A striking fact about pricing is the prevalence of \sales": large temporary price cuts followedby prices returning exactly to their former levels. This paper builds a macroeconomic modelwith a rationale for sales based on firms facing customers with different price sensitivities.Even if firms...

Market participants' risk attitudes, wealth and portfolio composition influence their positions in apegged foreign currency and, therefore, may have important effects on the sustainability of currencypegs. We analyze such effects in a global game model of currency crises with continuous...

This paper studies a dynamic model of crises with timing frictions that combines the mainaspects of Morris and Shin (1998) and Frankel and Pauzner (2000). The usual arguments forexistence and uniqueness of equilibrium cannot be applied. It is shown that the model has aunique equilibrium within...

This paper analyzes the trade-off between official liquidity provision and debtor moral hazard ininternational financial crises. In the model, crises are caused by the interaction of bad fundamentals,self-fulfilling runs and policies by three classes of optimizing agents: international...

We empirically analyse the appropriateness of indexing emerging market sovereign debt to USreal interest rates. We find that policy-induced exogenous increases in US rates raise default riskin emerging market economies, as hypothesised in the theoretical literature. However, we also findevidence...

This paper analyses predictions of a simple model of currency crises in which the peg will beabandoned when the currency overvaluation hits a certain threshold, unknown to the agents. Due tolearning about the threshold, some features usually observed in the data and identified with modelswith...

In a country with high probability of default, higher interest rates may render the currency lessattractive if sovereign default is costly. This paper develops that intuition in a simple model andestimates the effect of changes in interest rates on the exchange rate in Brazil using data from...

There is much evidence that price-adjustment frequencies vary widely across industries. This paper shows that inflation persistence is lower with heterogeneity in price stickiness than without it, taking as given the degree of persistence in variables affecting inflation. Differences in the...

This paper analyses optimal monetary policy in response to shocks using a model that avoids making specific assumptions about the stickiness of prices, and thus the nature of the Phillips curve. Nonetheless, certain robust features of the optimal monetary policy commitment are found. The optimal...

A striking fact about prices is the prevalence of ``sales'': large temporary price cuts followed by a return exactly to the former price. This paper builds a macroeconomic model with a rationale for sales based on firms facing consumers with different price sensitivities. Even if firms can vary...