This paper studies optimal capital-control and bank-reserve remuneration policy in an open economy with a banking channel and a collateral constraint that limits household debt by a fraction of income. It finds that the unregulated economy borrows too little relative to what is optimal...

We introduce a form of downward nominal wage rigidity that can vary in intensity across a continuum of labor varieties. The model delivers a static wage Phillips curve linking current wage inflation to current unemployment. For standard parameterizations, the dynamics of the model are...

About 20 percent of countries have in place dual, multiple, or parallel exchange rates. Exchange controls represent a form of distortionary commercial policy. We show that they can also deflate the real value of external public debt. We study an optimal taxation problem of a government with...

Much of the empirical literature on the natural rate of interest has focused on estimating its path. This paper addresses the question of how exogenous movements in the natural rate of interest affect aggregate activity and inflation in the short and long runs. To this end it proposes a...

To what extent is the recent spike in inflation driven by a change in its permanent component? We estimate a semi-structural model of output, inflation, and the nominal interest rate in the United States over the period 1900-2021. The model predicts that between 2019 and 2021 the permanent...

A salient characteristic of sovereign defaults is that they are typically accompanied by large devaluations. This paper presents new evidence of this empirical regularity known as the Twin Ds and proposes a model that rationalizes it as an optimal policy outcome. The model combines limited...

This paper establishes the existence of deterministic cycles in infinite-horizon open economy models with a flow collateral constraint. It shows that for plausible parameter configurations, the economy has a unique equilibrium exhibiting deterministic cycles in which periods of debt growth are...

We estimate an empirical model of exchange rates with transitory and permanent monetary shocks. Using monthly post-Bretton-Woods data from the United States, the United Kingdom, and Japan, we report four main findings: First, there is no exchange rate overshooting in response to either temporary...