13(10), 5409; https://doi.org/10.3390/su13105409
Submission received: 25 March 2021 / Revised: 5 May 2021 / Accepted: 5 May 2021 / Published: 12 May 2021
(This article belongs to the Special Issue Sustainable Transformation and Innovation in Organization Management)

Abstract

:
Continuous innovation has become a key to gaining a sustainable competitive advantage for organizations in the 21st century. By focusing on the underlying mechanisms (i.e., mindfulness and work engagement) by which it works, this study addresses the quality of leader–member relationships and their relevance for innovation in the workplace. Using a sample of 210 employees from 17 Spanish companies, a two-wave longitudinal design evaluated the mediational roles of mindfulness and engagement between leader–member exchange (LMX) quality and innovative work behavior (IWB) in an organizational context. Over the course of a year, two questionnaires were administered to measure LMX quality, mindfulness, engagement, and IWB. Results from structural equation modeling provided support for the hypothesized double-mediation model with a significant full double mediation. Findings suggested that mindfulness and engagement could be characteristic mechanisms of high-quality LMX that helps to facilitate innovation. Practical implications include its creative value in gaining a competitive edge over market competitors and helping organizations to find a sustainable source for their consistent growth through their human capital and innovative potential.

1. Introduction

Continuous innovation has become a key to gaining a sustainable competitive advantage for organizations in the 21st century, set in the context of rapidly changing markets driven by constant technological advances [1,2,3,4]. The research field has already recognized the value of human capital and human relationships as some of the sources of innovation and competitive advantage across industries and countries [5,6,7,8]. Leadership has been attributed to leaders affecting behavioral changes among their employees in that leaders have the potential to inspire their employees to perform well and achieve organizational goals in competitive markets [9]. Mindfulness has become more salient in recent years and has been shown to increase market agility and strategic creativity [10,11]. Furthermore, mindfulness has been conceptualized as a strategy for sustainable competitive advantage, especially throughout the COVID-19 global pandemic [12]. Whereas there are numerous studies that link leadership (LMX) and innovation, only a few studies appeared recently linking LMX and innovation with mindfulness. Nevertheless, until now, research on innovation had not simultaneously included these variables as predictors of innovative behaviors, nor the relationships between leadership and mindfulness. By focusing on the underlying mechanisms (i.e., mindfulness and work engagement) by which it works, this study addresses the quality of leader–member relationships and their relevance for innovative behavior in the workplace.
Our study aims to integrate in the same study three relevant antecedents of innovative behaviors that had not yet been included in a single research study. In addition, it also aims to explain how high-quality relationships between employees and their supervisors lead to increased innovative behaviors. This study’s findings could contribute not only important theoretical developments to the fields of leadership, mindfulness, and innovation, but also practical implications to the (modern and innovative) workplace. To meet the ever-increasing innovation demands in the business market and workplace context, organizations could be assured that high-quality leadership relationships and mindfulness could facilitate engagement and innovation among their employees. They could integrate this knowledge into their organizational strategy to consistently maintain a competitive edge above their market competitors in the long run while maintaining the well-being of employees through work engagement.

