This paper examines the economic consequences of a horizontal merger between Korean automakers that took place in 1998, with a particular emphasis on export market behavior. Estimates of structural demand and supply reveal that the merger enhanced production efficiency of the merged party by 6.3...

Because of the unstable financial market after World War I, the Japanese financial system experienced a wave of bank mergers, which resulted in an increase in bank scale and the development of branch banking. In this paper, we explored the implications of the expansion of branch banking, using...

This paper develops a new approximation formula for pricing basket options in a local-stochastic volatility model with jumps. In particular, the model admits local volatility functions and jump components in not only the underlying asset price processes, but also the volatility processes. To the...

We propose an information criterion which measures the prediction risk of the predictive density based on the Bayesian marginal likelihood from a frequentist point of view. We derive the criteria for selecting variables in linear regression models by putting the prior on the regression...

For estimating the integrated volatility and covariance by using high frequency data, Kunitomo and Sato (2011, 2013) have proposed the Separating Information Maximum Likelihood (SIML) method when there are micro-market noises. The SIML estimator has reasonable nite sample properties and...

‘Abenomics' refers to a new unconventional economic policy regime in Japan since late 2012. It consists of the three arrows: unconventional monetary policy (the first arrow), expansionary fiscal policy (the second arrow), and economic growth strategies to encourage private investment (the...

In this paper, we explore whether unconventional monetary policy in Japan had a negative spillover effect on the rest of the world. After Prime Minister Abe advocated the new policy regime, the Japanese yen depreciated substantially which raised a concern that it would have a beggar-thy-neighbor...

The problem of estimating the large covariance matrix of both normal and non-normal distributions is addressed. In convex combinations of the sample covariance　matrix and the identity matrix multiplied by a scalor statistic, we suggest a new　estimator of the optimal weight based on...