Leader–member exchange and follower creativity: the moderating roles of leader and follower expectations for creativity

We examined leader and follower expectations for creativity as moderators in the relationship between leader–member exchange (LMX) and follower creativity. The results of a survey among 193 leader–follower dyads from two high-tech companies in mainland China show that LMX positively relates to follower creativity, and that leader and follower expectations for creativity moderate this relationship. Specifically, the relationship between LMX and follower creativity is positive and significant when either leaders or followers, or both leaders and followers, set high rather than low expectations for creativity, with the highest level of follower creativity observed when leaders and followers congruently hold high creativity expectations. In contrast, the LMX–follower creativity relationship is blurred when leaders and followers congruently hold low expectations for creativity. We discuss the relevance of these results from theoretical and professional perspectives.     

Health care: a leader or a follower? Reducing disposable waste

We clearly have the means to examine and reduce the amounts and types of disposable medical waste that health care institutions are creating. Although there may be special circumstances that prevent specific hospitals, or specific departments within a hospital, from converting to alternative products, much improvement can still be made. There are several strong examples of hospitals across the United States with programs that have drastically cut the amount of waste they are generating. They have eliminated disposable cups and eating utensils from the cafeterias, shifted to reusable underpads and surgical linens, and established recycling programs for paper and cardboard. These few cases are not enough. We cannot be lulled into believing that these exceptional efforts on the part of a few institutions are all that is needed. We should remember that if Mother Nature had intended for us to pat ourselves on the back, our hinges would be different. What is needed is a clear statement from the health care industry of its responsibility to society with regard to managing its waste. Leadership begins with action. If the health care industry does not take steps to regulate its disposable waste, the government undoubtedly will. We do not need to wait for our supervisors or administrators to fashion credos for us. All staff members know there are numerous ways that they can affect the amount of waste produced at their hospitals. They can also begin to affect the attitudes of those working around them. The consequences of inaction are simply too great. As fictional as half-empty grocery stores may have sounded at the beginning of this article, the problems that we face with waste disposal are certainly as grim. If we wait for our state and federal governments to solve the problems, it may be too late; and if it is too late, the solutions that they develop will certainly be extreme. We have the technology and the ability to cut dramatically the amount of disposable waste that health care generates. In practically every case, the lower-waste options also save the institution money. It is time that we honestly challenged our need for today's convenience at the expense of tomorrow's quality of life.     

If you're close with the leader,you must be a brownnose: The role of leader–member relationships in follower,leader, and coworker attributions of organizational citizenship behavior motives

Although scholars have recognized that organizational citizenship behavior (OCB) can be attributed to either self-serving or other-serving motives, little research has addressed the conditions under which different observers will make positive versus negative attributions for OCB. We draw on leader-member exchange (LMX) and attribution theories to propose that high-quality LMX relationships are associated with positive attributions of OCB motives by the follower and the leader but negative attributions of OCB motives by coworkers. We theorize that while high-quality LMX relationships are associated with attributions of pro-social and organizational concern motives by the follower and the leader, coworkers view OCB performed by those in high-quality LMX relationships as driven by impression management motives. We discuss implications for theory and research on OCB and LMX.     

Verification results for age-structured models of economic–epidemics dynamics

In this paper we propose a macro-dynamic age-structured set-up for the analysis of epidemics/economic dynamics in continuous time.The resulting optimal control problem is reformulated in an infinite dimensional Hilbert space framework where we perform the basic steps of dynamic programming approach.Our main result is a verification theorem which allows to guess the feedback form of optimal strategies. This will be a departure point to discuss the behavior of the models of the family we introduce and their policy implications.     

A network approach for assembling and linking input–output models

Input–output (IO) models, describing trade between different sectors and regions, are widely used to study the environmental repercussions of human activities. A frequent challenge in assembling an IO model or linking several such models is the absence of flow data with the same level of detail for all components. Such problems can be addressed using proportional allocation, which is a form of algebraic transformations. In this paper, we propose a novel approach whereby the IO system is viewed as a network, the topology of which is transformed with the addition of virtual nodes so that available empirical flow data can be mapped directly to existing links, with no additional estimation required, and no impact on results. As IO systems become increasingly disaggregated, and coupled to adjacent databases and models, the adaptability of IO frameworks becomes increasingly important. We show that topological transformations also offer large advantages in terms of transparency, modularity and increasingly importantly for global IO models, efficiency. We illustrate the results in the context of trade linking, multi-scale integration and other applications.     

