How the law and the social norm interact with each other in the legalized modern society, whether the law completely replaces the pre-existing social norm or they coexist, and whether their interaction achieves an efficient system of social rules or there is innate inefficiency, have remained...

In June 2005, a questionnaire survey was sent to 9000 companies in the Kansai Area (Osaka, Kyoto and Hyogo), the second largest economic block in Japan, with 2041 companies responding. This article introduces the results of this questionnaire survey. The greatest feature of this study is that,...

This paper reexamines the paradoxical aspect of the electronic mail game (Rubinstein, 1989). The electronic mail game is a coordination game with payoff uncertainty. At a Bayesian Nash equilibrium of the game, players cannot achieve the desired coordination of actions even when a high order of...

Using a dynamic optimization model with status preference this paper shows that depending on the object of people's status preference an economy exhibits a completely opposite performance; permanent growth or persistent stagnation. If the object is a producible asset (viz. real capital), new...

This paper studies the incentive compatibility of solutions to generalized indivisible good allocation problems introduced by Sonmez (1999), which contain the well-known marriage problems (Gale and Shapley, 1962) and the housing markets (Shapley and Scarf, 1974) as special cases. In particular,...

After the 1990 Japanese stock market crash the Japanese economy began to stagnate whereas the U.S. economy began to expand, yet the yen tended to appreciate against the dollar. Such a phenomenon is difficult to explain in conventional models. This paper examines its mechanism using a two-country...

This paper studies allocation correspondences in the house allocation problems with collective initial endowments. We examine the implications of two axioms, namely quot;consistencyquot; and quot;unanimity.quot; Consistency requires the allocation correspondence be invariant under reductions of...

In the marriage problems (two-sided one-to-one matching problems), it is well-known that the weak core, the strong core and the set of stable matchings are all equivalent. This paper generalizes the above observation considering the G-weak core and the G-strong core. These are the core concepts...