Optimal privatization policy with asymmetry among private firms

We revisit the relationship between the optimal privatization policy and market competition indexes such as the Hirschman–Herfindahl index. It is affected by the number of the firms and asymmetry among the sizes of the firms; the smaller the number of firms and the more asymmetry among firms, the higher the market concentration index. The literature on mixed oligopolies suggested that the optimal degree of privatization increases with the number of private firms, and thus, decreases with the market competition index, assuming that all private firms are homogeneous. We investigate how asymmetry among private firms affects the optimal degree of privatization. We propose the simplest and natural model formulation to discuss asymmetry among private firms. We find that the optimal degree of privatization is either nonmonotone or monotonically increasing, and thus never monotonically decreasing, in asymmetry among private firms.     

Fiscal policy and fiscal reconstruction in Japan

This paper investigates the macroeconomic effect of fiscal policy and the fiscal reconstruction movement in Japan. I first summarize Japanese fiscal policy in the recent years and discuss sustainability of government deficits. Then, I investigate the macroeconomic effect of Japanese fiscal policy and evaluate the plausibility of the Keynesian and non-Keynesian effects. I also analyze political constraints in the fiscal reconstruction attempts and the possibility of crowding-in effect of fiscal reform. Finally, I discuss some measures for the successful fiscal reconstruction reform in the near future. JEL Code H30 · H60     

Overlapping tax revenue,soft budget,and rent seeking

This paper investigates how the soft-budget constraint with grants from the central government to local governments tends to internalize the vertical externality of local public investment by stimulating local expenditure when both the central and local governments impose taxes on the same economic activities financed by public investment. The model incorporates the local governments’ rent-seeking activities in a multi-government setting. The soft-budget constraint is welfare deteriorating because it stimulates rent-seeking activities, although a soft-budget game may attain the first-best level of public investment.     

Payoff dominance and risk dominance in the observable delay game: a note

We examine whether the payoff dominant sequential-move (Stackelberg) outcome is realized when timing is endogenized. We adopt the observable delay game formulated by Hamilton and Slutsky [Games Econ Behav 2(1):29–46, 1990]. We find that if one sequential-move outcome is payoff dominant, either (i) the outcome both players prefer is the unique equilibrium; or (ii) two sequential-move outcomes are equilibria and the one both players prefer is risk dominant. In other words, no conflict between payoff dominance and risk dominance in the observable delay game exists, in contrast to other games such as (non pure) coordination games. We also find that even if one of two sequential-move outcomes is the unique equilibrium outcome in the observable delay game, it does not imply that the equilibrium outcome is payoff dominant to the other sequential-move outcome.      

环境公益诉讼与行政诉讼的原告适格——欧盟各国的发展情况

环境公益诉讼,尤其是行政诉讼中,原告适格问题是制度建设的重要事项。欧盟各国以《奥胡斯公约》及欧盟指令为轴心,通过各自的公益行政诉讼制度建设,如民众诉讼制度、制定特别法承认团体的原告适格,或通过扩大传统的利益概念,扩大法保护的对象等不同方式达到扩大原告适格的目的,实现公约所保障的司法参与权,使得司法保障成为环境政策中不可欠缺的制度性手段。     

Voluntary development of environmental management systems: motivations and regulatory implications

Encouraging firms to develop voluntarily more comprehensive environmental management systems (EMSs) is touted as a policy tool to augment mandatory environmental regulations. Using a unique dataset of environmental management practices of Japanese manufacturers and controlling for self-selection bias in survey responses, we find that proxies for regulatory pressures and consumer pressures are the most important factors that motivate firms toward more comprehensive EMSs. Despite the oft-claimed “voluntary” nature of EMS development, our results show that the government may have a role to play in both directly and indirectly affecting EMS development by firms.      

Profit-Enhancing Parallel Imports

We investigate competition between a domestic intellectual property right holder and a foreign imitator and consider how parallel imports affect their profits. We consider a two-country model. Country A is a developed country where intellectual property rights are highly protected, and country B is a developing country where protection is weak. The intellectual property right holder can sell the products for both markets while the imitator cannot export the products to country A. We find that permitting parallel imports can be beneficial for both players because it serves as a commitment device to soften price competition.     

A comparison of the Japanese and U.S. business cycles

This paper constructs a consistent set of quarterly Japanese data for the 1960–2002 sample period and compares properties of the Japanese and U.S. business cycles. We document some important differences in the adjustment of labor input between the two countries. In Japan most of the adjustment is in hours per worker of males and females and also in employment of females. In the U.S. most of the adjustment is in employment of both males and females. We formulate, estimate, and analyze a model that makes the distinction between the intensive and extensive margin and allows for gender differerences in labor supply. A weak empirical correlation between hours per worker and employment in Japanese data is a puzzle for our theory.     

Welfare properties of strategic R&D investments in Hotelling models

In linear-city models, if firms are allowed (not allowed) to locate outside the linear city, they engage in excessive (insufficient) R&D investments from the normative viewpoint. This implies that the feasible set of locations drastically affects their investments.     

Japanese fiscal reform: fiscal reconstruction and fiscal policy

This paper evaluates the recent movement of Japanese fiscal reform. We first summarize fiscal policy in 1990s. Then, we investigate several relevant topics of fiscal policy such as the macroeconomic impact of government debt and the sustainability problem. We then consider dynamic properties of fiscal reconstruction process by analyzing the dynamic game among various interest groups. This paper points out that the long-run structural reform is more important than the short-run Keynesian policy in Japan.