2. Literature Review

The leader–member exchange (LMX) theory uses a relationship-based perspective of the leadership process. Based on role theory, LMX posits that leaders and followers undergo a role-making process in which differentiated roles result in various relationships ranging from high-quality socio-emotional to low-quality transactional [13,14]. The fundamental concept of the LMX theory is that the most effective leadership processes emerge when leaders and followers cultivate mature, high-quality relationships [15]. That is, this theory posits that effective leadership is realized through this dyadic relationship that is developed through a series of social exchanges of various tangible and intangible resources (e.g., leader: information, influence, desired tasks, decision latitude, support, and attention; member: task performance, commitment, loyalty, and citizenship behavior) [16].
Low-quality LMX, which was originally named “out-group relationships,” is based on the legal job contract and often implicates transactional leadership behaviors. On the other hand, high-quality LMX, which was originally named “in-group relationships,” transcends the formal employment contract and tends to include transformational leadership behaviors [16]. For instance, high-quality LMX relationships may include leaders providing followers with rich resources, such as support autonomy and decision-making latitude [17,18]. Meta-analyses have found that higher-quality LMX relationships are associated with better job performance [19] and extra-role performance, such as organizational citizenship behavior [20].
Previous research suggested relationships between LMX and innovative behavior. Leadership sets the critical psychological context to cultivate group climates of innovation. Organizational climate refers to the set of shared perceptions and descriptive beliefs of the work setting [16]. Leaders can be thought of as “climate engineers” [21] who play a key role in molding employees’ climate perceptions [22]. That is, leaders have the power to shape employees’ perceptions of support or other climate facets in the work environment. This leadership–climate relationship is supported by previous literature [23,24,25]. Leadership styles have also predicted innovation climate. Pons and Ramos [26] found that inspirational motivation and individualized consideration, two components of transformational leadership, were the first and third highest predictors of innovation climate. Further studies found an interaction effect between LMX quality and LMX differentiation on innovation climate [27] and found LMX to fully mediate the relationship between transformational leadership and organizational citizenship behaviors [28]. Just as organizational citizenship behaviors, innovative behaviors can be conceptualized as another type of extra-role performance [29,30].
Climate perceptions, established by leadership, have been antecedents of appropriately deemed behavior [31]. An evidence-based model explained the way in which LMX affects climate perceptions and subsequent behaviors through a mediation relationship of leadership–climate–injury [32]. High-quality relationships (i.e., high-quality LMX) increase the leader’s concern for her or his members’ welfare [33,34,35]. These high-quality relationships are reciprocal [36] and lead to a balanced social exchange [37] in which both parties support the goals of the other party, which facilitates mutual concern [38]. Transformational leadership, associated with high-quality LMX and more intimate and personalized relationships, which consist of a higher level of concern for group members’ welfare, promote supervisory safety practices [32]. This, in turn, creates higher safety climates, which leads to safer behavior, relationships supported by the integrative framework in which LMX quality would positively affect positive climate perceptions, cultivates climate strength, and facilitates similar perceptions among supervisors and subordinates [24]. To further support this framework, LMX quality, which can be defined as the level of within-group agreement of climate perceptions, has been associated with climate strength [22].
Previous research has empirically supported the positive predictive relationship between LMX on the individual dyadic level and innovation [39,40,41]. It should be noted that there is a difference between creativity and innovation. Creativity refers to “the production of novel and useful ideas in any domain,” whereas innovation includes “the successful implementation of creative ideas within an organization” [42] (p. 2). LMX has a historically positive relationship with creativity [43,44]. Multiple researchers have found LMX to predict creative work involvement [43,45]. However, it should be noted that the previous LMX–creativity correlations have been variable and the initial studies’ creativity operationalizations have not been consistent (i.e., no distinction between creativity and creative work involvement) [43].
With respect to the relationship between high-quality LMX and innovation, a meta- analysis found that LMX quality was positively related to creativity and innovative follower behavior [46]. Employee satisfaction with HR practices mediated the relationship between LMX and innovative behavior [40]. This relationship is logical since creative workplaces are characterized by their capacity to create intrinsic motivation within their employees so that they transcend extrinsic motivators (e.g., financial rewards, competition) [47]. That is, the predictive relationship between high-quality LMX and innovative behavior, which has been supported by previous literature, is rational. The leader possesses the ability to establish and influence places, processes, and relationships that inspirit innovation [48].
The relationships between LMX and mindfulness had recently gained interest from organizational researchers. The high-quality relationships set forth by LMX create the necessary context to facilitate mindfulness within the workers [49] (p. 729). One study proposed a mediational model between leader mindfulness (predictor), LMX quality (mediator), and employee performance (criterion), seeking to close the research gap to establish a predictive link between LMX quality and employee (i.e., member/follower) mindfulness [50].
Mindfulness has become an increasingly popular tool in the organizational setting [51]. There are two main streams of mindfulness research led by Kabat-Zinn and his colleagues, as well as Langer and her associates [52]. Kabat-Zinn’s conceptualization was termed as “meditative-mindfulness” and Langer’s scholarly approach was termed as “creative-mindfulness.” Whereas Kabat-Zinn highlighted mindfulness’ meta-cognitive aspects (i.e., acceptance, non-striving/non-judgmental), Langer emphasized mindfulness’ awareness of external surroundings and inventive aspects that form the basis of creativity [52].
Meditative-mindfulness, drawing from ancient Buddhist tradition, approaches mindfulness as present-moment nonjudgmental awareness [53]. On the other hand, creative-mindfulness views mindfulness as a flexible state of mind that is engaged in the present and its surroundings with four main components: engagement, seeking novelty, novelty producing, and flexibility [54,55]. Langer advanced the idea that mindfulness and creativity are naturally partners, as the principal characteristic of mindfulness—openness to novel ideas—initiates key cognitive processes for creativity (e.g., divergent and convergent thinking, flexibility, and ideational productivity) [56]. High-quality relationships between leaders and members stimulates a work context where non-judgments and secure climate for expressing opinions or developing new work procedures by employees are ensured. In addition, these leadership relationships provide workers with the required resources to allow reflectiveness and openness to novel ideas about tasks and goals. The immersion of tasks and the full awareness that characterizes mindfulness require a certain level of confidence and support from leadership.