Government secondary school finances in New South Wales: accounting for students’ prior achievements in a two-stage DEA at the school level

This study measures the efficiency of government secondary schools in New South Wales, Australia, using a two-stage semi-parametric production frontier approach to schooling. In contrast to previous research comparing school performance with two-stage data envelopment analysis (DEA), we control for prior academic achievement of students by using a rich data set from 2008 to 2010. We employ detailed financial data for deriving the envelope for the efficient production frontier of the schools. Using Simar and Wilson’s (J Econ 136:31-64, 2007, J Prod Anal 36:205-218, 2011a) double bootstrap procedure for two-stage DEA, the study finds that schools with lower total student numbers, a higher average of years of service of teachers, a higher ratio of special education students that attracts extra government funding, and girls only do better than other schools. On the other hand, a negative influence comes from a school’s location in provincial and outer metropolitan areas. An important result is that the socio-economic background of students attending a school has no significant effect on their academic performance, whereas higher prior academic achievements have a positive and statistically significant impact on student achievement. These results are relevant to decision makers for the school sector, in particular for funding criteria contained in the Gonski (Review of funding for schooling - Final report (December). Canberra: Commonwealth Government of Australia, 2011) review report.     

Estimation in generalized bivariate Birnbaum–Saunders models

In this paper, we propose two moment-type estimation methods for the parameters of the generalized bivariate Birnbaum–Saunders distribution by taking advantage of some properties of the distribution. The proposed moment-type estimators are easy to compute and always exist uniquely. We derive the asymptotic distributions of these estimators and carry out a simulation study to evaluate the performance of all these estimators. The probability coverages of confidence intervals are also discussed. Finally, two examples are used to illustrate the proposed methods.     

The impact of organizational and leader–member support on expatriate commitment

Using data from expatriates at MNC subsidiaries in China, this paper investigates the relationships between parent company and local subsidiary perceived organizational support (POS), leader–member exchange (LMX) and affective commitment of expatriates. The study examines the moderating effect of LMX in the relationships between both parent company and local subsidiary POS and affective commitment. Results support the relationships between both parent company and local subsidiary POS, LMX and the expatriate affective commitment, and the moderating effect of LMX in the relationships between parent company POS and affective commitment.     

Lévy CARMA models for shocks in mortality

Decisions in Economics and Finance - Recent literature on mortality modeling suggests to include in the dynamics of mortality rates the effects of time, age, the interaction of these two and a term...     

An iterative computational scheme for solving the coupled Hamilton–Jacobi–Isaacs equations in nonzero-sum differential games of affine nonlinear systems

In this paper, we present iterative or successive approximation methods for solving the coupled Hamilton–Jacobi–Isaacs equations (HJIEs) arising in nonzero-sum differential game for affine nonlinear systems. We particularly consider the ones arising in mixed \({\mathcal H}_{2}/{\mathcal H}_{\infty }\) control. However, the approach is perfectly general and can be applied to any others including those arising in the N-player case. The convergence of the method is established under fairly mild assumptions, and examples are solved to demonstrate the utility of the method. The results are also specialized to the coupled algebraic Riccati equations arising typically in mixed \({\mathcal H}_{2}/{\mathcal H}_{\infty }\) linear control. In this case, a bound within which the optimal solution lies is established. Finally, based on the iterative approach developed, a local existence result for the solution of the coupled-HJIEs is also established.     

How to innovate business models for a circular bio-economy?

Shifting from a linear to a circular bio-economy requires new business models. The objective was getting insights into the uncharted research field of business model innovation for a circular and sustainable bio-economy within the agrifood sector. Eight European cases valorising agricultural waste and by-products by closing loops or cascading were studied regarding their innovation drivers and elements, via interviews, on-site visits and secondary data. In this domain, the findings highlight that business model innovations are depending on the (i) macro-environmental institutional-legal conditions and market trends, (ii) driven by internal economic, environmental and/or social objectives, but especially strongly linked to (iii) other actors often from different sectors seeking synergies and (iv) value co-creation via combined organisational and technological innovations. Business models for a circular bio-economy thus depend on various action levels and need radical combined organisational and technological innovations for a most efficient usage of agricultural waste and by-products. This also means new business configurations instead of linear innovation strategies currently still being dominant due to economic viability.     

Professionals' supervisor–subordinate relationships,autonomy and commitment in Australia: a leader–member exchange theory perspective

This article used leader–member exchange theory as a lens for comparing the impact of the supervisor–subordinate relationship on two types of professionals' perceptions of autonomy, and in turn upon their affective commitment. The reason for examining autonomy is because a characteristic of being a professional is having autonomy; however, we argued that such perceptions are affected by the quality of the supervisor–subordinate relationship. The findings confirmed this argument, although the trend was stronger for engineers than for nurses. Using the ordinary least square procedure, the goodness of fit of the model identified that supervision and autonomy accounted for approximately a third of the variance for engineers' levels of affective commitment and a fifth of the variance for nurses. That is, the impact of supervision practices was stronger on autonomy and commitment for engineers than for nurses in Australia. Moreover, statistically, the two groups of professionals were similar in their perceptions of the quality of their supervisor–subordinate relationship as well as in their perceptions of autonomy, and the qualitative findings supported similar factors impacting upon their perceptions. The only significant difference between the two groups was in their levels of affective commitment. The implications of these results include the need for those managing professionals to consider ways of improving workplace supervisor–subordinate relationships because of the impact upon perceived autonomy as well as commitment to their organisation, and hence the retention of such professionals.     

