We model the stock market as a timing game, in which arbitrageurs who are not expected to be certainly rational compete over profit by bursting the bubble caused by investors' euphoria. The manager raises money by issuing shares and the arbitrageurs use leverage. If leverage is weakly regulated,...

The management and monitoring of very large portfolios of financial assets are routine for many individuals and organizations. The two most widely used models of conditional covariances and correlations in the class of multivariate GARCH models are BEKK and DCC. It is well known that BEKK...

We propose a computationally feasible inference method infinite games of complete information. Galichon and Henry (2011) and Beresteanu, Molchanov, and Molinari (2011) show that such models are equivalent to a collection of moment inequalities that increases exponentially with the number of...

We derive the empirical content of an instrumental variables model of sectorial choice with binary outcomes. Assumptions on selection include the simple, extended and generalized Roy models. The derived bounds are nonparametric intersection bounds and are simple enough to lend themselves to...

For estimating the integrated volatility by using high frequency data, Kunitomo and Sato (2008, 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 asymptotic...

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...

This is a translation of Cassel's "Socialpolitik"(1902). Today this book is almost forgotten even in Sweden. But it had a great influence on public opinion in those days. We should pay attention to following four points in Cassel's discussion in this book. 1) Cassel criticizes (Manchester)...