In several Caribbean states, unregulated investment schemes grew quickly in recent years by claiming unusually high monthly returns and through a system of referrals by existing members. These are features shared with traditional Ponzi schemes and pyramid schemes. This paper describes the growth...

We examine the properties of alternative monetary policy rules in response to large aid surges in low-income countries characterized by incomplete capital market integration and currency substitution. Using a dynamic stochastic general equilibrium model, we show that simple monetary rules that...

Regressions in a number of recent papers written by staff members of the World Bank and the IMF rely on an interaction variable (IAV) to establish the effects of foreign aid on economic growth or the reduction of poverty. The common assumption in these papers is that if the coefficient of this...

Since the turn of the century, aid flows to Africa have increased on average and become more volatile. As a result, policymakers, particularly in post-stabilization countries where inflation has only recently been brought under control, have been increasingly preoccupied with how best to deploy...

Panel data on Ghanaian manufacturing firms are used to test predictions from models of irreversible investment under uncertainty. Information on the entrepreneur`s subjective probability distribution over future demand for the firm`s products is used to construct the expected variance of demand,...

This paper evaluates three models for predicting currency crises that were proposed before 1997. The idea is to answer the question: if we had been using these models in late 1996, how well armed would we have been to predict the Asian crisis? The results are mixed but somewhat encouraging. One...

We develop a multicountry model in which governments aim at excessive spending in order to serve the narrow interests of the group in power. This puts pressure on the monetary authorities to extract seigniorage, and thus affects the incentives countries would have to participate in a monetary...

This paper sets flight capital in the context of portfolio choice, focusing upon the proportion of private wealth that is held abroad. There are large regional differences in this proportion, ranging from 5 percent in South Asia to 40 percent in Africa. We explain cross-country differences in...

This paper examines the persistence of shocks to the terms of trade, using annual data on 42 Sub-Saharan African countries between 1960-96. We find that the persistence of terms of trade shocks varies widely for about half the countries such shocks are short-lived, while for one-third of the...

This paper assesses the non linear impact of external debt on growth using a large panel data set of 93 developing countries over 1969-98. Results are generally robust across different econometric methodologies, regression specifications, and different debt indicators. For a country with average...