We start by documenting large differences in bitcoin prices across exchanges located in different countries, or for different fiat currency pairs. For the most reputable exchanges, and after carefully accounting for all the transaction costs and limitations to trade, we find that costly...

In his Berkshire Hathaway annual newsletter to investors c.20 years ago, Warren Buffett while discussing the Long Term Capital Management LTCM and Enron collapses, famously called derivatives: "financial weapons of mass destruction, carrying dangers that, while now latent, are potentially...

The Japanese zero-interest rate period provides a “natural experiment” for investigating the effectiveness and transmission channels of sterilized intervention when traditional monetary policy options are constrained. This paper takes advantage of the fact that all interventions in the...

The main objective of this paper is to investigate the diversification role of currency momentum for carry trade crashes during the turbulent periods surrounding the 1997-1998 Asian financial crisis and the 2007-2008 global financial crisis. The motivation is to use an important tendency of...

This paper provides an empirical investigation of transmission channels of central bank foreign exchange intervention when interest rates are zero and traditional monetary policy options are constrained. The paper develops empirically testable hypotheses regarding the functioning of the...

Based on the theory of static replication of variance swaps we assess the sign and magnitude of variance risk premiums in foreign exchange markets. We find significantly negative risk premiums when realized variance is computed from intraday data with low frequency. As a likely consequence of...

DeMiguel, Garlappi, and Uppal (Review of Financial Studies, 22 (2009), 1915-1953) showed that in the stock market, it is difficult for an optimized portfolio constructed using mean-variance analysis to outperform a simple equally-weighted portfolio because of estimation error. In this paper, we...

This document contains supporting material for the following article: Tim Kroencke, Felix Schindler and Andreas Schrimpf (2012), "International Diversification Benefits with Foreign Exchange Investment Styles".This paper studies portfolio choice with popular foreign exchange (FX) investment...

We examine the role of emerging markets in providing currency diversification benefits. We use global sectoral portfolios for developed and emerging markets. Our empirical tests based on a conditional international asset pricing model show that on average the prices of currency risks are very...

Past trends in fundamentals linked to economic activity and inflation predict currency returns. We find that a trading strategy that goes long currencies with strong economic momentum and short currencies with weak economic momentum exhibits an annualized Sharpe ratio of 0.70 and yields a...