In addition, mindfulness facilitates engagement and innovative behaviors. One of mindfulness’ main components—decreased discursive thought—enables the individual to experientially be present in the current moment without any language [57]. Language establishes a rigid and evaluative mode of mental processes that crystalizes thought and compromises the cognitive flexibility that facilitates making “the creative leap” [58], aligning with previous findings that verbalizing problem-solving strategies impaired performance on creativity questions [59]. A multilevel meta-analysis found a significant correlation between mindfulness and creativity [60]. A study with two field experiments provided evidence of a relationship between mindfulness, creativity, and perceived competence [61]. A series of four studies found that one particular mindfulness skill—observing and attending to multiple stimuli—consistently positively predicted creative performance [62]. Another study found that a five-week mindfulness training positively impacted creativity over time [63]. That is, mindfulness’ attention-regulation capacities are significant for the creative process through the power to broaden attention and integrate more information [64]. Moreover, mindfulness has the ability to focus and immerse employees in their tasks, which in turn allows them to uncover novelties in their work activity [65]. This study uses this foundational link with creativity to further close the gap in the mindfulness–innovative behavior line of research.
Another main component of mindfulness—attention regulation—enables the individual to control focus level and attention breadth in order to optimize goal-directed behavior [66]. This allows more mindful employees to more effectively engage in complex cognitive tasks [67].
Mindfulness has predicted work engagement, as mediated by authentic functioning [65]. Engagement can be conceptualized as full attention on tasks [68,69] and as “a positive, fulfilling, work-related state of mind that is characterized by vigor, dedication, and absorption” [70] (p. 74). Moreover, other underlying mechanisms (i.e., positive job-related affect and psychological capital) through which mindfulness positively predicts work engagement were identified [71]. Through a mindfulness-based intervention called Mindfulness in Motion, delivered to employees working in intensive care units, a chronically high-stress work environment, the intervention group’s work engagement significantly increased after their eight-week series of sessions [72]. Moreover, in a recent meta-analysis of randomized controlled trials, mindfulness-based programs not only significantly improved employee mindfulness, but also significantly increased work engagement [73]. Mindfulness could be seen as a cognitive resource that contributes to increasing employee control over job demands. Following the job demands-resources model, mindful strategies increase work engagement and other positive work outcomes [74].
Engagement is not only predicted by mindfulness, but also by LMX. Initially, a positive relationship between LMX quality and work engagement was found [75]. Further tests of the relationship between the two constructs found that LMX positively predicted employee job performance through work engagement [76]. That is, the mediation relationship between LMX and work engagement in predicting employee performance has already been established. In addition, a multilevel structural equation model concluded that high-quality LMX offered a more resourceful workplace environment, which consequently positively predicted follower job performance, as mediated by job resources and work engagement [77]. This study established the double-mediation relationship between LMX as an independent variable and work engagement as the second mediator.
Moreover, in support of this positive predictive relationship between LMX and engagement, as well as engagement’s mediating role in an extra-role performance outcome (e.g., innovative work behavior), a polynomial regression analysis of 280 dyads of leaders and subordinates found that LMX agreement between the two parties maximized work engagement and subsequent extra-role behavior [78]. High-quality leadership provides employees with resources that stimulates vigor, dedication, and absorption through the support from leaders and reciprocity of employees.
Finally, work engagement stimulates innovative behavior. High-quality LMX and high levels of mindfulness could be considered job resources to facilitate employee innovative behavior via engagement [79]. Using the job demands-resources model perspective, job resources have predicted extra-role performance through engagement [74]. A three-year longitudinal study found that job resources led to work engagement and work engagement led to personal initiative. Subsequently, personal initiative had a positive effect of work-unit innovativeness over time [80]. One study found that work engagement was one of the two mediators between transformational leadership and innovative work behavior [81]. Another study offered concrete evidence with their finding that work engagement mediated the relationship between LMX and innovative work behavior [82]. This paper fills a research gap by incorporating mindfulness into this LMX–work engagement–innovative work behavior model, conceptualizing both mindfulness and work engagement as personal job resources that facilitate positive work outcomes.
In sum, the previously established predictive relationships between LMX and mindfulness, work engagement, and innovative work behavior, in addition to the predictive relationships between mindfulness and engagement and creative performance, form the basis of this study’s hypothesized double-mediation model. Although there has been previous empirical support for the predictive nature of the relationships between these constructs, there is no one theory that can explain all of these inter-variable relationships. Only the job demands-resources model [74] had provided support for the relationship between job resources (i.e., mindfulness, as well as high-quality relationships, considered resources at work) and work engagement and performance (i.e., innovative behaviors). There still exists a gap in the literature that fails to connect all of these variables.
The present study investigates the relationship quality between leader and follower, as well as its ability to create a mindful space that promotes present-moment awareness and engagement, stimulating employees to focus on tasks, reflectiveness, and non-judgments and providing resources that facilitate engagement. In turn, mindfulness and engagement facilitate creativity and innovation. The purpose of this study is to examine leader–member exchange’s (LMX) effects on innovative behavior mediated through mindfulness and engagement. That is, it is expected that workers with a higher-quality LMX, who are more mindful, will be more supported and engaged in their jobs, as demonstrated by their higher levels of innovation.
The main research questions ask: (1) Does mindfulness mediate the relationship between leader–member exchange and innovative behavior? (2) Does work engagement mediate the relationship between leader–member exchange, mindfulness, and innovative behavior?
The hypotheses (Figure 1) posit that the quality of leader–member exchange affects innovative behavior through a serial mediation with mindfulness and engagement:
Hypothesis 1 (H1).
There is a significant indirect effect of LMX, through mindfulness at T2, on innovative work behavior at T2.
Hypothesis 2 (H2).
There is a significant indirect effect of LMX, through work engagement at T2, on innovative work behavior at T2.
Hypothesis 3 (H3).
There is a significant indirect effect of LMX, through mindfulness at T2 and work engagement at T2, on innovative work behavior at T2.

