The influence of variability and strategy of service supply chains on performance

This paper aims to empirically examine how customer-induced variability, process variability, supply chain strategy, and business performance interrelate in a service firm context. Quantitative data were collected via a questionnaire-based survey. A total of 376 organizations responded and 313 responses were usable. This represents an adjusted response rate of 10.43 %. The survey results were analyzed by factor analysis, ANOVA, and regression models. The results provided the basis for testing the proposed model. They indicated a positive association between customer-induced variability and process variability. Since firms have different levels of variability, each firm will have a different strategic focus. The emphasis of that strategy will, in turn, result in greater flexibility and customer satisfaction. More specifically, firms with high and low levels of variabilities are suggested to focus on the cost- and flexibility-oriented strategies, respectively.     

MIGRATION,SOCIAL NETWORKS,AND CREDIT: EMPIRICAL EVIDENCE FROM PERU

We seek evidence of the causal relationship between migration, social networks, and the probability of receiving credit in a developing country where credit markets are weak and internal migration is common. Migrants may face binding asymmetric information constraints as they often lack collateral. Social networks can help mitigate these constraints. Conversely, migrants might face higher liquidity constraints and might, therefore, demand more credit than nonmigrants. The effect of migration on participation in the credit market is thus ambiguous. Compounding this, migration and credit may be jointly determined. We utilize rich data from Peru to establish the net effect of migration on credit and the role that social networks play in this relationship.     

Environmental Reporting Through an Ethical Looking Glass

This paper adopts the lens of environmental ethics to explore whether there is a disparity between the ethical approaches of a company in comparison to those expressed by stakeholders in relation to environmental issues, specifically those communicated through the corporate environmental report. Discourse analysis is adopted to explore the environmental section of the sustainability reports of the case study company as compared to the responses of a sample of the company’s stakeholders, using the lens of three branches of environmental ethics: utilitarianism, deontology and virtue ethics. Results indicate that the ethical approaches expressed in the case study company’s environmental reports were grounded in utilitarianism and deontology, in contrast to a virtue ethics approach expressed by external stakeholders. The disparity widened as the relationship between the company and the stakeholder became less direct. This disparity signals a failure to meet one of the primary purposes for preparing sustainability reports: to engage with stakeholders. As such this research contributes to the literature by identifying a disparity in the how this information is communicated compared with how it is perceived by stakeholders. This has important implications for the success of current stakeholder engagement practices.     

Do Entrepreneurial SMEs Perform Better Because They are More Responsible?

Many scholars have investigated the direct impact of entrepreneurial orientation (EO) on performance, but this direct association seems both spurious and ambiguous because many parameters may have an indirect influence on this relationship. The present study thus considers sustainable practices—environmental practices, social practices in the workplace (SPW), and social practices in the community (SPC)—as three probable mediators in the relationship between EO and performance, which is considered in terms of its financial and non-financial dimensions. We seek to show to what extent small- and medium-sized enterprises’ (SMEs) sustainable practices are useful assets, which are supported by EO, to improve performance. Using a structural equation modeling approach, data collected from 406 French SMEs were tested against the model. Our findings reveal that EO has a positive impact on the implementation of sustainable practices and that SPW partially mediate the link between EO and performance. Taken together, these findings suggest that EO plays a role in indirectly promoting performance by enhancing certain human resource management practices.     

Testing measurement invariance using multigroup CFA: differences between educational groups in human values measurement

This article applies the testing procedures for measurement invariance using multigroup confirmatory factor analysis (MGCFA). It illustrates these procedures by investigating the factorial structure and invariance of the Portraits Value Questionnaire (PVQ, Schwartz et al.: J. Cross Cult. Psychol. 32(5), 519–542 (2001)) across three education groups in a population sample (N  =  1,677). The PVQ measures 10 basic values that Schwartz postulates to comprehensively describe the human values recognized in all societies (achievement, hedonism, self-direction, benevolence, conformity, security, stimulation, power, tradition and universalism). We also estimate and compare the latent means of the three education groups. The analyses show partial invariance for most of the 10 values and parameters. As expected, the latent means show that less educated respondents attribute more importance to security, tradition, and conformity values.     

A Test of Technical Analysis: Matching Time Displaced Generalized Patterns

We use a least squares metric to match the return pattern of a target stock with that of an out‐of‐sample‐twin. The twin with the smallest metric is found by a comprehensive period‐by‐period search of stocks in the Center for Research in Security Prices data set extending back to 1926. If technical analysis has value, targets of twins producing the highest returns in the twin postperiod should also have the highest performance in the target postperiod. Using a randomly selected sample of 66,000 return patterns, we find higher means for targets corresponding to the highest returning twin quintile. We also use regressions to risk adjust target returns and find that twin returns in the postmatch period significantly predict risk‐adjusted target returns.     

Effort maximization in asymmetric contest games with heterogeneous contestants

Contest rules are set up by administrators who frequently have discretionary power in specifying the details of these rules, i.e., they can bias the contest rules toward specific contestants in order to further their prime objective. We derive the optimal bias of the contest rule for a contest administrator, who is interested in maximizing the total efforts expended in the contest. The solution is obtained in closed form for a widely used class of n-person contest games. Setting the optimal bias has important implications: (i) there is never exclusion of strong players, instead there is (endogenously induced) inclusion of weak contestants; (ii) the contest administrator will optimally level the playing field by encouraging weak contestants, but he will not equalize the contestants’ chances unless they are identical; and (iii) at least three contestants will be active in equilibrium of the optimal contest, irrespective of heterogeneity.     

Race/Ethnicity and Education Effects on Employment in High Technology Industries and Occupations in the US, 1992–2002

High technology industries employ higher than average numbers of scientists and engineers when compared to the employment of the same group among all industries. Since these jobs require high levels of skills to undertake creative, cutting edge activities, it is anticipated that employment in these industries will be largely based on the levels of human capital of individuals or merit. This study compares how changes in levels of educational attainment affect employment in science and engineering jobs in high technology industries with those outside for four racial and ethnic groups. Although blacks and Hispanics are under-represented in science and engineering occupations, the study finds that the effects of education vary with the level of education, race/ethnicity, and the industry/occupational group under consideration in ways that suggest that the race/ethnicity of an individual still plays an important role in determining employment.     

Respondent uncertainty in a contingent market for carbon offsets

The main objective of this paper is to provide additional empirical evidence of what explains respondent uncertainty in contingent valuation (CV) and how this in turn affects stated willingness to pay (WTP). Air travelers asked to pay a carbon travel tax to offset carbon emissions from flying were asked how likely it is that they will actually pay if the tax is voluntary. When changing the market compliance imperative from a mandatory carbon tax to a voluntary contribution, a third of all air travelers consider it unlikely they will actually pay their stated WTP amount. An ordered probit estimation approach is applied to identify the sources of respondent uncertainty. Besides the bid price, respondent sense of responsibility and belief in the effectiveness of the voluntary carbon market are among the main reasons for the experienced uncertainty.     

Collusive Bidding: Lessons from the FCC Spectrum Auctions

The Federal Communications Commission (FCC) spectrum auctions use a simultaneous ascending auction design. Bidders bid on numerous communication licenses simultaneously, with bidding remaining open on all licenses until no bidder is willing to bid higher on any license. With full revelation of bidding information, simultaneous open bidding allows bidders to send messages to their rivals, telling them on which licenses to bid and which to avoid. These strategies can help bidders coordinate a division of the licenses, and enforce the proposed division by directed punishments. We examine solutions to mitigate collusive bidding in the spectrum auctions, and then apply these ideas to the design of daily electricity auctions.