Recent research has shown that relaxing the assumptions of complete informationand common knowledge in exchange rate models can shed light on a wide range ofimportant exchange rate puzzles. In this chapter, we review a number of models wehave developed in previous work that relax the strong...

This paper studies how liability dollarization conditions the effectof exchange rate exibility on growth. It develops a model with creditconstrainedrms facing liquidity shocks denominated in tradables while theirrevenues are both in tradable and nontradables. With frictions in the...

According to the Balassa-Samuelson e¤ect, productivity gains in the domestic tradable sectorraise the relative price of domestic non-tradables causing deviations from the purchasing powerparity. In the literature, the Balassa-Samuelson e¤ect is typically invoked to explain the Penne¤ect,...

We develop a general equilibrium model with intermediaries at the heart of international financial markets. In our model, intermediaries bargain with their customers and extract rents for providing access to foreign claims. The behavior of intermediaries, by tilting state prices, generates an...

Despite the vast academic literature on modelling stochastic volatility, many finance practitioners still use the simple "RiskMetrics" approach of J. P. Morgan (1997), based on the exponentially weighted moving average (EWMA) volatility combined with the $\sqrt{h}$-rule for scaling volatility...

We develop a general equilibrium model with intermediaries at the heart of international financial markets. Global intermediaries bargain with households and extract rents for providing access to foreign claims. The behavior of intermediaries, by tilting state prices, breaks monetary neutrality...

We propose a "debt view" to explain the dominant international role of the dollar and provide broad empirical support for it. Within a simple capital structure model in which firms optimally choose the currency composition of their debt, we derive conditions under which all firms issue debt in a...

Foreign exchange operates as a two-tiered over-the-counter (OTC) market dominatedby large, strategic dealers. Using proprietary high frequency data on quotesby the largest foreign exchange dealer banks in the dealer-to-customer (D2C) market,we find a significant heterogeneity in their behavior....