Working Papers
2008
August 1, 2008
Foreign Aid and Real Exchange Rate Adjustments in a Financially Constrained Dependent Economy
Description: A dynamic dependent-economy model is developed to investigate the role of the real exchange rate in determining the effects of foreign aid. If capital is perfectly mobile between sectors, untied aid has no longrun impact on the real exchange rate. A decline in the traded sector occurs because aid, being denominated in traded output, substitutes for exports in financing imports. While untied aid causes short-run real exchange appreciation, this response is very temporary and negligibly small. Tied aid, by influencing sectoral productivity, does generate permanent relative price effects. The analysis, which employs extensive numerical simulations, emphasizes the tradeoffs between real exchange adjustments, long-run capital accumulation, and economic welfare, associated with alternative forms of foreign aid.
August 1, 2008
Efficiency Costs of Myanmar’s Multiple Exchange Rate Regime
Description: Myanmar's multiple exchange rate system creates various economic distortions. This paper describes the exchange rate practices in Myanmar, develops a model of foreign exchange markets, and presents the efficiency costs imposed by quasi-fiscal operation under the current exchange rate regime. The results of our model-based analyses indicate that the equilibrium exchange rate under the unified market could be at around K 400-500 per U.S. dollar, and using the equilibrium exchange rate (instead of the official exchange rate) as the accounting rate increases trade openness to more than 20 percent from less than 1 percent measured by official statistics. The total efficiency loss caused by the current multiple exchange rate regime is estimated at about 14-17 percent of GDP in 2006/07.
August 1, 2008
Equilibrium Non-Oil Current Account Assessments for Oil Producing Countries
Description: This paper introduces a methodology for assessing external balance in countries with large stocks of non-renewable resources based on oil stock data, and applies it to selected oil producing countries. The methodology uses a stock approach (instead of the more traditional flow approach) to estimate the equilibrium non-oil current account consistent with optimal consumption smoothing. One of the benefits of the stock approach is that geological data for oil reserves can be used to estimate oil wealth; however, the methodology makes the estimated non-oil current account norm very sensitive to oil price projections. Based on an oil price about US$70 per barrel prevailing in the summer of 2007, the baseline estimates indicate that the non-oil current accounts for most of the countries in the sample are broadly in equilibrium. By the same token, using oil price projections as of the summer of 2008 implies large disparities between the equilibrium non-oil current account position and the medium term forecast for all countries in the sample except for Malaysia.
August 1, 2008
The Impact of Oil-Related Income on the Equilibrium Real Exchange Rate in Syria
Description: This paper examines the impact of oil-related income, among other fundamentals, on the equilibrium real effective exchange rate (ERER) in Syria. After reviewing the evolution of the Syrian multiple exchange rate regime since 1960 and assessing alternative measures for the exchange rate, the paper analyzes the impact of oil-related income on the ERER in the context of a behavioral equilibrium exchange rate model. The analysis concludes that ERER appreciates with higher oil-related income, productivity and net foreign assets, but, at odds with the conventional wisdom, depreciates with higher government expenditures given that an increase in expenditures usually translates into higher imports and weaker current account position. In light of the projected real shocks associated with the depletion of oil and the change in other fundamentals in the context of the ongoing transition to a market economy, a more flexible regime would serve Syria better in the future.
August 1, 2008
Pension Privatization and Country Risk
Description: This paper explores how privatizing a pension system can affect sovereign credit risk. For this purpose, it analyzes the importance that rating agencies give to implicit pension debt (IPD) in their assessments of sovereign creditworthiness. We find that rating agencies generally do not seem to give much weight to IPD, focusing instead on explicit public debt. However, by channeling pension contributions away from the government and creating a deficit of resources to cover the current pension liabilities during the reform's transition period, a pension privatization reform may transform IPD into explicit public debt, adversely affecting a sovereign's perceived creditworthiness, thus increasing its risk premium. In this light, accompanying pension reform with efforts to offset its transition costs through fiscal adjustment would help preserve a country's credit rating.
July 1, 2008
Real Effects of the Subprime Mortgage Crisis: Is it a Demand or a Finance Shock?
Description: We develop a methodology to study how the subprime crisis spills over to the real economy. Does it manifest itself primarily through reducing consumer demand or through tightening liquidity constraint on non-financial firms? Since most non-financial firms have much larger cash holding than before, they appear unlikely to face significant liquidity constraint. We propose a methodology to estimate these two channels of spillovers. We first propose an index of a firm's sensitivity to consumer demand, based on its response to the 9/11 shock in 2001. We then construct a separate firm-level index on financial constraint based on Whited and Wu (2006). We find that both channels are at work, but a tightened liquidity squeeze is economically more important than a reduced consumer spending in explaining cross firm differences in stock price declines.
July 1, 2008
Credit Growth in the Middle East, North Africa, and Central Asia Region
Description: Rapid private sector credit growth in the Middle East, North Africa, and Central Asia has been a result of strong economic growth, financial deepening, and banks’ willingness to explore consumer credit markets. Economic growth, the initial ratio of private sector credit to GDP, price volatility, and nonoil exports are found to be significant explanatory variables, while oil exports and spillovers from oil exporting neighbors were not found to have any significance. The credit growth has financed consumer spending and home ownership rather than investment.
July 1, 2008
Kernel Density Estimation Based on Grouped Data: The Case of Poverty Assessment
Description: We analyze the performance of kernel density methods applied to grouped data to estimate poverty (as applied in Sala-i-Martin, 2006, QJE). Using Monte Carlo simulations and household surveys, we find that the technique gives rise to biases in poverty estimates, the sign and magnitude of which vary with the bandwidth, the kernel, the number of datapoints, and across poverty lines. Depending on the chosen bandwidth, the $1/day poverty rate in 2000 varies by a factor of 1.8, while the $2/day headcount in 2000 varies by 287 million people. Our findings challenge the validity and robustness of poverty estimates derived through kernel density estimation on grouped data.
July 1, 2008
Technology and Finance
Description: The benefits from financial development are known to vary across industries. However, no systematic effort has been made to determine the technological characteristics that are shared by industries that tend to grow relatively faster in more financially developed countries. This paper explores a range of technological characteristics that might underpin differences across industries in the need or the ability to raise external funding. The main finding is that industries that grow faster in more financially developed countries tend to display greater R&D intensity or investment lumpiness, indicating that well-functioning financial markets direct resources towards industries that grow by performing R&D.
July 1, 2008
Germany’s Corporate Governance Reforms: Has the System Become Flexible Enough?
Description: This article reviews Germany's corporate governance system and the effectiveness of recent reforms. Since the early 1990s far-reaching reforms have complemented the traditional stakeholder system with important elements of the shareholder system. Instead of taking a view on the superiority of either system, this article raises the important question whether these reforms created sufficient flexibility for the market to optimize its corporate governance structure within well established social and legal norms. It concludes that there is scope for enhancing flexibility in three core areas, relating to (i) internal control mechanisms, especially the flexibility of board structures; (ii) self-dealing; and (iii) external control, particularly take-over activity.