Sectoral Price Movements under the Yen Appreciation

This paper analyzes the movements of tradable goods prices in Japan. The import price indices and the export price indices are matched with the domestic wholesale price indices at the most detailed level available for Japan, and the pricing behavior in the yen appreciation period (1985–1995) is examined. In the import-side analysis, we investigate how far the price movements under currency appreciation deviate from the law of one price. We find that internal–external price differentials have surprisingly expanded for most of the products since 1985. For a number of commodities, the import prices do not decline as far as the exchange rate appreciates, and the domestic wholesale prices do not decrease as far as the import prices decline. Although the expanded price gaps cannot necessarily be interpreted as a result of deliberate trade barriers, they suggest that some sort of handicap is imposed on imported goods and the large fraction of rent generated by the yen appreciation is intercepted in the middle. In the export-side analysis, the relationship between the globalization of firms' activities and export pass-through is investigated. Our cross-sectional regression analysis indicates that the export path-through rates tend to be low when the value added ratios of foreign production of Japanese firms are high. Low export pass-through under currency appreciation is often interpreted as a result of firms' attempts to keep their foreign market share, but the globalization of firms' activities may be another important factor in lowering the pass-through.J. Japan Int. Econ.,December 1997,11(4), pp. 611–641. Department of Economics, Keio University, 2-15-45 Mita, Minato-ku, Tokyo 108, Japan.     

Technological Progress by Small and Medium Enterprises in Japan

This paper examines various aspects of total factor productivity across different firm sizes in Japan. It shows that larger firms have higher total factor productivity levels and growth than smaller firms. There are, however, some exceptions to this pattern especially in the electric machinery sector where small firms tend to have the edge. The paper also finds that two distinctive characteristics of small and medium firms, the practice of subcontracting and the use of external patents, are positively related to total factor productivity growth while the availability of subsidized public loans is not.     

A multivariate Lévy process model with linear correlation

In this paper, we develop a multivariate risk-neutral Lévy process model and discuss its applicability in the context of the volatility smile of multiple assets. Our formulation is based upon a linear combination of independent univariate Lévy processes and can easily be calibrated to a set of one-dimensional marginal distributions and a given linear correlation matrix. We derive conditions for our formulation and the associated calibration procedure to be well-defined and provide some examples associated with particular Lévy processes permitting a closed-form characteristic function. Numerical results of the option premiums on three currencies are presented to illustrate the effectiveness of our formulation with different linear correlation structures.     

A Model Forecasting Risk for Emerging Market Currencies

In this paper, we propose a risk forecasting model for emerging market currencies. Our model is based on the Markov regime switch which is constructed by exploiting daily equity market information, and we show that our model outperforms the existing model using macroeconomic information. We evaluate it by the performance measures, the goodness-of-fit and the Wilcoxon rank-sum test.     

Did Japan's shopping coupon program increase spending?

In March 1999, 31 million “shopping coupons” worth 20,000 yen each were distributed to Japanese families with children and to the elderly. The coupons expired after six months and could only be used within the recipient's local community. We use variation in the number of children across families and in the number of recipients across prefectures to measure the effect of the coupons on spending. We find that coupons had a positive effect on spending on semi-durables, but no effect on spending on nondurables or services. The marginal propensity to consume on semi-durables was 0.1–0.2 when the coupons were distributed in March. The results using regional variation provide stronger evidence that spending did not fall after the coupons had been redeemed.     

Nonstationarity of Real Exchange Rates in the G7 Countries: Are They Cointegrated with Real Variables?

Using monthly data for the G7 countries in the post-Bretton Woods floating rate period, this paper demonstrates that almost all bilateral real exchange rates have unit roots and, hence, are nonstationary. Consequently, it rejects simple PPP as a long-run relationship. The paper also shows that many of these real exchange rates are cointegrated with other real economic variables such as relative labor productivity, terms-of-trade ratios, real trade balance ratios, and long-term real interest rate differentials. In particular, relative labor productivity is statistically significant with the correct sign for more than half of the country pairs for which cointegration is confirmed. This finding lends support to the Balassa–Samuelson productivity-bias hypothesis. These results imply that nonstationarity of real exchange rates and the consequent rejection of simple PPP can be consistent with the notion that real exchange rates revert to an equilibrium in the long run without deviating arbitrarily far from this equilibrium position.J. Japan. Int. Econ.,December 1997, pp. 523–547. Institute of Social Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan, and Faculty of Business and Commerce, Meiji University, 1-1 Kanda, Surugadai, Chiyada-ku, Tokyo 101, Japan.