3. Materials and Methods

3.1. Participants

Using a between-subjects, two-wave longitudinal design with two data collections periods (T1: January–July 2014 and T2: 6 months later in July 2014–January 2015), the present study sampled 371 employees from 17 Spanish organizations from a variety of sectors, such as health services (i.e., public hospitals), education (i.e., public primary and middle schools), manufacturing (i.e., private e-health device companies), and the agro-food sector (i.e., private food-industry companies). Thirty companies were solicited from a list of companies in the Aragón region in Spain. The company response rate was 56.7%.
All participation was voluntary without compensation as outlined in the informed consent at the beginning of the survey. The participants completed an anonymous pen-and-paper survey with a unique subject ID identifier. They were allowed to complete surveys during work hours or outside of the office after work hours. The employees completed all four scales at both T1 and T2. A period between four and six months between both data collections was decided to allow some time variation on the study variables, without reducing rotation of workforce. This time delay allowed lagged effects of antecedents on innovation behaviors to be captured. It should be noted that all measures (original versions in English) were translated into Spanish. Then, two bilingual (Spanish-English) speakers tested the equivalence of all items in both languages—rewording items as necessary. Participants answered demographic questions at the end of the questionnaire after the four main scales.
In T1, 124 of the participants were male (33.4%), 198 were female (53.4%), and 49 did not specify their gender (13.2%). In T2, 86 participants were male (34.1%), 165 were women (65.5%), and 1 did not specify their gender (0.4%). Due to the 25% attrition rate between the two data collections, T2 included 252 employees.
All participants who did not complete all of the variables for each time period were deleted from the database. However, two participants who did not have data for LMX at T2 were included in the final database. That is, in the analyses, the final sample size included 210 employees who responded at both T1 and T2 (i.e., N = 210). After the data cleaning, there were 63 male (30%), 116 female (55.2%), and 31 participants without a specified gender (14.8%). The ages ranged from 22 to 62 (M = 41.49; SD = 10.61), and job tenure ranged from 0 to 36 years (M = 8.67; SD = 7.81).

3.2. Measures

Leader–Member Exchange (LMX). LMX quality between the employees and their supervisors was operationalized through a 7-item Leader–Member Exchange (LMX-7) [83]. The LMX-7 is the most commonly used measure of leadership relation quality [84] and also the strongest LMX scale psychometrically [19]. Participants rated their level of agreement with each of the items with a 7-point Likert scale ranging from “To a Very Low Degree” (1) to “To a Very High Degree” (7). An example item included, “My supervisor would be personally inclined to help me solve problems in my work.” All item scores were summed and averaged for a final scale score. Higher scores indicated higher-quality LMX. The Cronbach’s alpha was 0.96 for both T1 and T2.
Mindfulness. The reduced 5-item State-Mindfulness Attention Awareness Scale (MAAS) assessed individual mindfulness levels among the employees, which included the items that explained the most scale variance [85]. This scale has demonstrated high reliability and strong convergent validity with trait mindfulness, as assessed by the 15-item MAAS [85,86]. Instructed to think about their specific experiences in the workplace, subjects rated their levels of agreement using a 6-point Likert scale ranging from “Almost Never” (1) to “Almost Always” (6). A sample item was, “I do jobs or tasks automatically, without being aware of what I am doing.” All item scores were summed and averaged for a final scale score. It should be noted that scores were reverse coded so that higher scores indicated higher levels of mindfulness. The Cronbach’s alpha was 0.78 for T1 and 0.79 for T2.
Work Engagement. A reduced 13-item version of the 17-item Utrecht Work Engagement Scale (UWES) operationalized engagement with three sub-dimensions: vigor, dedication, and absorption [87]. In addition to its typically high internal consistencies in past investigations (0.80–0.90), the UWES has been validated across various samples from a range of countries, including China, Japan, Argentina, France, Finland, the Netherlands, Belgium/Flanders, and Spain [88,89,90,91,92]. Thus, it has been used as an unbiased instrument across racial groups [87]. Participants rated the level of frequency that they had experienced the various statements on a 7-point Likert scale ranging from “Never” (1) to “Always” (7). An example item was, “I can continue working for very long periods at a time.” All item scores were summed and averaged for a final scale score. Higher scores indicated higher levels of engagement. The Cronbach’s alpha was 0.89 for T1 and 0.90 for T2.
Although 13 items were collected, the analysis included the eight items from the vigor and dedication subscales. The absorption subscale was the most recent subscale to be added to the original two subscales [70]. Nevertheless, the crucial items of UWES were vigor and dedication. Absorption was not a unique dimension of engagement that loaded onto the latent workaholism factor in addition to the latent work engagement factor [93]. Other researchers also found the two- factor model to be superior to the one-factor and three-factor models, in which vigor and dedication loaded onto one factor and absorption loaded onto the second factor [91]. A further item response modeling analysis supported a unidimensional interpretation over a multidimensional interpretation and a single global score, since strong factor correlations would offer little incremental predictive value [94]. The Cronbach’s alpha for the 8-item version was 0.87 for both T1 and T2.
Innovative Work Behavior (IWB). A 9-item scale for innovative behavior operationalized innovative work behavior [95], based on 41. Employee ratings and supervisor ratings of the employees’ innovative behavior were significantly correlated (r = 0.35, p < 0.001), supporting the validity of this measure [96]. A significant correlation between a similar innovative work behavior scale (supervisor-rated) and an objective measure of invention disclosures from the company’s archives was found (r = 0.33, p < 0.001) [41]. Participants rated their level of frequency of performing the activity with a 7-point Likert scale ranging from “Never” (1) to “Always” (7). Three items referred to idea generation (e.g., “Creating new ideas for difficult issues”), three to idea promotion (e.g., “Mobilizing support for innovative ideas”), and three to idea realization (e.g., “Transforming innovative ideas into useful applications”). All item scores were summed and averaged for a final scale score. Higher scores indicated higher levels of innovative work behavior. The Cronbach’s alpha was 0.94 for T1 and 0.95 for T2.

