Working Papers
2011
February 1, 2011
Limits of Floating Exchange Rates: the Role of Foreign Currency Debt and Import Structure
Description: A traditional argument in favor of flexible exchange rates is that they insulate output better from real shocks, because the exchange rate can adjust and stabilize demand for domestic goods through expenditure switching. This argument is weakened in models with high foreign currency debt and low exchange rate pass-through to import prices. The present study evaluates the empirical relevance of these two factors. We analyze the transmission of real external shocks to the domestic economy under fixed and flexible exchange rate regimes for a broad sample of countries in a Panel VAR and let the responses vary with foreign currency indebtedness and import structure. We find that flexible exchange rates do not insulate output better from external shocks if the country imports mainly low pass-through goods and can even amplify the output response if foreign indebtedness is high.
February 1, 2011
Growth in Africa Under Peace and Market Reforms
Description: Economic stagnation in Sub-Saharan Africa (SSA) has led several economists to question the region’s ability to attain sustained economic growth, some of them arguing for the need to shift away from natural resource - based exports. Yet, we find that low growth has not been common to all SSA countries and that those that achieved political stability and significantly liberalized their economies experienced high growth in income per capita, as high as ASEAN-5 countries. This group of SSA countries attained high growth while maintaining their specialization in natural resource exports. Our analysis also rejects the hypothesis of reverse causality: that good growth performance allowed countries to attain political stability or liberalize their economies.
February 1, 2011
Central Bank Balances and Reserve Requirements
Description: Most central banks oblige depository institutions to hold minimum reserves against their liabilities, predominantly in the form of balances at the central bank. The role of these reserve requirements has evolved significantly over time. The overlay of changing purposes and practices has the result that it is not always fully clear what the current purpose of reserve requirements is, and this necessarily complicates thinking about how a reserve regime should be structured. This paper describes three main purposes for reserve requirements - prudential, monetary control and liquidity management - and suggests best practice for the structure of a reserves regime. Finally, the paper illustrates current practices using a 2010 IMF survey of 121 central banks.
February 1, 2011
What Drives the Performance of Selected MENA Banks? A Meta-Frontier Analysis
Description: This study examines the effect of financial-sector reform on bank performance in selected Middle Eastern and North African (MENA) countries in the period 1994 -2008. We evaluate bank efficiency in Egypt, Jordan, Morocco, Lebanon and Tunisia by means of Data Envelopment Analysis (DEA) and we employ a meta-frontier approach to calculate efficiency scores in a cross-country setting. We then employ a second-stage regression to investigate the impact of institutional, financial, and bank specific variables on bank efficiency. Overall, the analysis shows that, despite similarities in the process of financial reforms undertaken in the five MENA countries, the observed efficiency levels of banks vary substantially across markets, with Morocco consistently outperforming the rest of the region.Differences in technology seem to be crucial in explaining efficiency differences. To foster banking sector performance, policies should be aimed at giving banks incentives to improve their risk management and portfolio management techniques. Improvements in the legal system and in the regulatory and supervisory bodies would also help to reduce inefficiency.
February 1, 2011
Conformism and Public News
Description: We study a model where investment decisions are based on investors’ information about the unknown and endogenous return of the investment. The information of investors consists of endogenously determined messages sold by financial analysts who have access to both public and private information on the return of the investment. We assume that the return of the investment is correlated with the aggregate investment. This results into a beauty contest among analysts (or a "conformism" effect). In equilibrium, analysts sell all the information they have to all the investors. A striking result is that there are sometimes multiple equilibria. There are equilibria where the beauty contest is exacerbated. Because of the correlation across analysts' information sources, not all the information available in the economy is transmitted to investors.
February 1, 2011
Classifications of Countries Basedon their Level of Development: How it is Done and How it Could Be Done
Description: The paper analyzes how the UNDP, the World Bank, and the IMF classify countries based on their level of development. These systems are found lacking in clarity with regard to their underlying rationale. The paper argues that a country classification system based on a transparent, data-driven methodology is preferable to one based on judgment or ad hoc rules. Such an alternative methodology is developed and used to construct classification systems using a variety of proxies for development attainment.
February 1, 2011
An Estimated Dynamic Stochastic General Equilibrium Model of the Jordanian Economy
Description: This paper presents and estimates a small open economy dynamic stochastic general-equilibrium model (DSGE) for the Jordanian economy. The model features nominal and real rigidities, imperfect competition and habit formation in the consumer’s utility function. Oil imports are explicitly modeled in the consumption basket and domestic production. Bayesian estimation methods are employed on quarterly Jordanian data. The model’s properties are described by impulse response analysis of identified structural shocks pertinent to the economy. These properties assess the effectiveness of the pegged exchange rate regime in minimizing inflation and output trade-offs. The estimates of the structural parameters fall within plausible ranges, and simulation results suggest that while the peg amplifies output, consumption and (price and wage) inflation volatility, it offers a relatively low risk premium.
February 1, 2011
Global Shocks and their Impacton Low-Income Countries: Lessons From theglobal Financial Crisis
Description: 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.
February 1, 2011
Reversing the Financial Accelerator: Credit Conditions and Macro-Financial Linkages
Description: This paper examines the role of credit markets in the transmission of U.S. macro-financial shocks through the prism of a financial conditions index (FCI) based on a vector autoregression (VAR) methodology. It explores the relative predictive power of market variables compared to credit standards/conditions. The main conclusion is that under plausible specifications credit conditions dominate market variables, highlighting the importance of credit supply. The fact that direct measures of credit conditions anticipate future movements in asset prices has an extremely important implication. Most models of the credit channel see it as an amplifier of underlying changes in financial wealth. The impact of credit conditions on growth compared to other market variables implies that credit supply drives other financial variables rather than responding to them.
February 1, 2011
Overborrowing, Financial Crises and ‘Macro-prudential’ Policy
Description: This paper studies overborrowing, financial crises and macro-prudential policy in an equilibrium model of business cycles and asset prices with collateral constraints. Agents in a decentralized competitive equilibrium do not internalize the negative effects of asset fire-sales on the value of other agents' assets and hence they borrow too much" ex ante, compared with a constrained social planner who internalizes these effects. Average debt and leverage ratios are slightly larger in the competitive equilibrium, but the incidence and magnitude of financial crises are much larger. Excess asset returns, Sharpe ratios and the market price of risk are also much larger. State-contigent taxes on debt and dividends of about 1 and -0.5 percent on average respectively support the planner’s allocations as a competitive equilibrium and increase social welfare.