Bias of distance functions estimates and Primont and Primont’s homotheticity test

The question of whether a technology exhibits particular properties such as radial input or output homotheticity is a crucial one for a producer since it should strongly impact on its reactions to market changes. Primont and Primont (Econ Lett 45:191–195, 1994) established that it can be tested using only weak assumptions. They further used their results to test for input homotheticity of an educational production technology (Primont and Primont, Can J Econ 29:587–591, 1996). In this paper, it is shown that if not implemented properly, the test can lead to biased results. Some ways to obtain unbiased results are also suggested.

Person–organization fit and employee outcomes: test of a social exchange model

Data obtained from subordinate–supervisor dyads (N = 314) of a large manufacturing company in South Korea were used to test a moderated mediation model of the processes linking person–organization (P–O) fit and employee work attitudes and behaviors. The results revealed that the influence of P–O fit on work attitudes and behaviors was indirect through perceived social exchange with organization. In addition, the relationship between P–O fit and perceived social exchange with organization was moderated by leader–member exchange (LMX) quality. Specifically, a high-quality LMX enhanced the positive effects of P–O fit on perceived social exchange with organization.     

A test of the relationship between person–environment fit and cross-cultural adjustment among self-initiated expatriates

Understanding an expatriate's cross-cultural adjustment to the various aspects of their host environment and organization has been a focal point of research for several decades. Person–environment (PE) fit refers to the degree of fit an individual has with various dimensions of their host environment, and past research suggests that successful PE fit positively influences adjustment. However, the strength of these relationships remains under-researched. Drawing upon data gathered from 369 self-initiated expatriate doctors working in Ireland, we examine the strength of the relationship between PE fit and cross-cultural adjustment. Our results suggest that dimensions of PE fit influence cross-cultural adjustment to varying degrees. Thus, person–job needs-supplies fit was the only fit dimension to influence interaction adjustment, while person–job demands abilities influenced both work adjustment and, to a lesser extent, interaction adjustment. Person–organization fit influenced work adjustment, while person–supervisor fit had no relationship with adjustment. These findings have implications for organizations when recruiting and supporting self-initiated expatriates.     

Are shirking and leisure substitutable? An empirical test of efficiency wages based on urban economic theory

Recent theoretical work has examined the spatial distribution of unemployment using the efficiency wage model as the mechanism by which unemployment arises in the urban economy. This paper extends the standard efficiency wage model in order to allow for behavioral substitution between leisure time at home and effort at work. In equilibrium, residing at a location with a long commute affects the time available for leisure at home and therefore affects the trade off between effort at work and risk of unemployment. This model implies an empirical relationship between expected commutes and labor market outcomes, which is tested using the Public Use Microdata sample of the 2000 U.S. Decennial Census. The empirical results suggest that efficiency wages operate primarily for blue collar workers, i.e. workers who tend to be in occupations that face higher levels of supervision. For this subset of workers, longer commutes imply higher levels of unemployment and higher wages, which are both consistent with shirking and leisure being substitutable.     

Co-determination of capital structure and stock returns—A LISREL approach: An empirical test of Taiwan stock markets

Titman and Wessels (1988) utilize a structural-equations model (LISREL) to find out the latent determinants of capital structure. Maddala and Nimalendran (1996) indicate that the problematic model specification causes the poor results in Titman and Wessels’ research. Chang, Lee, & Lee (2009) apply a Multiple Indicators and Multiple Causes (MIMIC) model to re-examine the same issue as Titman and Wessels did but found more convincing results. We extend Titman and Wessels’ research from using a single-equation approach to a multi-equations approach. In addition to the determinants of firms’ capital structure, those of stock returns are determined simultaneously. Literature indicates that a firm's capital structure may affect its stock returns (Bhandari, 1988), and the reverse is true too (Baker and Wurgler, 2002, Lucas and McDonald, 1990, Welch, 2004). Hence, a firm's determinants of its capital structure and those of its stock returns should be decided simultaneously, rather than independently. By solving the simultaneous equations, we examine the empirical relationship between the two endogenous variables: capital structure and stock returns and find out their common determinants as well. Our results show that stock returns, expected growth, uniqueness, asset structure, profitability, and industry classification are the main factors of capital structure, while the primary determinants of stock returns are leverage, expected growth, profitability, value and liquidity. The level of debt ratios and stock returns are mutually determined by the aforementioned factors and themselves.     

Are stock prices related to the political uncertainty index in OECD countries? Evidence from the bootstrap panel causality test

This study applies the bootstrap panel causality test proposed by Kónya (2006. Econ Modell 23, 978) to investigate the causal link between political uncertainty and stock prices for seven OECD countries over the monthly period of 2001.01 to 2013.04. This modeling approach allows us to examine both cross-sectional dependency and country-specific heterogeneity. Our empirical results indicate that not all the countries are alike and that the theoretical prediction that stock prices fall at the announcement of a policy change is not always supported. Specifically, we find evidence for the stock price leading hypothesis for Italy and Spain, while the political uncertainty leading hypothesis cannot be rejected for the United Kingdom and the United States. In addition, the neutrality hypothesis was supported in the remaining three countries (Canada, France and Germany), while no evidence for the feedback hypothesis was found.     