3.3. Procedure

Following Bennett’s recommendation [97], the amount of missing data (i.e., 63 item non-responses among 38 participants) was less than 10% of the data; thus, a multiple imputation approach was used by replacing the scale items with the individual’s particular scale mean (i.e., person mean substitution or valid mean substitution).
Reliability and correlational analyses were conducted using SPSS (version 24). In order to conduct the confirmatory factor analysis and test the double mediation posited by Hypotheses 1–3, the data were analyzed using structural equation modeling (SEM) with Mplus 7.3. SEM with latent variables tested the three hypotheses of the study. LMX at T1 was the independent variable, mindfulness at T2 was the first mediator, work engagement at T2 was the second mediator, and innovative work behavior at T2 was the dependent variable. The baseline of the dependent variable was controlled for using innovative work behavior at T1. The statistical significance of the three indirect effects was evaluated based on a 95% confidence interval. If the 95% confidence interval did not include zero, the indirect effect was considered to be significant at the 0.05-level.

4. Results

Validity. A confirmatory factor analysis (CFA) was carried out on the 8 UWES items to ensure that a one-factor structure would fit the data well using the software Mplus 7.3. The estimation method was maximum likelihood (ML); the error covariance was freed between VIG02 and DED05. According to the CFA results, all fit indices demonstrated that the two-factor structure fit the data, except one: χ2(18, N = 210) = 56.53, p < 0.001; CFI = 0.95; TLI = 0.93; RMSEA = 0.10; SRMR = 0.05. It should be noted that it is possible that the model did not produce the ideal RMSEA value of less than 0.08 because this fit index is particularly sensitive to sample size (N = 210). The average standardized factor loading was 0.71, ranging from 0.45 to 0.86. Both vigor and dedication shared a high latent factor correlation of 0.85, which suggested that the two subscales measured extremely similar constructs. Additionally, the one-factor structure had similar results as the two-factor structure: (χ2(19, N = 210) = 60.57, p < 0.001; CFI = 0.95; TLI =.93; RMSEA = 0.10; SRMR = 0.04). The average standardized factor loading was 0.60, ranging from 0.33 to 0.79. Thus, the previously stated results and latent factor correlation supported the use of a unidimensional structure in the double-mediation model.
Relationship between LMX and Other Study Variables. Table 1 reports descriptive statistics and bivariate correlations between LMX quality and the other study variables. LMX quality at T1 significantly correlated positively with mindfulness (i.e., MAAS), work engagement (i.e., UWES), and IWB at both T1 and T2. Mindfulness at T2 shared significant positive correlations with all study variables at both T1 and T2. Work engagement at T2 significantly correlated positively with all study variables except mindfulness at T1.
Furthermore, IWB shared significant positive correlations with all study variables at both T1 and T2, except with mindfulness at T2. These correlations all provided promising initial support for the significance of the hypothesized double-mediation model.
Effect of LMX on IWB through Mindfulness and Work Engagement. To test the three hypotheses, a SEM analysis was conducted. The latent variables included LMX quality (i.e., LMX), mindfulness (i.e., MAAS), work engagement (i.e., UWES), and innovative work behavior (i.e., IWB). The SEM’s latent variables were built using a parceling technique [98]. The latent variables were created by using two parcels for each observed variable. Each parcel included half of the scale items. For instance, the LMX latent variable included four items in one parcel (i.e., LMX_A) and three items in the other parcel (i.e., LMX_B) from the LMX scale. The two UWES parcels were divided by their subscales: vigor and dedication.
After controlling for the baseline effects of the dependent variable at T2 (i.e., partial out the effects of IWB at T1 from IWB at T2), the results of the SEM analysis showed an acceptable model fit to the data: χ2(28, N = 210) = 92.13, p < 0.001; CFI = 0.95; TLI = 0.92; RMSEA = 0.10; SRMR = 0.10. Again, it should be noted that the model did not produce the ideal RMSEA and SRMR values of less than 0.08 due to those two fit indices’ sensitivity to sample size (N = 210). The standardized loadings, the R2 values, and their significance are included in the model presented in Figure 2.
All standardized loadings were significant at the 0.001 level, except the pathway from mindfulness to innovative work behavior (IWB) and from LMX to IWB (i.e., the direct effect). The first indirect effect of mindfulness on IWB was significant (B = 0.052, 95% CI (0.016, 0.088)), which led to the acceptance of Hypothesis 1. The second indirect effect of work engagement on IWB was also significant (B = 0.16, 95% CI (0.055, 0.27)), which led to the acceptance of Hypothesis 2. Furthermore, the third indirect effect of mindfulness and work engagement on IWB was significant (B = 0.027, 95% CI (0.004, 0.050)), which led to the acceptance of Hypothesis 3. Mindfulness mediated the effect of LMX on IWB. Work engagement mediated the effect of LMX on IWB. Additionally, LMX positively affected IWB through mindfulness and work engagement. With all three significant indirect effects, all three hypotheses were supported.
Due to the non-significant direct effect, the data suggested a full mediation of the effect of LMX on IWB through its two mediators, mindfulness and work engagement. That is, the effect of LMX on IWB was statistically fully explained through the serial mediation of mindfulness and work engagement.

