Voluntary Export Restraints and Economic Welfare: A General Equilibrium Analysis

We derive some sufficient conditions for the Suzumura-Ishikawa proposition on voluntary export restraints to hold when their model is extended to a general equilibrium framework. The sufficient conditions are concerned with the magnitude of income effects which play no role in the partial-equilibrium analysis of Suzumura and Ishikawa.     

Postgraduate Education and Labor Market Outcomes: An Empirical Analysis Using Micro Data from Japan

Using a large micro dataset from Japan, this paper provides evidence on the relationship between postgraduate education and labor‐market outcomes. According to the analysis, the key findings include: (1) The employment‐to‐population rates of females and elderly people with postgraduate educations are higher than those with undergraduate educations. (2) The postgraduate wage premium relative to undergraduates is approximately 30–40 percent, which is similar in magnitude for male and female workers. (3) The wage reduction after age 60 is less for workers with a postgraduate education. (4) The private rate of return to postgraduate education exceeds 10 percent.     

Market Structure and Factor Price Equalization

There is a widespread belief that factor price equalization is "less likely" if some industries are imperfectly competitive and, in particular, that this is so if some industries are under the control of strategy-playing oligopolists. However, it is shown that, if each category of oligopolists is recognized as a primary factor of production, then the dimensionality of the set of endowments compatible with factor price equalization is independent of market structure.
JEL Classification Numbers: D33, D43, F12, L13.     

Dual Labor Markets and Trade Reform in China

This paper specifically models rigidities in the labor market in China and analyzes the effect of labor market liberalization on economic growth using a computable general equilibrium (CGE) model. Our results indicate that labor market reforms are essential to the realization of significant gains from China's accession in November 2001 to the World Trade Organization (WTO). In the absence of labor market reform, the gains to accession to the WTO are estimated to be minimal.     

Conjoint analysis of demand for IP telephony: the case of Japan

With the recent diffusion of broadband (BB) services, Internet protocol (IP) telephony is expected to spread significantly in Japan. This article investigates the demand for IP telephony by using conjoint analysis. Projecting IP telephony demand also contributes to Japanese info-communication policy discussions. Two points are made. First, IP telephony is still currently considered an optional supplement or an add-on service option of high-speed BB Internet access services in Japan rather than a close substitute of existing plain old telephone service (POTS). At this point, we find little evidence that many households will promptly forsake their fixed line service for IP telephony. Second, we conclude that the key condition for the proliferation of IP telephony is the complete guarantee of quality of service (QoS), including voice quality, number portability, fax usage and emergency access, comparable to or exceeding that of existing POTS.     

The Torrens–Ricardo Principle of Comparative Advantage: an Extension*

The Torrens–Ricardo Principle of Comparative Advantage rests on the special assumptions that, both in autarky and under free trade, all countries can produce all commodities and that, in autarkic equilibrium, each country consumes all producible commodities, at least incipiently. We reformulate the Principle to accommodate alternative assumptions. In our reformulation the emphasis is on marginal rates of substitution, not on the traditional marginal rates of transformation in production. It is shown in effect that, in existing formulations, the supply side is assigned a role that it can rarely sustain.