The empirical objective of this study is to account for the time-variation the covariances between markets. Using data on sixteen national stock markets, we estimate a multivariate factor model in which the volatility of returns is induced by changing volatility in the orthogonal factors. Excess...

This paper investigates why, in October 1987, almost all stock markets fell together despite widely differing economic circumstances. The idea is that quot;contagionquot; between markets occurs as the result of attempts by rational agents to infer information from price changes in other markets....

We argue that there are sound theoretical reasons for believing that an inflation targeting central bank might improve macroeconomic performance by reacting to asset price misalignments over and above the deviation of, say, a two-year ahead inflation forecast from target. In this paper, we first...

Over the last decade increasing use has been made of individual householddata to analyse the gains and losses from tax reform. Much attention hasbeen paid to the econometric estimation of models of household responses totaxes. But these models yield valid estimates of the welfare consequencesof...

This working paper presents Chapter 7 of a book to be published for the National Bureau of Economic Research by the University of Chicago Press. The point of the book is to compare taxes on income from capital in four countries,accounting for corporate, personal, and property taxes, and...

This working paper presents Chapter 2 of a book that has been submitted to the University of Chicago Press for publication consideration. The point of the book is to compare taxes on income from capital infour countries,accounting for corporate, personal, and property taxes, and including...

In section 1.2 we shall examine the optimal taxation of capital and labor incomes in a simple growth model and derive formulae for the optimal tax rates. These are used in section 1.3 to evaluate claims that abolishing capital income taxes would lead to large welfare gains. Inflation is...

I argue that it is useful to think about the optimal design of monetary institutions using the insights from the theory of incomplete contracts. The core of the monetary policy problem is the uncertainty about future social decisions resulting from the impossibility and the undesirability of...

Over the past couple of decades, and especially since the financial crisis in 2008-09, real interest rates have collapsed. For much of the past two years they have been negative, but they have been trending down for some while. But how far have real rates fallen? This note computes a measure of...

This paper presents a model in which the realizations of stochastic tax and depreciation rates determine both the level and growth rate of output: externalities to investment - learning by watching - are characterized by diminishing returns, yielding a nonlinear "technical progress function"....