I describe and defend the dollarization of Ecuador in 1999-2000 as a bottom-up phenomenon, an expression of consumer sovereignty by money-users, to which the government finally conceded. From that perspective I rebut common top-down (social planner) arguments against dollarization, and criticize...

This paper examines whether ESAF-supported programs during 1986-91 had significant independent effects on growth, inflation and the external debt service ratio. Econometric estimates of the Generalized Evaluation Estimator (GEE) identify statistically significant beneficial effects on output...

Theoretical models predict that countries with unchanged long-run savings preferences will respond to debt relief by running up new debts or by running down assets. And there are some signs that incremental debt relief over the past two decades has fulfilled those predictions. Debt relief is...

The international effort to meet the Millennium Development Goals by 2015 has given fresh prominence to the idea of poverty traps, a notion that was widely current in the 1950s. This idea, most actively promoted by economist Jeffrey Sachs, director of Columbia University's Earth Institute and...

The global crisis and the expansionary government reaction in many countries has revamped the attention of policy makers and academics on the growth effects of large public debts. Recent empirical studies investigate the impact of public debt on growth in advanced and emerging countries. This...

In principle, international financial institutions (IFIs) can use their leverage as creditors to prompt governments to undertake policy reform. Yet such lending has been frequently linked to unsustainable debt levels and little reform. This paper illustrates how the dual roles of IFIs as...

The authors of this article, Nicolas Firzli, WPC, David Weeks, AMNT, and the Hon. Nick Sherry, SEF, co-chaired the main financial roundtable during the COP21/Paris Agreement conference: the Paris Climate Finance Roundtable (CFR) , alongside Dr. Jeffrey Sachs, Director, Center for Sustainable...

I propose a novel channel of international risk sharing: the common currency channel. I theoretically show how the central bank of a currency union can use the common currency to insure member countries against consumption risk from idiosyncratic productivity shocks. A trade-off between risk...

The 1970s and early 1980s witnessed two main approaches to the analysis of monetary policy. The first is the early new classical approach of Lucas, based on the assumptions of rational expectations and market clearing. The second is the atheoretical econometrics of Sims' VAR program. Both have...

In this article, time-series models are developed to represent three alternative, potential monetary policy regimes as monetary policy returns to normal. The first regime is a return to the high and volatile inflation rate of the 1970s. The second regime, the one expected by most Federal Reserve...