We consider the problem of choosing two bandwidths simultaneously for estimating the difference of two functions at given points. When the asymptotic approximation of the mean squared error (AMSE) criterion is used, we show that minimization problem is not well-defined when the sign of the...

Mobile money service in Uganda has expanded rapidly, penetrating as much as over 30 percent of the adult population in just four years since its inception. We investigate the impact of this financial innovation on household welfare, using household survey panel data from rural Uganda. Results...

Japan’s outstanding debt keeps increasing and there are concerns regarding its sustainability. Nevertheless, the financial market seems to be neglecting such concern. Its growing debt level and subdued general price level are not easy to explain from the fiscal theory of price level (FTPL)...

We analyze the economic impact on key sectors of a compound disaster in Taiwan. While Taiwan has high-tech export-oriented industries such as semiconductors and electronic products, three out of four nuclear power plants are located in the at-risk areas close to its capital city with industrial...

Experiments with family groups are rare, but since many decisions are taken at the household level or occur within the household it is an important area to investigate. I discuss some of the methodological challenges involved in doing experiments with couples and families and consider major...

Forward guidance or more specifically policy duration commitment invented and developed by the Bank of Japan has become an essential part of unconventional monetary policy instruments employed by modern central banks. This paper’s simple empirical analysis finds that the market believes or...

Educational investment involves risks and long-term commitment, and the degree of risk aversion or patience of parents could play a vital role in the schooling decision. Yet, there are few studies analyzing the impact of such preferences on educational investment. This paper utilizes a unique...

In order to shed new light on the methodology of empirical studies on factors relating to patent validity, this study uses criteria based on the difference of the scope of protection at the time of grant and after the challenge as the dependent variable, and includes some new and recently...

We investigate a long-run impact of a compound disaster in northern Taiwan by describing a recovery process from the disaster with a dynamic computable general equilibrium model. After simulating losses of capital and labor in combination with a nuclear power shutdown, we conduct policy...

This paper attempts to identify the monetary policy indicator that better explains the Sri Lankan monetary policy transmission mechanism. This study also estimates how shocks stemming from foreign monetary policy and/or oil price affect domestic macroeconomic variables. To that end, we use a...