Statistical evaluation of Data Envelopment Analysis versus COLS Cobb–Douglas benchmarking models for the 2011 Brazilian tariff revision

In 2011, the Brazilian Electricity Regulator (ANEEL) implemented a benchmarking model to evaluate the operational efficiency of power distribution utilities. The model is based on two benchmarking methods: Data Envelopment Analysis (DEA) and Corrected Ordinary Least Squares (COLS) with a Cobb Douglas production function. Although the estimated scores are highly correlated, differences between the scores are as high as 41%. For some companies differences between the efficiency scores result in substantial reduction in regulatory operational costs. We provide a detailed statistical comparison which indicates that the COLS Cobb Douglas model has major deficiencies in terms of estimating efficiency scores.     

A taxonomy of expatriate leaders' cross-cultural uncertainty: insights into the leader–employee dyad

The authors develop a theory-based taxonomy of expatriate leaders' cross-cultural uncertainty toward local employees by drawing on uncertainty reduction theory. Two studies with expatriate leaders provide the empirical basis. The first, qualitative study uses in-depth interviews with 23 expatriate leaders to identify major facets and constructs for describing expatriate leaders in different uncertainty constellations. A quantitative survey-based study with dyadic data about 149 expatriate leaders and their local employees identifies five different expatriate types with regard to their cross-cultural uncertainty. The results reveal performance differences across the five expatriate types.     

Comparing the impact of leader–member exchange,psychological empowerment and affective commitment upon Australian public and private sector nurses: implications for retention

This study uses Leader–Member Exchange (LMX) theory to test the associations between the supervisor–subordinate relationship, psychological empowerment and affective commitment amongst 1283 nurses working in Australian public and private hospitals. Both qualitative and quantitative data were collected, analysed and presented. The findings show that the quality of LMX is more important in public sector nursing contexts than in the private sector with regard to the relationship between empowerment and affective commitment. Furthermore, the relationship between empowerment and affective commitment is stronger for nurses in public sector organisations with low-quality LMX than for nurses in public sector organisations with high-quality LMX. As empowerment and affective commitment are both predictors of staff retention, the findings can assist in developing targeted current and future retention strategies for healthcare management.     

Second-best cost–benefit analysis in monopolistic competition models of urban agglomeration

This paper examines the agglomeration benefits of a transportation improvement in a city by modeling the microstructure of urban agglomeration based on monopolistic competition of differentiated intermediate products. Properly extended to include variety distortion in addition to price distortion, Harberger’s measure of excess burden yields the agglomeration benefits. The agglomeration benefits are positive if increasing the variety is procompetitive; however, in the anticompetitive case, we cannot exclude the possibility of negative additional benefits. If there are multiple cities, the net agglomeration benefits can be negative when other cities that experience a reduction in population have larger agglomeration economies.     

Symmetry and Bates’ rule in Ornstein–Uhlenbeck stochastic volatility models

We find necessary and sufficient conditions for the market symmetry property, introduced by Fajardo and Mordecki (Quant Finance 6(3):219–227, 2006), to hold in the Ornstein–Uhlenbeck stochastic volatility model, henceforth OU–SV. In particular, we address the non-Gaussian OU–SV model proposed by Barndorff-Nielsen and Shephard (J R Stat Soc B 63(Part 2):167–241, 2001). Also, we prove the Bates’ rule for these models.     

Fostering societal impact and job satisfaction: the role of performance management and leader–member exchange

ABSTRACT

Performance management (PM) can alienate employees from experiencing societal impact. This is problematic since societal impact influences employees’ job satisfaction. To avoid such unintended effects, we investigate two conditions under which PM could instead benefit the societal impact and job satisfaction of employees: consistency and leader-member exchange. Results show consistent PM fosters job satisfaction, mediated by societal impact and moderated by leader–member exchange. Public organizations should streamline expectations communicated through PM and constructive leader relationships could reinforce this process. By examining the conditions under which PM can avoid unintended effects on employees, we add to the debate on PM effectiveness.     

Cultural intelligence and voice behavior among migrant workers: the mediating role of leader–member exchange

Abstract

This empirical study is the first to explicitly examine cultural intelligence (CQ) as an antecedent of voice behavior and to explore the mediating role of leader–member exchange (LMX) in the CQ–voice relationship. Two hundred and sixty-one usable questionnaires were collected from migrant workers in Australia using an online survey. The data were analyzed with regression analyses and structural equation modeling. Results showed that migrant employees with higher CQ were more likely to engage in voice behavior. The positive relationship between CQ and voice behavior was partially mediated by LMX. These findings verify a relatively new individual antecedent (i.e. CQ) of voice behavior and reveal the underlying mediation mechanism that explains the effects of CQ on employee voice. This study also carries important implications for managing culturally-diverse workforces (i.e. migrant workers) regarding the promotion of voice.