Under what conditions should grants be preferred to loans? To answer this question, we present a simple model agrave; la Krugman (1988) and show that, for any given level of developmental assistance, the optimal degree of loan concessionality is positively associated with economic growth if...

Do Highly Indebted Poor Countries (HIPCs) suffer from a debt overhang? Is debt relief going to improve their growth rates? To answer these important questions, we look at how the debt-growth relationship varies with indebtedness levels and other country characteristics in a panel of developing...

To cope with the self-fulfilling liquidity runs that triggered many recent financial crises, we propose the creation of a country insurance facility. The facility, which we envisage as complementary to the existing multilateral lending facilities, would provide eligible countries with automatic...

We analyze price competition between dealers in a security market where the bidding process is sequential. The model provides an interpretation for the evolution of the best ask and bid prices, in-between transactions. We find that convergence to the competitive ask and bid prices can take time....

The World Bank Group recently adopted the "cascade framework" to "maximize finance for development." The cascade recommends that reforms be tried first, followed by subsidies, and then public investments. To understand the economics of the cascade, this paper presents a model where reforms,...

This paper computes a new financial globalization index for a large sample of countries for 1992-2016. Unlike other measures, the financial globalization index corrects for the heteroscedasticity of global volatility. This leads to a downward adjustment of financial globalization trends for...

This paper presents a model of bank risk taking and government guarantees. Levered banks take excessive risk, as their actions are not fully priced at the margin by debt holders. The impact of government guarantees on bank risk taking depends critically on the portion of bank investors that can...

Why should countries buy expensive catastrophe insurance? Abstracting from risk aversion or hedging motives, this paper shows that catastrophe insurance may have a catalytic role on external finance. Such effect is particularly strong in those middle-income countries that face financial...

The standard macro(prudential) models focus on externalities and treat all prudential instruments as alternative, but equivalent, forms of Pigouvian taxes. This paper explicitly models individual banks' risk choices and shows that different prudential instruments affect banks' risk-taking...