5. Discussion

The aim of the present study was to evaluate the underlying mechanisms by which high quality leader–member exchange (LMX) affects innovative work behavior (IWB) and to establish an empirical link between LMX, mindfulness, work engagement, and IWB. Results of the current study suggest that high quality leader–member exchanges are positively related to IWB. After controlling for the effects of baseline scores of IWB at T2, high-quality LMX showed a positive effect on IWB. Moreover, the relationship was fully mediated by both mindfulness and work engagement. We postulate that high quality leader–follower relationships resulted in an increase in follower mindfulness, as well as an increase in follower work engagement, which in turn led to a subsequent increase in follower innovation behaviors in the workplace.
It should be noted that LMX did not have a significant effect on IWB, nor did mindfulness have a significant positive effect on IWB, even though it mediated the relationship between LMX and IWB. This is logical since the results suggest a full double mediation, which supports the originally proposed model of this study. Additionally, previous research already supports the LMX–creativity/innovation and the mindfulness–creativity/innovation relationship [99,100,101,102,103,104,105,106,107]. Thus, the non-significant direct effect (i.e., LMX–IWB) and non-significant effect of the first mediator on the dependent variable (i.e., mindfulness–IWB) does not signal a null relationship, but rather a complete explanation of the effect of LMX on IWB by the two mediators. This study highlights two mechanisms by which LMX positively affects IWB: mindfulness and work engagement. The findings reveal the mediating role of mindfulness between LMX and IWB, the mediating role of work engagement between LMX and IWB, and the double mediating role of mindfulness and work engagement between LMX and IWB. The results of this two-wave longitudinal study suggest that high-quality LMX has a positive effect on mindfulness, which is consistent with previous evidence that supports the association between mindfulness and LMX [108]. A possible explanation is that the mutual support, trust, and respect associated with high-quality leader–member exchanges set the adequate social and cognitive environment for employees to be aware of their external surroundings and to be open to novel ideas (i.e., demonstrate higher levels of mindfulness). Not only did LMX have a positive effect on mindfulness, but also a positive effect on IWB through mindfulness. Mindfulness’ mediating role between LMX and IWB is the first step in closing the gap in the literature that explains the effect of LMX on IWB through mindfulness. The results indicate that rich leader–follower relationships contribute to the follower’s elevated external awareness and openness to novelty, which in turn facilitates higher levels of innovation in the workplace.
The findings also reveal that mindfulness has a positive effect on work engagement. This expands the literature that only focused on mindfulness as a mediator between work engagement and IWB [78,101] and remains consistent with previous literature that established mindfulness’ relationship with work engagement [71,109,110,111]. That is, this positive effect further verifies mindfulness (e.g., follower awareness) as a key to the link between the leader–follower match and work engagement [111].
The results further show that high-quality LMX has a positive effect on work engagement, which is consistent with previous findings [112]. Moreover, the results reveal that work engagement has a positive effect on IWB, supporting prior empirical results [113,114]. A possible explanation of this relationship is that more engaged individuals are more likely to relate to and partake in innovation processes [113]. Additionally, LMX’s positive effect on IWB can be explained through work engagement. The mediating role of work engagement between LMX and IWB is congruent with previous studies that offered support for the same LMX–work engagement–IWB mediation pathway [82,115]. This emphasizes the crucial role leaders play in not only supporting their followers, but also nurturing work engagement.
The effects of high-quality LMX, including this study’s findings, support the long- standing notion that high-quality leader–follower relationships positively relate to follower creativity [116]. That is, employees who maintain high-quality relationships with their supervisors benefit from an enabling effect for innovation [116]. High-quality LMX fosters work environments with greater employee autonomy, support, and idea-generating behavior (i.e., information sharing) [117].
Perhaps employees with high-quality LMX relationships may be encouraged to feel comfortable enough to generate, promote, and realize creative ideas. Alternately, they may engage in more innovative behavior in order to reciprocate to their supervisor for the high-quality relationship [117]. This series of previously stated significant relationships advocates that high-quality leader–follower relationships (i.e., high-quality LMX) establish the social exchanges necessary to facilitate follower awareness and cognitive processes that cultivate creativity (i.e., mindfulness), which promotes an increased level of engagement in one’s work (i.e., work engagement) and fosters innovative behavior in the workplace (i.e., innovative work behavior). The theoretical value of this study lies in the original mixture and empirical connection between all four of these constructs in a single double-mediation model as their explanation of the process by which LMX quality affects innovative work behavior.
Practical Implications. This study’s findings not only contribute important theoretical developments to the fields of leadership, mindfulness, and innovation, but also practical implications for the (modern and innovative) workplace. The findings are particularly relevant for organizations with innovation integrated into their business strategy as a stable source of sustainable growth and competitive advantage. To meet the ever-increasing innovation demands in the business market and workplace context, organizations will be able to turn to high-quality leadership relationships and mindfulness in order to facilitate innovation and maintain a competitive edge in the long run. These findings could justify the investment in company-wide programs to increase the quality of supervisor–employee relationships, introduce mindfulness practices to organizational members ranging from upper management to frontline workers, and ensure work engagement among all workers. For instance, to more effectively set the context for employee mindfulness, mindfulness should be integrated into leadership development. Sanyal and Rigg offered suggestions on how to integrate mindfulness into leadership programs based on the results of their empirical study [118].
The sustainability of companies relies both on continuous innovation and the well-being of employees. In this sense, our results suggest that programs for developing high-quality LMX and stimulating mindfulness at work add value for the increase and maintenance of innovative behaviors as well as promoting employees’ well-being, at least in terms of work engagement. Thus, companies that introduce systematic actions to develop high-quality relationships and mindfulness could improve their innovation and health outcomes.

