This paper reflects on consequentialism which underlies the traditional normative economics. It asserts that the informational basis of normative economics should be expanded so that the intrinsic value of social choice procedures should be properly taken into account along with the value of...

We project the future trends of the japanese saving rates with special emphasis on an analysis of the consumption and saving behavior of the household sector. Notable feature of our modeling is that savings are divided into financial and real savings components. This approach is useful since the...

This paper looks at implementation in economic environments when agents have perfect information about the state of the world, but cannot commit not to renegotiate bad outcomes or to collude against each other. If renegotiation satisfies a weak condition of disagreement point monotonicity, then...

Succeeding Dutta, Sen and Vohra (1995) and Saijo, Tatamitani and Yamato (1997), we define two types of natural mechanisms quantity and price-quantity types, in convex production economies, and characterize the class of Pareto subsolutions doubly implementable in Nash and strong Nash equilibria...

This paper examines the implementation of two public ownership solutions in convex production economies with differentiable production functions. The two public ownership solutions we focus on are the proportional and equal benefit solutions. Two "natural" mechanisms which doubly implement the...

This paper estimates the contribution of net saving for each of twelve motives to overall household saving in Japan using micro data from Japanese Government survey and finds that the net saving for the retirement and precautionary motives, both of which are consistent with the life-cycle model,...

We use the framework of random matching games and develop a two society model to analyze the interaction of societies with different social norms. Each agent repeatedly faces two different coordination games. A social norm of a society is a mode of behavior - strategy - which is adopted by a...