A supply chain-transport supernetwork equilibrium model with the behaviour of freight carriers

This paper presents a supernetwork equilibrium model integrating supply chain networks with a transport network, namely, a supply chain-transport supernetwork equilibrium model. The model takes into account the behaviour of freight carriers and transport network users to endogenously determine the transport costs generated in the supply chain networks. The interaction between transport network and supply chain networks can also be examined. Results of the numerical tests reveal that the improvement of transport network could enhance the efficiency of supply chain networks. The paper makes contributions to modelling of supply chain networks as well as to that of transport networks.     

Debt covenants in Japanese loan markets: in comparison with the traditional relationship banking

This study investigates determinants of debt covenants in Japanese loan markets. We focus on a unique monitoring mechanism by Japanese banks and hypothesise that debt covenants substitute for the traditional main bank governance. Consistently, we find that debt covenants are less likely to be used for firms with stronger ties with their main banks. We also document that such use of debt covenants results in borrower’s upward earnings management. Overall, our evidence suggests that, in the Japanese context, debt covenants are used as a substitute for the main bank system yet they alone are an incomplete monitoring mechanism.     

Modeling the performance of US direct investment in Japan: Some empirical estimates

Foreign firms' direct investments in Japan increased from about $930 million in 1984 to $2.2 billion in 1987, and are still increasing at a rapid rate. Most of these investments come from the United States and Europe. In this paper a short-run model for the performance of a foreign parent firm's subsidiary in Japan is presented. The model is based on theories presented by Hymer, Caves, Buckley and Casson, among others, and consists of two equations: one for profitability and the other for growth. Duality is used to relate a parent firm's activities to its subsidiary firm's profitability. The model is estimated using data for US firms' subsidiaries in the Japanese chemical industry. We find that for jointly owned subsidiaries (joint ventures), imports from US parent firms and the R&D spending by both US and Japanese parent firms are major determinants of profitability and growth. US firms' fully owned subsidiaries, however, exhibit considerably different profit and growth behavior than their jointly owned counterparts. Because of the small sample sizes used, it is not possible to ascertain the sources of the observed differences.     

Patient Admission Patterns and Acquisitions of "Feeder" Hospitals

Acquiring outlying community hospitals is one approach commonly used by large tertiary care hospitals to increase referrals. Sophisticated acquirers may also seek to selectively increase referrals of more profitable patients. To explore these issues, we study vertical hospital acquisitions. Using a treatment and control framework, we find that roughly 30% of vertical acquisitions lead to a significant increase in referrals. Very few result in decreases. We find that increases are concentrated among patients undergoing more profitable procedures and with more generous insurance. However, we find no evidence that hospitals shun patients with higher expected costs of care.     

Aggressiveness of Managers in the Market with Network Effects: The Case of Biased Managers as Strategic Commitment

This paper analyzes a model wherein firms' owners hire biased managers in a differentiated goods duopoly with network effects. We show that whether firms hire an aggressive manager or not depends on both the degree of product differentiation and the strength of network effects in price competition whereas it does not depend on the degree of product differentiation or the strength of network effects in quantity competition. Thus, the attitudes of firms' managers depend on the type of competition and the relative magnitude of the strength of network effects to the degree of product differentiation. Copyright © 2015 John Wiley & Sons, Ltd.     

Can Small Class Policy Close the Gap? An Empirical Analysis of Class Size Effects in Japan

Can smaller classes lead to better educational outcomes and greater equality in achievement? We estimate the causal effects of class size on achievement tests by using discontinuous changes in class size under the Japanese public compulsory education system. We employ a value‐added model that uses achievement tests conducted at two different times during the same school year. Our results show that a reduction in class size has significantly positive effects on Japanese language test scores in the sixth grade, especially at schools in wealthy areas. However, we find no evidence that a universal small class policy closes the achievement gap among schools.     

Estimating switching costs involved in changing mobile phone carriers in Japan: Evaluation of lock-in factors related to Japan’s SIM card locks

This paper employs a web-based conjoint-type questionnaire to examine empirically user preference for a hypothetical Subscriber Identity Module (SIM) unlock situation in Japan’s mobile phone market. This paper also analyzes carriers’ other marketing strategies to lock in consumers. The empirical analysis in this study reveals the following: over 80% of survey respondents evaluate a highly compatible platform with the SIM unlocked. Approximately 70% of consumers find that the value of discounts on initial payments exceeds the discounts on one-year monthly payments. In addition, conditions set by continuing agreements for mobile carriers and mobile handsets reduce consumer benefit by 35% at the median in the case of SIM unlocking with compatible platforms.     

Wal‐Mart innovation and productivity: a viewpoint

Abstract Technology effects, business process development, and productivity growth are considered in the context of a single company: Wal‐Mart. The starting point is the 2001 McKinsey Global Institute report, which finds that over 1995–2000, a quarter of U.S. productivity growth is attributable to the retail industry, and almost a sixth of that is attributable to Wal‐Mart. Wal‐Mart is interesting as well because of its rapid growth in Canada. This is now Canada's largest private sector employer. We also consider other evidence relevant to public policy formation concerning Wal‐Mart and conclude with a discussion of options for partially filling important data gaps.     

Returns to scale: concept,estimation and analysis of Japan's turbulent 1964–88 economy

Abstract There is policy interest in factoring productivity growth into technical progress and returns to scale components. Our approach uses exact index number methods to reduce the parameters that must be estimated, and allows us to exploit the cross‐sectional dimension of plant‐level panel data. We show that the same equation can also be used to estimate ‘Harberger’ scale economies and technical progress indicators that require fewer assumptions. Estimates of the elasticity of scale for Japanese establishments in three major industries over 1964–88 are presented. Our study spans the high growth era of the 1960s, two oil shocks, and other exogenous shocks.