This paper characterizes the optimal transaction tax in an equilibrium model of competitive financial markets. As long as investors hold heterogeneous beliefs that are not related to their fundamental trading motives and the planner calculates welfare using any single belief, a strictly positive...

This paper offers a framework for regulating internalities. Using a simple economic model, we provide four principles for designing and evaluating behaviorally-motivated policy. We then outline rules for determining which contexts reliably reflect true preferences and discuss empirical...

We study time-consistent bank resolution mechanisms. When interventions are ex post efficient, a government cannot commit not to inject capital into the banking system. Contrary to common wisdom, we show that the government may still avoid moral hazard and implement the first best allocation by...

We examine how financial crises redistribute risk, employing novel empirical methods and micro data from the largest financial crisis of the 20th century - the Great Depression. Using balance-sheet and systemic risk measures at the bank level, we build an econometric model with incidental...

Financial safety nets are incomplete social contracts that assign responsibility to various economic sectors for preventing, detecting, and paying for potentially crippling losses at financial institutions. This paper uses the theories of incomplete contracts and sequential bargaining to...

This paper studies the international experience with securities transaction taxes (STTs), using the Swedish and British systems as case studies. We argue that STTs are best thought of as taxes on different resources used in transactions: domestic brokerage services in the case of Sweden, and...

We estimate the impact of coups and top-secret coup authorizations on asset prices of partially nationalized multinational companies that stood to benefit from US-backed coups. Stock returns of highly exposed firms reacted to coup authorizations classified as top-secret. The average cumulative...

Over the last decade dealing in derivative financial instruments (basically forwards, futures, options and combinations of these), particularly in the over-the-counter (OTC) derivatives market has become a central activity for major wholesale banks and financial institutions. Measured in terms...