6. Conclusions

The results of the present study indicate that high-quality LMX is positively related to innovative behaviors through the serial mediation of mindfulness and work engagement. By relating these four distinct variables, this study makes enlightening contributions, both in theory, by closing literature gaps and offering evidence to further fortify previous empirical links, and in practice, by establishing key antecedents in the innovation process. This allows researchers and practitioners to better understand the importance of leader–follower relationships and the way in which they can inspirit innovative behavior in an organization to gain a strategic advantage over market competitors.
Limitations. This study presents a set of weaknesses. For instance, Langer’s 14-item Mindfulness/Mindlessness Scale [55], more oriented to creativity-related characteristics (i.e., four subscales: Novelty Seeking, Engagement, Novelty Producing, and Flexibility), was not used to assess individual trait mindfulness among the employees in order to evaluate the effect of mindfulness on innovative behaviors. This may seem like a contradiction between the investigation’s theoretical backbone and empirical operationalization. However, by using one of the most widely used trait mindfulness questionnaires (Mindful Attention Awareness Scale) [85], the study avoided including the second mediator (i.e., engagement) as a part of the first mediator’s (i.e., mindfulness) fundamental theoretical and operational definition.
Additionally, there was a single source of data included in the model (i.e., self-reported data). A meta-analysis with 88 independent samples from 86 empirical articles compared the research results of the two types of employee creativity, self-ratings, and non-self-report measures (i.e., supervisor ratings, peer ratings, and objective measures) [119]. The average age was 36 years old (SD = 8 years), and the average organizational tenure was eight years. This meta-analysis measured the effect sizes of the creativity measures with respect to various personal characteristics (e.g., positive affect, education level, and intrinsic motivation to work) and contextual factors (e.g., supervisor support, transformational leadership, and LMX quality). On the other hand, the difference in effect size of LMX quality on self-rated creativity and non-self-reported creativity was not statistically significant.
Even though no differences were found in the research results between self-reported creativity and non-self-reported creativity [119] and most of the empirical studies used a cross-sectional design, common method variance still posed a potential threat to single-source data [120]. Ng and Feldman cautioned researchers to pay special attention to the threat of common method variance with mediational effects, especially when participants complete the self-ratings of the variables simultaneously [119].
That is, the questionnaire respondents could experience an inescapable need to skew their ratings in order to maintain cognitive and/or attitudinal consistency in their responses. This is particularly common in cross-sectional studies. Thus, in order to avoid common method bias, consistency motif bias, and implicit theories, as well as to provide a richer source of data not subject to social desirability bias, supervisor ratings of the employees’ innovative behavior may provide richer and more accurate findings [119]. Nevertheless, by implementing a two-wave longitudinal design, this study followed one of the recommended remedies to address common method bias [120].
An additional potential weakness was the fact that the two mediators were not temporally separated from each other or from the dependent variable. An ideal longitudinal design for this double-mediation model would have been to have four data waves so that the independent variable, the two mediators, and the dependent variable were all collected in a specific time point. However, this two-time-point design offered a key advantage over a cross-sectional design in which the independent variable was temporally distinct from its mediators and the dependent variable.
This study does not include the specific leadership styles present in the various exchanges between employees and their supervisors. Thus, it should be noted that a leader who does not promote values and climates in alignment with mindfulness’ fundamental features will not effectively create an environment conducive to member/employee mindfulness. However, one study yielded results in support of leader mindfulness predicting transformational leadership behaviors [121]. This study ran additional analyses to estimate the correlations between leader mindfulness and six sub-dimensions of transformational leadership, which included innovation (r = 0.27, p < 0.05). That is, mindfulness at both the leader and the follower level may possess the potential to cultivate and inspirit innovation in the workplace. The use of innovative mindfulness was recommended [122], because the strategic leader not only acts as a top-down envisioning transformational leader, but also a bottom-up facilitating servant leader to facilitate innovative product differentiation. Furthermore, LMX mediated the relationship between transformational leadership and innovative behavior [105], which further supports the strong association between the specific transformational leadership style, high-quality LMX, and IWB.
Finally, it should be noted that LMX might not be the most effective leadership approach to use in the 21st century. A cross-generational study found that millennials preferred a distinct leadership style (i.e., participative leadership) to that of Generation X and baby boomers [123]. Other authors [124] noted that contemporary leadership theories, such as LMX, authentic leadership, and ethical leadership, may not appeal to the new millennial generation due to their increased individualism, decreased work centrality, increased focus on work–life balance, increased extrinsic motivation, and increased entitlement. For instance, the millennial workforce may not want to take the extra time required to engage in high-quality LMX, may be more interested in maintaining a healthy work–life balance than engaging in high-quality LMX, may be too focused on extrinsic reward to want to invest the necessary time to create and maintain high-quality LMX, and may be generally less interested in being led by a leader [124]. Thus, going forward, leaders should keep in mind the mindset of their followers/group members and adapt their leadership style to the distinct needs of the specific workforce.
Future Directions. Multi-level analysis at the team and leader levels would be one of the next steps to further test the generalizability of this double-mediation model. A previous study [50] already found that LMX quality mediates the relationship between leader mindfulness and employee in- and extra-role performance. In the same vein, the concept of team mindfulness and its relationship with conflict transformation and social undermining was introduced in a three-wave study [125]. Furthermore, possible interventions could address high-quality LMX and mindfulness, such as a supervisor–supervisee mindfulness-based program.
A mindfulness-based mentoring program enhanced team performance after conducting four follow-up assessments every three months after the end of the intervention [126]. Thus, testing for the model’s validity in the multi-level context of leadership and teams with respect to innovative behavior would not be an irrational investigative leap. Additionally, analyzing the three separate dimensions of innovation would be a way to further deepen our understanding of not only how LMX quality affects innovation, but also of what stage of innovation LMX quality particularly facilitates (e.g., idea generation, idea promotion, and idea realization).
A meta-analysis of LMX and culture across 23 countries found the relationship between LMX and organizational citizenship behavior to be stronger in horizontal–individualistic than vertical–collectivistic cultures [127]. The current study was conducted in Spain, a relatively more individualistic culture (i.e., more individualistic than Romania and China); thus, future studies should test the model’s generalizability to different (i.e., collectivistic) cultures [128]. For instance, Spain, with an individualism score of 51 and a percentage of 69.3 employees with a good relationship with their supervisor, differs from Romania, with a lower individualism score of 30 and a lower percentage of 65.4 employees with a good relationship with their supervisor [129,130].
Moreover, to expand the investigation’s scope beyond European borders, a comparative study in China, with an individualism score of 20, may also offer intriguing insights into the leadership, mindfulness, and innovation processes inter-continentally and cross-culturally.
The alignment between organizational climate and leadership style affects organizational financial performance [131,132]. One study [131] used an information-processing perspective with a focus on the CEO’s point of view, whereas another [132] incorporated charismatic, consideration, and initiating structure leadership into a leadership, organizational climate, store size, and financial performance model with a focus on the employees’ point of view. However, both studies found that leadership impacts climate, which in turn contributes to the organization’s performance. It would be insightful to include organizational performance variables as the next outcome step of the double-mediation model.
In sum, the present study found evidence about the effects of high-quality member relationships on innovative work behaviors. Leader–member exchange favors the use of the mindfulness of employees towards work, increasing work involvement and stimulating employees’ innovative behaviors. Thus, mindfulness (focusing on task improvements through reflectiveness and non-judgment) and engaging in tasks are mediation processes through which high-quality relations between leaders and team members stimulate organizational innovation. Improving leader–member relationships and the mindful orientation of employees to tasks contribute to the sustainability of organizations, as they increase employees’ well-being (i.e., work engagement) and innovation.