The wisdom of the few or the wisdom of the many? An indirect test of the marginal trader hypothesis

The Marginal Trader Hypothesis (Forsythe et al. 1992, in American Economic Review 82(5): 1142–1161) posits that a small group of well-informed traders keep an asset’s market price equal to its fundamental value. Forsythe et al. base this claim on evidence from U.S. presidential prediction markets. We test the Marginal Trader Hypothesis by examining a decision task that precludes marginal traders. Specifically, students are asked to predict the class average for a given exam. We show that performance on our task is similar to that reported for the Iowa Electronic Markets, and that accuracy is unrelated to academic performance and does not correlate across tasks.     

Corporate entrepreneurship: a test of external and internal influences on managers’ idea generation,risk taking,and proactiveness

Because upper managers have the responsibility to set the corporate entrepreneurship agenda, their entrepreneurial characteristics matter to a firm's successful implementation of corporate entrepreneurship. This study investigated influences on the idea creation, risk taking, and proactiveness perceptions of upper managers in a random sample of 105 Thai manufacturing firms. Results indicate that these managers' idea generation was influenced by the type of product produced, the size of the company, and the extent of firm support for individual entrepreneurship. Managerial risk taking was associated with firm size and extent of support for personal entrepreneurship. Managerial proactiveness as associated only with the scope of firms' competition, firm size, organizational entrepreneurial climate and support for personal entrepreneurship. Results suggest that firm context can influence the basis for corporate entrepreneurship.     

The relationship between employee performance management and civil servants’ turnover intentions: a test of the mediating roles of system satisfaction and affective commitment

In search of maximizing efficiency, public organizations found solace in the adoption of employee performance management (EPM) systems. While research supports that managing employees’ performance has favourable outcomes, it is still unclear why and under which conditions. Moreover, EPM systems might even create additional pressures and therefore increase turnover intentions and undermine public organization’s quest to maximize efficiency. We argue that when EPM systems are carried out consistently (i.e. internal consistency) and when they link civil servants’ individual goals to the organization’s strategic goals (i.e. vertical alignment), civil servants will be less likely to leave the organization. Hierarchical linear regression analysis shows that internal consistency relates to increased satisfaction with the EPM system and affective commitment to the organization. Vertical alignment relates to lower levels of turnover intentions. This relationship was mediated by EPM system satisfaction and affective commitment. These findings that contribute to our understanding of EPM systems can lead to favourable outcomes.     

Did Vietnam stock market avoid the “contagion risk” from China and the U.S.? The contagion effect test with dynamic correlation coefficients

This paper examines the Vietnamese stock market with an extension of the recent investigation of risk contagion effects. Daily data spanning October 9, 2006–June 19, 2009 are sourced for the empirical validation of the risk contagion between the stock markets in Vietnam, China, and the U.S. To facilitate the validation of contagion effects with market related coefficients, this paper constructs a bivariable EGARCH model of dynamic condition correlation coefficients. First, we examine whether there are contagion effects when there is a financial crisis in the Vietnamese stock market. Next, we verify whether the contagion risk triggered by the crisis can affect the Vietnamese market and examine which market influences the Vietnamese market the most. We find that compared to the U.S. stock market, the Chinese stock market brings more contagion risk to the Vietnamese market, and these effects gain more significance after the sub-prime mortgage crisis.     

Preliminary test ridge regression estimators with student’s <Emphasis Type="Italic">t</Emphasis> errors and conflicting test-statistics

The preliminary test ridge regression estimators (PTRRE) based on the Wald (W), Likelihood Ratio (LR) and Lagrangian Multiplier (LM) tests for estimating the regression parameters has been considered in this paper. Here we consider the multiple regression model with student t error distribution. The bias and the mean square errors (MSE) of the proposed estimators are derived under both null and alternative hypothesis. By studying the MSE criterion, the regions of optimality of the estimators are determined. Under the null hypothesis, the PTRRE based on LM test has the smallest risk followed by the estimators based on LR and W tests. However, the PTRRE based on W test performs the best followed by the LR and LM based estimators when the parameter moves away from the subspace of the restrictions. The conditions of superiority of the proposed estimators for both shrinkage parameter, k and the departure parameter, are provided. Some tables for the maximum and minimum guaranteed efficiency of the proposed estimators have been given, which allows us to determine the optimum level of significance corresponding to the optimum estimator. Finally, we conclude that the estimator based on Wald test dominates the other two estimators in the sense of having highest minimum guaranteed efficiency.