This paper presents a simple macroeconomic model where government spending affects aggregate demand directly and indirectly, through an expectational channel. Prices are fully flexible and the model is static, so intertemporal issues play no role. There are three important elements in the model:...

This paper proposes a simple macroeconomic model with staggered investment decisions. The expected return from investing depends on demand expectations, which are pinned down by fundamentals and history. Owing to an aggregate demand externality, investment subsidies can improve welfare in this...

Motivated by a novel stylized fact -- countries with isolated capital cities display worse quality of governance -- we provide a framework of endogenous institutional choice based on the idea that elites are constrained by the threat of rebellion, and that this threat is rendered less effective...

Institutions that serve the interests of an elite are often cited as an important reason for poor economic performance. This paper builds a model of institutions that allocate resources and power to maximize the payoff of an elite, but where any group that exerts sufficient fighting effort can...

This paper studies how constraints on the timing of actions affect equilibrium in intertemporal coordination problems. We show that while the possibility of waiting longer for others'’ actions helps agents to coordinate in the good equilibrium, the option of delaying one’s' actions harms...

The provision of liquidity by international institutions such as the IMF to countries experiencing balance of payment problems could prevent liquidity runs but could also cause moral hazard distortions: expecting to be bailed out by the IMF, debtor countries would have weak incentives to...

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...

If currency crises are triggered when the currency overvaluation hits a threshold, the expected magnitude of a devaluation, conditional on its occurrence, is substantially different from the unconditional expected currency overvaluation. That is not true if currency crises are triggered by...

This paper analyses whether sovereign default episodes can be seen as contingencies of optimal international lending contracts. The model considers a small open economy with capital accumulation and without commitment to repay debt. Taking first order approximations of Bellman equations, I...

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