Author Contributions

Conceptualization, R.M., P.M., A.Z. and J.R.; methodology, R.M., P.M., A.Z. and J.R.; statistical analysis, R.M.; investigation, R.M., P.M., A.Z. and J.R. All authors have read and agreed to the published version of the manuscript.

Funding

This research received no external funding.

Institutional Review Board Statement

This study follows the guidelines of the Ethical Research Committee of the University of Valencia. Explicit approval for workplace surveys is not required.

Informed Consent Statement

Informed consent was obtained from all subjects involved in the study.

Data Availability Statement

Data available upon request to second author (J.R.).

Conflicts of Interest

The authors declare no conflict of interest.

Correction Statement

Due to an error in article production, several article preparation template sentences were included in the initial version of this publication. This information has been removed and the manuscript updated. This change does not affect the scientific content of the article.

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Figure 1. Hypothesized model: double-mediation model.
Figure 1. Hypothesized model: double-mediation model.
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Figure 2. Structural Equation Model with Latent Variables (* p < 0.05; *** p < 0.001).
Figure 2. Structural Equation Model with Latent Variables (* p < 0.05; *** p < 0.001).
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Table 1. Means, standard deviations, and correlations between study variables at T1 and T2.
Table 1. Means, standard deviations, and correlations between study variables at T1 and T2.
Variables M (SD) 1 2 3 4 5 6 7
1. LMX (T1) 5.09 (1.51)
2. MAAS (T1) 4.77 (0.84) 0.24 **
3. UWES (T1) 5.30 (0.96) 0.41 ** 0.28 **
4. IWB (T1) 4.18 (1.25) 0.19 ** 0.09 0.47 **
5. LMX (T2) 5.13 (1.41) 0.67 ** 0.15 * 0.31 ** 0.11
6. MAAS (T2) 4.73 (0.86) 0.24 ** 0.57 ** 0.27 ** 0.18 ** 0.21 **
7. UWES (T2) 5.21 (0.99) 0.26 ** 0.09 0.64 ** 0.38 ** 0.34 ** 0.28 **
8. IWB (T2) 4.27 (1.23) 0.18 ** 0.15 * 0.35 ** 0.55 ** 0.16 * 0.12 0.51 **
Note. M and SD are used to represent mean and standard deviation, respectively. * Indicates p < 0.05. ** Indicates p < 0.01.
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Mulligan, R.; Ramos, J.; Martín, P.; Zornoza, A. Inspiriting Innovation: The Effects of Leader-Member Exchange (LMX) on Innovative Behavior as Mediated by Mindfulness and Work Engagement. Sustainability 2021, 13, 5409. https://doi.org/10.3390/su13105409

AMA Style

Mulligan R, Ramos J, Martín P, Zornoza A. Inspiriting Innovation: The Effects of Leader-Member Exchange (LMX) on Innovative Behavior as Mediated by Mindfulness and Work Engagement. Sustainability. 2021; 13(10):5409. https://doi.org/10.3390/su13105409

Chicago/Turabian Style

Mulligan, Rowan, José Ramos, Pilar Martín, and Ana Zornoza. 2021. "Inspiriting Innovation: The Effects of Leader-Member Exchange (LMX) on Innovative Behavior as Mediated by Mindfulness and Work Engagement" Sustainability 13, no. 10: 5409. https://doi.org/10.3390/su13105409

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