A three-level supply chain network design model with risk-pooling and lead times

This paper considers a single-sourcing network design problem for a three-level supply chain consisting of suppliers, distribution centers (DC’s) and retailers, where risk-pooling strategy and DC-to-supplier dependent lead times are considered. The objective is to determine the number and locations of suppliers and DC’s, the assignment of each location-fixed DC to a supplier and that of each retailer to a DC, which minimizes the system-wide location, transportation, and inventory costs. The problem is formulated as a nonlinear integer programming model, for which a two-phase heuristic solution algorithm is derived based on the Lagrangian relaxation approach. Numerical experiments show that the proposed heuristic is effective and also efficient.     

Companies’ Use of Whistle-Blowing to Detect Fraud: An Examination of Corporate Whistle-Blowing Policies

In order to provide an effective whistle-blowing system, it is expected that companies would provide employees with a high level of disclosure regarding the whistle-blowing process. This study investigates variation in the extent of whistle-blowing disclosures. As a measure of whistle-blowing implementation, this study further examines the provision of a hotline channel. The results suggest that the extent of whistle-blowing disclosures is positively associated with the permissibility of anonymous reporting and organisational support for whistle-blowing, the number of external directors on the audit committee, and the existence of concentrated shareholdings. The mere existence of whistle-blowing disclosures could simply be symbolic. The findings also indicate a greater likelihood of the provision of hotlines when companies are larger in size, have a higher level of current inventory, are cross-listed in the US, and permit anonymous reporting.     

Financial Integration in East Asia: An Empirical Investigation

The central objective of this paper is to empirically evaluate the degree of linkages among East Asian equity and bond markets. Using data from the IMF’s Coordinated Portfolio Investment Survey (CPIS), we find that intra‐East Asian financial asset holdings of four East Asian countries – Japan, Korea, Hong Kong and Singapore – are larger than the levels predicted by the financial gravity model. However, our analysis suggests that this result is likely to be driven by intra‐regional trade linkages and reflect those linkages. Therefore, the salient implication for regional policymakers is that they should continue to promote intra‐regional financial integration. This paper also aims to analyse the impact of three different types of country‐specific risks – political, economic and financial risks – on investment from the four countries. This analysis yields a clear positive relationship between destination‐country risk, in particular political risk, and capital inflows.     

Knowledge sharing,work–family conflict and supervisor support: investigating a three-way effect

Despite the importance of knowledge sharing in competitive environments, there is a paucity of studies examining the relationship between employee knowledge sharing and work–family conflict. Drawing on insights from conservation of resources theory, this study investigated how employees may reduce their knowledge-sharing behaviors when they experience resources lost from work interference with family (WIF) or family interference with work (FIW). Furthermore, the role of supervisor support in the relationship among WIF, FIW and knowledge sharing was explored as a valuable resource. Using data collected from 159 employees in South Korea, we found support that WIF is negatively related to knowledge sharing. In addition, the role of supervisor support in the relationship among WIF, FIW and knowledge sharing was the strongest when WIF is low and FIW is high, thus supporting the hypothesized a three-way effect. Theoretical and practical implications are discussed.