Working Papers
2006
December 1, 2006
Assessing Competitiveness After Conflict: The Case of the Central African Republic
Description: This paper assesses competitiveness in the case of the Central African Republic, a postconflict country. The paper presents several conventional techniques for assessing competitiveness, namely the real exchange rate and recent trade performance. Several other measures are considered, in particular transport costs and governance measures, which may be more effective in capturing the obstacles to competitiveness posed by the poor security environment and weak institutions common to many post-conflict situations. The real exchange measure and trade measures suggest some mild erosion of competitiveness in recent years, while the other measures indicate that the competitiveness challenges faced by the Central African Republic are much deeper.
December 1, 2006
Recent Dynamics of Crude Oil Prices
Description: Crude oil prices have been on a run-up spree in recent years. Their dynamics were characterized by high volatility, high intensity jumps, and strong upward drift, indicating that oil markets were constantly out-of-equilibrium. An explanation of the oil price process in terms of the underlying fundamentals of oil markets and world economy was provided, viewing pressure on oil prices mainly as a result of rigid crude oil supply and an expanding world demand for crude oil. A change in the oil price process parameters would require a change in the underlying fundamentals. Market expectations, extracted from call and put option prices, anticipated no change, in the short term, in the underlying fundamentals. Markets expected oil prices to remain volatile and jumpy, and with higher probabilities, to rise, rather than fall, above the expected mean.
December 1, 2006
Tax, Welfare, and Pension Reforms in Slovenia: Implications for Work Incentives and Labor Participation
Description: The labor participation rate in Slovenia has been lower than in the EU-15 (the members states prior to May 2004), particularly for the low-income and older individuals. Using simulations of tax and social benefits and public pensions, the paper shows how the current tax, welfare, and pension systems create disincentives to work among these groups. The paper finds that incentives to retire early are strong for men, especially low-wage earners. The marginal effective tax rates also make it costly for low-income individuals to work and negatively affect the probability of participating. The paper proposes reform measures to enhance work incentives and labor participation, which will be crucial for dealing with population aging and for achieving higher potential growth in Slovenia.
December 1, 2006
Corporate Governance Quality: Trends and Real Effects
Description: This paper constructs a composite index of corporate governance quality, documents its evolution from 1994 through 2003 in selected emerging and developed economies, and assesses its impact on aggregate and corporate growth and productivity. Our investigation yields three main findings. First, corporate governance quality in most countries has overall improved, although to varying degrees and with a few notable exceptions. Second, the data exhibit cross-country convergence in corporate governance quality with countries that score poorly initially catching up with countries with high corporate governance scores. Third, the impact of improvements in corporate governance quality on traditional measures of real economic activity-GDP growth, productivity growth, and the ratio of investment to GDP- is positive, significant, and quantitatively relevant, and the growth effect is particularly pronounced for industries that are most dependent on external finance.
December 1, 2006
Rebalancing China’s Economy: What Does Growth Theory Tell Us?
Description: This paper uses the standard one-sector neoclassical growth model to investigate why China's consumption has been low and investment high. It finds that the low cost of capital has been quantitatively an important factor. Theory predicts that the price of capital may have been significantly distorted in the 1990s and 2000s. The distortion could have been caused by nonperforming loans, borrowing constraints, and uncertainty over changes in government guidance in bank lending. If China is to rebalance growth towards relying more on consumption and less on exports and investment, banking sector reforms and financial market development could, therefore, turn out to be key.
December 1, 2006
A Gravity Model of Workers’ Remittances
Description: This paper creates the first dataset of bilateral remittance flows for a limited set of developing countries and estimates a gravity model for workers' remittances. We find that most of the variation in bilateral remittance flows can be explained by a few gravity variables. The evidence on the motives to remit is mixed, but altruism may be less of a factor than commonly believed. Most strikingly, remittances do not seem to increase in the wake of a natural disaster and appear aligned with the business cycle in the home country, suggesting that remittances may not play a major role in limiting vulnerability to shocks. To encourage remittances and maximize their economic impact, policies should be directed at reducing transaction costs, promoting financial sector development, and improving the business climate.
December 1, 2006
Central Bank Boards Around the World: Why Does Membership Size Differ?
Description: This paper analyzes empirically differences in the size of central bank boards across countries. Defining a board as the body that changes monetary instruments to achieve a specified target, we discuss the possible determinants of a board's size. The empirical relevance of these factors is examined using a new dataset that covers the de jure membership size of 84 central bank boards at the end of 2003. We find that larger and more heterogeneous countries, countries with stronger democratic institutions, countries with floating exchange rate regimes, and independent central banks with more staff tend to have larger boards.
December 1, 2006
Elements of Optimal Monetary Policy Committee Design
Description: The move from individual decision making to committee decision making is widely seen as a major evolution in contemporary central banking. This paper reviews the relevant economics and social psychology literatures with a view to providing some insights into the question of optimal monetary policy committee design. While the preference aggregation literature points to the effect of committee structure on the extent of the time inconsistency problem and its associated costs, the belief aggregation literature analyzes how different committee structures affect the efficiency of information pooling, the process of social influence, and collective accuracy. In conclusion, we highlight the main tradeoffs that the analysis has brought to light and point to directions for future research.
November 1, 2006
Stabilizing Inflation in Iceland
Description: This paper provides some empirical estimates on how tightly is it feasible to control inflation in a very small open economy such as Iceland. Estimated macroeconomic models of Canada, Iceland, New Zealand, the United Kingdom, and the United States are used to derive efficient monetary policy frontiers that trace out the locus of the lowest combinations of inflation and output variability that are achievable under a range of alternative monetary policy rules. These frontiers illustrate that inflation stabilization is more challenging in Iceland than in other industrial countries primarily because of the relative magnitudes of the economic shocks.
November 1, 2006
Testing Real Interest Parity in Emerging Markets
Description: The paper finds significant deviations between short-term emerging market real interest rates and world real interest rates primarily due to the inflationary expectations of the local investor base. We test for long-run real interest convergence in emerging markets using a time varying panel unit root test proposed by Pesaran to capture the improved macro-economic fundamentals since early 1990s. We also estimate the speed of convergence in the presence of a shock. The paper suggests that real interest rates in the emerging markets show some convergence in the long run but real interest parity does not hold. Our results also find that the speed of adjustment of real rates to a shock is estimated to differ significantly across the emerging markets. Measured by their half-life, some emerging markets in Asia, E.Europe and S.Africa, where real interest rates are generally low, take much longer to adjust than where real interest rates are generally high (Latin America, Turkey). From a policy perspective, encouraging foreign investors to take direct exposure at the short end of the local debt market could lower the real interest rates in some emerging markets.