Working Papers
2010
September 1, 2010
Recent Credit Stagnation in the Mena Region: What to Expect? What Can Be Done?
Description: This paper examines the recent credit slowdown among Middle Eastern and North African (MENA) countries from three analytical angles. First, it finds that, similar to other regions and to its past history, a credit boom preceded the current slowdown, and that a protracted period of sluggish growth is likely going forward. Second, it uncovers a key role played by bank funding (deposit growth and external borrowing slowed considerably) but whose effect was frequently dampened by expansionary monetary policy. Third, bank-level fundamentals - capitalization and loan quality - helped to explain differences in credit growth across banks and countries.
September 1, 2010
Factor Immobility and Regional Impacts of Trade Liberalization Evidenceon Poverty From India
Description: This paper uses the 1991 Indian trade liberalization to measure the impact of trade liberalization on poverty, and to examine the mechanisms underpinning this impact. Variation in sectoral composition across districts and liberalization intensity across production sectors allows a difference-in-difference approach. Rural districts, in which production sectors more exposed to liberalization were concentrated, experienced slower decline in poverty and lower consumption growth. The impact of liberalization was most pronounced among the least geographically mobile, at the bottom of the income distribution, and in Indian states where inflexible labor laws impeded factor reallocation across sectors.
September 1, 2010
Performance of Fiscal Accounts in South Africa in a Cross-Country Setting
Description: This paper analyzes the cyclical fluctuations in South Africa in a cross-country context, and studies the impact of the output gap by controlling for export intensity, the debt burden, asset prices, and banking crises. Results show that South Africa’s revenue performance was outstanding during the mid-2000s, and the recent decline in revenue was one of the least among the emerging and advanced markets. Results on the elasticity of tax revenue show that South Africa’s elasticity is higher during business upturns, indicating good prospects for recovering the revenue lost during the global financial crisis.
September 1, 2010
International Reserve Adequacy in the Gambia
Description: This paper applies intertemporal models of precautionary saving to compute an optimal level of international reserves for The Gambia. The analysis focuses on current account shocks specific to a low-income economy with a significant import component and complements a more standard, rule-of-thumb reserve adequacy assessment. The results suggest a central range from 4.5 months to 7 months of imports, which is broadly aligned with the recent actual coverage. Notwithstanding parameter sensitivity, the simulations allow for more informed policy decisions that balance flexibility with a prudent approach to reserve use.
September 1, 2010
Mother, Can I Trust the Government? Sustained Financial Deepening: A Political Institutionsview
Description: Only a minority of countries have succeeded in establishing a developed financial system, despite widespread financial liberalization. Confronted with this finding, the political institutions view claims that sustained financial deepening is most likely to take place in institutional environments where governments effectively impose constraints on their own powers in order to create trust. This paper identifies over 200 post-1960 episodes of accelerations in financial development in a large cross-section of countries. We find that the likelihood of an acceleration leading to sustained financial development increases greatly in environments that have high-quality political institutions.
September 1, 2010
Commodity Windfalls, Polarization, and Net Foreign Assets: Panel Data Evidenceon the Voracity Effect
Description: This paper examines the effect that windfalls from international commodity price booms have on net foreign assets in a panel of 145 countries during the period 1970-2007. The main finding is that windfalls from international commodity price booms lead to a significant increase in net foreign assets, but only in countries that are homogeneous. In polarized countries, net foreign assets significantly decreased. To explain this asymmetry, the paper shows that in polarized countries commodity windfalls lead to large increases in government spending, political corruption, and the risk of expropriation, with no overall effect on GDP per capita growth. The paper's findings are consistent with theoretical models of the current account that have a built-in voracity effect.
September 1, 2010
Investment: Specific Technology Shocks and International Business Cycles: An Empirical Assessment
Description: In this paper, we first introduce investment-specific technology (IST) shocks to an otherwise standard international real business cycle model and show that a thoughtful calibration of them along the lines of Raffo (2009) successfully addresses the "quantity", "international comovement", "Backus-Smith", and "price" puzzles. Second, we use OECD data for the relative price of investment to build and estimate these IST processes across the U.S and a "rest of the world" aggregate, showing that they are cointegrated and well represented by a vector error correction model (VECM). Finally, we demonstrate that when we fit such estimated IST processes in the model instead of the calibrated ones, the shocks are actually not as powerful to explain any of the four montioned puzzles.
September 1, 2010
Why Does Bad News Increase Volatility and Decrease Leverage?
Description: The literature on leverage until now shows how an increase in volatility reduces leverage. However, in order to explain pro-cyclical leverage it assumes that bad news increases volatility. This paper suggests a reason why bad news is more often than not associated with higher future volatility. We show that, in a model with endogenous leverage and heterogeneous beliefs, agents have the incentive to invest mostly in technologies that become volatile in bad times. Together with the old literature this explains pro-cyclical leverage. The result also gives rationale to the pattern of volatility smiles observed in the stock options since 1987. Finally, the paper presents for the first time a dynamic model in which an asset is endogenously traded simultaneously at different margin requirements in equilibrium.
September 1, 2010
The Unequal Benefits of Fuel Subsidies: A Review of Evidence for Developing Countries
Description: This paper reviews evidence on the impact of fuel subsidy reform on household welfare in developing countries. On average, the burden of subsidy reform is neutrally distributed across income groups; a $0.25 decrease in the per liter subsidy results in a 6 percent decrease in income for all groups. More than half of this impact arises from the indirect impact on prices of other goods and services consumed by households. Fuel subsidies are a costly approach to protecting the poor due to substantial benefit leakage to higher income groups. In absolute terms, the top income quintile captures six times more in subsidies than the bottom. Issues that need to be addressed when undertaking subsidy reform are also discussed, including the need for a new approach to fuel pricing in many countries.
September 1, 2010
Optimal Price Indices for Targeting Inflation Under Incomplete Markets
Description: In models with complete markets, targeting core inflation enables monetary policy to maximize welfare by replicating the flexible price equilibrium. We develop a two-sector two-good new-Keynesian model to study the optimal choice of price index in markets with financial frictions. We find that, in the presence of financial frictions, a welfare-maximizing central bank should adopt flexible headline inflation targeting a target for headline CPI inflation with some weight on the output gap. These results are particularly relevant for emerging markets, where the share of food expenditures in total consumption expenditures is high and a large proportion of consumers are credit constrained.