Economic lot and delivery scheduling problem for multi-stage supply chains

The economic lot and delivery scheduling problem for a multi-stage supply chain comprising multiple items is studied in this paper. It is required to develop a synchronized replenishment strategy, and specify the sequence of production and the replenishment cycle time that achieves synchronization through the supply chain at minimum cost. The problem is presented in a novel formulation based on the quadratic assignment representation. The common cycle time and the integer multipliers policies are adopted to accomplish the desired synchronization. The two policies are represented by nonlinear models handled through a hybrid algorithm. The algorithm combines linearization, outer approximation and Benders decomposition techniques. Results of the two policies demonstrate that a cost reduction up to16.3% can be attained by employing the integer multipliers policy instead of the common cycle time. Computational experiments show the efficiency of the new formulation and solution algorithm by reaching the optimal solution for large problem instances in short time.     

Growth under exchange rate volatility: Does access to foreign or domestic equity markets matter?

Employing a firm-level dataset, this paper explores the effects of exchange rate volatility on the growth performances of domestic versus foreign, and publicly traded versus non-traded private manufacturing firms in a major developing country, Turkey. The empirical results using dynamic panel data estimation techniques and comprehensive robustness tests suggest that exchange rate volatility has a significant growth reducing effect on manufacturing firms. However, having access to foreign, and to a lesser degree, domestic equity markets is found to reduce these negative effects at significant levels. These findings continue to hold after controlling for firm heterogeneity due to differences in export orientation, external indebtedness, profitability, productivity, size, industrial characteristics, and time-variant institutional changes.     

The effects of two directions of conflict and facilitation on frontline employees’ job outcomes

This study investigated the effects of two directions of conflict and facilitation simultaneously on job performance, job satisfaction, and affective organisational commitment based on data obtained from frontline hotel employees in Northern Cyprus. As expected, family–work conflict dimished job performance, while family–work facilitation enhanced job performance. Contrary to our prediction, conflict between work and family domains intensified job performance. The results of the path analysis revealed that work–family facilitation increased job satisfaction, while family–work facilitation triggered affective organisational commitment. The findings pertaining to the relationships between job performance, job satisfaction, and affective organisational commitment were in the hypothesised directions. Also, the results of the confirmatory factor analysis demonstrated that the four-factor model that consisted of work–family conflict, family–work conflict, work–family facilitation, and family–work facilitation was superior compared with other models tested. Implications of the empirical findings and their future research directions are discussed in our study.     

Servant leadership,organisational trust,and bank employee outcomes

Using servant leadership and social exchange theories as the theoretical frameworks, our study proposes and tests a research model that investigates trust in organisation (TIO) as a mediator of the impact of servant leadership on three critical outcomes. These outcomes are intention to be late for work (ILW), creative performance, and service recovery performance. Data obtained from frontline bank employees in three waves at one-week apart and their managers in Saint Petersburg in Russia were used to test the aforementioned relationships. The results demonstrate that TIO is an immediate outcome of servant leadership. TIO gives rise to lower ILW and higher creative and service recovery performances. The aforesaid findings reveal that servant leadership mitigates ILW and boosts both creative and service recovery performances only through TIO. Implications for theory and practice are discussed in our paper.     

An empirical investigation of U.S. bank risk and the Mexican peso crisis

This paper examines two pairs of hypotheses about the effect of the Mexican Peso crisis on U.S. bank stock returns. We use a three-index market model as our empirical methodology because bank stocks are influenced more by both interest rate risk and foreign exchange risk than other non-banking stocks. The results show that the market reacted to each event promptly, supporting semi-strong market efficiency. To find out whether these effects created a domino effect in the U.S. banking system, a set of cross-sectional regressions were run. In general, the empirical results support the investor-contagion hypothesis, which indicates that the market penalized or rewarded banks without regard to their ecposure to the market for Mexican loans.     

Total Factor Productivity,Foreign Direct Investment,and Entry Barriers in the Chinese Automotive Industry

We explore three questions on foreign direct investment (FDI): (1) What are the differences in entry barriers for foreign, public, and private investors? (2) What are the effects of past productivity levels on future foreign direct investment (FDI) decisions? (3) What is the effect of equity structure on future total factor productivity (TFP) levels? The empirical results based on a monopolistic competition model and using a firm-level data set from the Chinese automobile industry suggest that foreign investors face higher entry barriers and react stronger to past TFP levels. FDI is also found to improve future TFP more than other forms of investment. Finally, World Trade Organization (WTO) accession is found to reduce entry barriers for foreign and domestic private investors while increasing entry barriers for public investors.     

The effects of health transformation program on patient–healthcare personnel communication and interaction in Turkey

The structure of the Turkish healthcare system is being reorganized under Health Transformation Program (HTP) and some serious changes in healthcare system are being carried out. Effective healthcare personnel and patient communication has a significant impact on patients’ health behaviors and health outcomes. The purpose of this study is to examine the effect of communication dimensions and HTP on patient and healthcare personnel communication and interaction. The survey was conducted with simple random sampling to 9,089 patients in Turkey. Exploratory factor analysis showed three dimensions of communication which are in positive and strong relationship: building relationship, process of physical examination and ending communication. Hierarchical multiple regression was performed to measure the effect of communication dimensions and HTP to patient–healthcare personnel communication and interaction. According to the first step, communication dimensions have a statistically significant effect on patient–healthcare personnel communication and interaction. Introduction of HTP to hierarchical multiple regression explained additional meaningful variance in patient–healthcare personnel communication and interaction, after controlling communication dimensions. It is revealed that, HTP has an important role on communication and interaction. This study has a macro approach and it is limited with the patients’ point of view.     

Affectivity,conflicts in the work–family interface,and hotel employee outcomes

Based on data obtained from frontline hotel employees in Turkey, the current study examined the effects of negative affectivity (NA) and positive affectivity (PA) on work–family conflict and family–work conflict and the effects of both directions of conflict on marital satisfaction and turnover intentions. This study also tested the relationship of marital satisfaction with frontline employees’ turnover intentions. The results demonstrated that PA ameliorates both work–family conflict and family–work conflict, while NA exacerbates only work–family conflict. The findings of the study indicated that family–work conflict has a detrimental impact on marital satisfaction. However, this study provided no empirical support for the relationship between work–family conflict and marital satisfaction. Consistent with the study predictions, frontline employees’ perceptions of work–family conflict and family–work conflict increased their turnover intentions. There was also empirical support for the hypothesis that marital satisfaction has a significant negative impact on frontline employees’ turnover intentions. Implications of the empirical results and limitations of the study are discussed.     

The impacts of core self-evaluations on customer-related social stressors and emotional exhaustion

Based on data collected from frontline bank employees in Northern Cyprus as the study setting, the authors developed and tested a model, which investigated the effects of core self-evaluations on customer-related social stressors and emotional exhaustion. The researchers' model also tested the impacts of these customer-related social stressors on emotional exhaustion. The results indicated that employees with positive core self-evaluations experienced low levels of disproportionate customer expectations, customer verbal aggression, and ambiguous customer expectations. Such employees were also confronted with less-disliked customers. In this study, it was found that employees who were susceptible to ambiguous customer expectations were emotionally exhausted. In contrast, the findings did not lend any empirical support to the effects of disproportionate customer expectations, customer verbal aggression, and disliked customers on emotional exhaustion.