The problem of estimating the common regression coefficients is addressed in this paper for two regression equations with possibly different error variances. The feasible generalized least squares (FGLS) estimators have been believed to be admissible within the class of unbiased estimators. It...

Banks are recognized as playing an important role of monitoring borrowers, thereby reducing the agency costs associated with informational asymmetry. However, there remains an issue "who could monitor the banks", because it is difficult for outsiders to monitor banks' management. In particular,...

This paper discusses a novel estimation method for the residential gas demand function in Japan where the price per unit decreases as the demand exceeds certain thresholds. Such a price system is known as decreasing block rate pricing. The demand function under decreasing block rate pricing is...

Economic development in Southeast Asia has been associated with environmental degradation. Its cause is mainly attributed to rapid industrialization, coupled with urbanization and export growth, whereas the vicious circle of the poverty and the contamination is a minor case. The environmental...

The purpose of this paper is to examine the chronic poverty problems in Metro Manila, based on the NSO data and the participant observations in a squatters area. Indeed, we can recognize the improvement in the poverty incidence in M. M. during the 1990s, but the level of the alleviation may tend...

The purpose of this paper is to investigate how seasonal fluctuations in preference may change the dynamic stability and make multiple equilibria more likely outcome in a standard monetary economy. In the analysis, we investigate a model of money-in-the-utility function where real money balances...

This paper incorporates behavioral economics into implementation theory. We use mechanisms that are strictly detail-free. We assume that each agent dislikes telling a white lie when such lying does not serve her/his material interest. We present a permissive result wherein by using just a single...

We propose a new approach to model costly international trade, which includes the standard approach, the "iceberg" transport cost, as a special case. The key idea is to make the technologies of supplying the good depend on the destination of the good. To demonstrate our approach, we extend the...

This article deals with the empirical analyses of the growth for the United States and Japan from 1970 to 2005. Following our analysis in "Quantity or Quality: The Impact of Labor-saving Innovation on US and Japanese Growth Rates, 1960-2004" (March 2007), we applied the same method to a...

In this paper, we estimated the net agglomeration economies both in production side and in consumption side using Japanese city data around 1990, when interregional net migration nearly ceased. We showed that doubling city size increases that nominal wage about 10% while it decreases the real...