Fertility,Intra‐Generational Redistribution,and Social Security Sustainability

Incorporating heterogeneity in preference to having children into an overlapping generations model of a small open economy, we examine the effects of changes in the size of pay‐as‐you‐go (PAYG) social security on fertility choices of individuals and population growth of the economy. It is shown that PAYG social security will raise population growth by increasing the number of individuals who have children and the number of children parents have if the system involves redistribution between retirees with different contributions, whereas, if it has no redistribution, PAYG social security does not affect the fertility decisions of individuals.     

On the comparison of alternative specifications for money demand: The case of extremely low interest rate regimes in Japan

Using Japanese money market data, this paper compares the predictive ability of the log–log specification with infinite elasticity at a zero interest rate and the semilog specification with a one time switch from moderate to relatively high semielasticity at annual interest rates less than 0.5%. We find that the latter specification dominates the former in terms of predictive ability for the extremely low interest rate regime (the period between 1999 and 2006) because under the former the semielasticity is excessively sensitive to slight changes in interest rates. We find that interest rate semielasticity has remained stable at a high level since the mid-1990s.     

Sales management: Learning and innovation in Japan

Abstract

The purpose of this study was to examine ways to promote learning, based on four empirical studies of salespeople and sales departments in Japan. First, analyses of survey data of 192 real estate salespeople indicated that customer- and goal achievement-oriented sales beliefs enhanced experiential learning at work. Second, analyses of data of 193 sales departments indicated that customer orientation in sales departments promotes innovation by facilitating task conflict and preventing process conflict. Third, analyses of survey research of 199 sales departments indicated that behavior-based and knowledge-based management control systems are effective at promoting learning and innovation. Finally, a case study of Nippon Boehringer Ingelheim (NBI) revealed several ways to facilitate learning using a behavior-based sales management control system. Theoretical implications for sales management systems were examined.     

INSUFFICIENT ENTRY OF EMPLOYEE‐CONTROLLED FIRMS IN A FREE‐ENTRY OLIGOPOLY

This study is a theoretical examination of whether employee‐controlled firms (ECFs) enter a free‐entry oligopolistic market excessively or insufficiently, from the viewpoint of welfare maximization. The excess entry theorem is well known in oligopoly theory. According to this theorem, a greater number of profit‐maximizing firms enter a free‐entry oligopolistic market than is optimal for welfare maximization. We demonstrate the possibility that insufficient entry arises when ECFs compete in a free‐entry market. In particular, we show that if both the demand and cost functions are convex, insufficient ECF entry necessarily occurs. Our results suggest that competition among firms seeking purposes other than profit might lead to insufficient entry because differences in competing firms’ objectives affect the intensity of market competition.     

Energy‐Related Environmental Policy and Its Impacts on Energy Use in Asia

Economic growth in Asia has increased in the past three decades and has heightened energy demand, resulting in rising greenhouse gas emissions and severe air pollution. To tackle these issues, fuel switching and the deployment of renewables are essential. In the present paper, we discuss the environmental regulations, mainly carbon pricing, implemented in Asia and discuss their achievements. Empirical studies using microdata have shown that carbon pricing in Asia can reduce carbon emissions by promoting energy efficiency. At the macro level, we observe some evidence of fuel switching from coal to natural gas among major emitters. However, more carbon pricing is necessary in Asia if we aim for the decarbonization of the economy.     

Web usage mining approaches to page recommendation and restructuring

As an increasing number of Web sites such as e-businesses consist of an increasing number of pages, users find it more difficult to rapidly reach their own target pages. Ill-structured design of Web sites also prevents the users from rapidly accessing the target pages. In this paper, we describe two complementary approaches to Web usage mining as a key solution to these issues. First, we describe an adaptable recommendation system called the L-R system, which constructs user models by classifying the Web access logs and by extracting access patterns based on the transition probability of page accesses and recommends the relevant pages to the users based on both the user models and the Web structures. We have evaluated the prototype system and have obtained the positive effects. Second, we describe another approach to constructing user models, which clusters Web access logs based on access patterns. The user models also help to discover unexpected access paths corresponding to ill-formed Web site design. Copyright © 2003 John Wiley & Sons, Ltd.     

Spatial competition,concentration and welfare

This paper gives the general conditions under which the firm's f.o.b. mill price may rise or fall due to spatial separation of buyers and/or spatial entry of rival firms. Several theorems are proposed concerning the fundamental mechanism underlying certain paradoxical implications of two orthodox spatial competition models. A third alternative model of competition set forth elsewhere is reexamined, and is shown to generate the largest market areas for individual firms, the lowest product prices, and the greatest industry supply — the greatest consumer welfare.     

A Note on Environmental Awareness and Cross-Border Pollution

Considering a Nash equilibrium in which a developed country chooses the amount of foreign aid and a developing country sets the emission tax rate and the proportion of the received aid allocated to public abatement of pollution, it is shown that an increase in the recipient countrys environmental awareness will reduce the level of cross-border pollution and benefits the donor though its foreign aid is increased.