Andrew Berg

Anticipating Balance of Payments Crises--The Role of Early Warning Systems; The Role of Early Warning Systems

Recent years have witnessed an increase in the frequency of currency and balance of payments crises in developing countries. More important, the crises have become more virulent, have caused widespread disruption to other developing countries, and have even had repercussions on advanced economies. To predict crises, their causes must be clearly understood. Two competing strands of theories are reviewed in this paper. The first focuses on the consequences of such policies as excessive credit growth in provoking depletion of foreign exchange reserves and making a devaluation enevitable. The second emphasizes the trade-offs between internal and external balance that the policymaker faces in defending a peg.

Full Dollarization : The Pros and Cons

Analyzes the costs and benefits of full dollarization, or the adoption by one country of another country’s currency. Potential advantages include lower borrowing costs and deeper integration into world markets. But countries lose the ability to devalue, and become dependent on the U.S. Compares with currency board option.

Some Misconceptions about Public Investment Efficiency and Growth

We reconsider the macroeconomic implications of public investment efficiency, defined as the ratio between the actual increment to public capital and the amount spent. We show that, in a simple and standard model, increases in public investment spending in inefficient countries do not have a lower impact on growth than in efficient countries, a result confirmed in a simple cross-country regression. This apparently counter-intuitive result, which contrasts with Pritchett (2000) and recent policy analyses, follows directly from the standard assumption that the marginal product of public capital declines with the capital/output ratio. The implication is that efficiency and scarcity of public capital are likely to be inversely related across countries. It follows that both efficiency and the rate of return need to be considered together in assessing the impact of increases in investment, and blanket recommendations against increased public investment spending in inefficient countries need to be reconsidered. Changes in efficiency, in contrast, have direct and potentially powerful impacts on growth: “investing in investing” through structural reforms that increase efficiency, for example, can have very high rates of return.

Global Shocks and their Impacton Low-Income Countries; Lessons From theglobal Financial Crisis

This paper investigates the short-run effects of the 2007-09 global financial crisis on growth in (mainly non-fuel exporting) low-income countries (LICs). Four conclusions stand out. First, for many individual LICs, 2009 was not extraordinarily calamitous; however, aggregate LIC output declined sharply because LICs were unusually synchronized. Second, the growth declines are on average well explained by the decline in export demand. Third, if the external environment facing LICs improves as forecast, their growth should rebound sharply. Finally, and contrary to received wisdom, there are few robust relationships between the cross-country growth variation and the policy and structural environment; the main exceptions are reserve coverage and labor-market flexibility.

Enhancing Development Assistance to Africa : Lessons from Scaling-Up Scenarios

The pace of progress toward achievement of the Millenium Development Goals (MDG) in many sub-Saharan African countries remains too slow to reach targets by 2015, despite significant progress in the late 1990s. The MDG Africa Steering Group, convened in September 2007 by the UN Secretary-General, designated 10 countries for pilot studies to investigate how existing national development plans would be impacted by scaled up development aid to Africa. This joint publication of the IMF and the United Nations Development Programme reports conclusions drawn from these pilot studies and summarizes country-specific results for Benin, the Central African Republic, Ghana, Liberia, Niger, Rwanda, Tanzania, Togo, Sierra Leone, and Zambia.

Modeling Sterilized Interventions and Balance Sheet Effects of Monetary Policy in a New-Keynesian Framework

We study a wide range of hybrid inflation-targeting (IT) and managed exchange rate regimes, analyzing their implications for inflation, output and the exchange rate in the presence of various domestic and external shocks. To this end, we develop an open economy new-Keynesian model featuring sterilized interventions in the foreign exchange (FX) market as an additional central bank instrument operating alongside the Taylor rule, and affecting the economy through portfolio balance sheet effects in the financial sector. We find that there can be advantages to combining IT with some degree of exchange rate management via FX interventions. Unlike pure IT or exchange rate management via interest rates, FX interventions can help insulate the economy against certain shocks, especially shocks to international financial conditions. However, managing the exchange rate through FX interventions may also hinder necessary exchange rate adjustments, e.g., in the presence of terms of trade shocks.

L'art difficile de prévoir les crises économiques

The integration of financial markets around the world over the past decade has posed new challenges for policymakers. The speed with which money can be switched in and out of currencies and countries has increased with the efficiency of global communications, considerably shortening the time policymakers have to respond to emerging crises. This pamphlet takes alook at attempts by economists to predict crises by developing early warning systems to signal when trouble may be brewing in currency markets and banking systems.