By using the empirical likelihood (EL), we consider the construction of pointwise confidence intervals (CIs) for nonparametric nonlinear nonstationary regression models with nonlinear nonstationary heterogeneous errors. It is well known that the EL-based CI has attractive properties such as data...

This paper derives the asymptotic distribution of Tanaka's score statistic under moderate deviation from a unit root in a moving average model of order one or MA(1). We classify the limiting distribution into three types depending on the order of deviation. In the fastest case, the convergence...

This paper derives the asymptotic distribution of Tanaka's score statistic under moderate deviation from a unit root in a moving average model of order one or MA(1). We classify the limiting distribution into three types depending on the order of deviation. In the fastest case, the convergence...

Game theory presents a useful analytical tool for addressing the problem of international cooperation and the formation of institutions. We first examine four problems that must be solved to achieve international cooperation: the common knowledge problem, agreement problem, compliance problem,...

The Japanese Consumer Price Index (CPI) is considered to be upwardly biased. This paper estimated the Engel curve based on National Survey of Family Income and Expenditure data to measure the bias. The estimated bias for the period 1989 to 2004 was 0.53 percentage points per annum. Correcting...

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