Working Papers
2009
April 1, 2009
Ponzi Schemes in the Caribbean
Description: In several Caribbean states, unregulated investment schemes grew quickly in recent years by claiming unusually high monthly returns and through a system of referrals by existing members. These are features shared with traditional Ponzi schemes and pyramid schemes. This paper describes the growth of such schemes, their subsequent collapse, and the policy response of regulators, and presents key policy lessons. The analysis and recommendations draw on country experiences in the Caribbean, and in such diverse countries as the United States, Colombia, Lesotho, and Albania.
April 1, 2009
Chile’s Structural Fiscal Surplus Rule: A Model-Based Evaluation
Description: The paper analyzes Chile's structural balance fiscal rule in the face of copper price shocks originating in foreign copper demand. It uses a version of the IMF's Global Integrated Monetary and Fiscal Model (GIMF) that includes a copper sector. Two results are obtained. First, Chile's current fiscal rule performs well if the policymaker puts a small weight on output volatility (relative to inflation volatility) in his/her objective function. A more aggressive countercyclical fiscal rule can attain lower output volatility, but there is a trade-off with (somewhat) higher inflation volatility and (much) higher volatility of fiscal variables. Second, given its current stock of government assets, Chile's adoption of a 0.5% surplus target starting in 2008 is desirable from a business cycle perspective. This is because the earlier 1% target would have required significant further asset accumulation that could only have been accomplished at the expense of greater volatility in fiscal instruments and therefore in GDP.
April 1, 2009
It Framework Design Parameters
Description: This is the third chapter of a forthcoming monograph entitled "On Implementing Full-Fledged Inflation-Targeting Regimes: Saying What You Do and Doing What You Say." It examines a number of elements in the design of an inflation-targeting framework. These include the definition of the target variable, the relevance of core measures of inflation, and the advantages and disadvantages of point targets, point targets with a band, and range targets. It then discusses the choice of a long-term inflation rate, the target horizon, and the policy horizon.
April 1, 2009
Why Inflation Targeting?
Description: This is the second chapter of a forthcoming monograph entitled "On Implementing Full-Fledged Inflation-Targeting Regimes: Saying What You Do and Doing What You Say." We begin by discussing the costs of inflation, including their role in generating boom-bust cycles. Following a general discussion of the need for a nominal anchor, we describe a specific type of monetary anchor, the inflation-targeting regime, and its two key intellectual roots-the absence of long-run trade-offs and the time-inconsistency problem. We conclude by providing a brief introduction to the way in which inflation targeting works.
April 1, 2009
Hold Your Nose and Vote: Why Do Some Democracies Tolerate Corruption?
Description: This paper analyses why corruption can persist for long periods in a democracy and inquires whether this can result from a well-informed rational choice of the citizens. By applying a citizen-candidate model of representative democracy, the paper analyzes how corruption distortsthe allocation of resources between public and private expenditure, altering the policy preferences of elected and nonelected citizens in opposite directions. The result is a reduction in real public expenditure and, if the median voter's demand for public goods is sufficiently elastic, a tax reduction. In this case, some citizens can indirectly benefit from corruption. The paper shows that, under this condition, if the citizens anticipate a shift in policy preferences in favor of higher public expenditure, they may support institutional arrangements that favor corruption (such as a weak enforcement of the law) in order to alter future policy decisions in their favor. This result complements the findings of other studies that have attributed the persistence of corruption in a democracyto some failure on the part of the voters or the electoral system. It also bears implications for developing effective anticorruption strategies and for redefining the role that can be played by the international community.
April 1, 2009
Exposure to Real Estate Losses: Evidence from the US Banks
Description: We implement a three-step procedure to assess the extent of exposure to real estate in commercial banks. First, we demonstrate interest rates and income to be the major determinants of delinquency. Then, we adopt a stress testing approach to calculate the impact of any adverse changes in these determinants. This suggests that a 1.3 percentage point increase in mortgage interest rate leads to a 20 percent decrease in a typical bank's distance to default. Finally, we look at the cross-sectional differences and indentify the banks with rapid loan growth along with high cost-income ratio as the most vulnerable.
April 1, 2009
Assessing Exchange Rate Competitiveness in the Eastern Caribbean Currency Union
Description: This paper uses three methods to assess movements of real exchange rates in the ECCU over time. First, the purchasing power parity hypothesis is tested and then used to provide a benchmark for equilibrium real exchange rates in the region. Second, a fundamentals-based equilibrium real exchange rate approach is used to explore sources of real exchange rate fluctuations in ECCU countries. And third, a macroeconomic balance approach is used to estimate equilibrium current account or current account "norms". The main finding of these analyses is that there is little evidence of overvaluation of the EC dollar. Furthermore, this paper contributes to the literature by analyzing the distinctive impact of tourism in determining real exchange rates through the wealth effect induced by tourism-driven increases in terms of trade and productivity.
April 1, 2009
Limited Information Bayesian Model Averaging for Dynamic Panels with Short Time Periods
Description: Bayesian Model Averaging (BMA) provides a coherent mechanism to address the problem of model uncertainty. In this paper we extend the BMA framework to panel data models where the lagged dependent variable as well as endogenous variables appear as regressors. We propose a Limited Information Bayesian Model Averaging (LIBMA) methodology and then test it using simulated data. Simulation results suggest that asymptotically our methodology performs well both in Bayesian model selection and averaging. In particular, LIBMA recovers the data generating process very well, with high posterior inclusion probabilities for all the relevant regressors, and parameter estimates very close to the true values. These findings suggest that our methodology is well suited for inference in dynamic panel data models with short time periods in the presence of endogenous regressors under model uncertainty.
April 1, 2009
A Coincident Indicator of the Gulf Cooperation Council (GCC) Business Cycle
Description: This paper constructs a coincident indicator for the Gulf Cooperation Council (GCC) area business cycle. The resulting coincident indicator provides a reliable measure of the GCC business cycle; over the last decade, the GCC coincident index and the real GDP growth have moved closely together. Since the indicator is constructed using a small number of common factors, the strong correlation between the indicator and real GDP growth points to a high degree of commonality across GCC economies. The timing and direction of movements in macroeconomic variables are characterized with respect to the coincident indicator. Finally, to obtain a meaningful economic interpretation of the latent factors, their behavior is compared to the observed economic variables.
April 1, 2009
The Missing Link Between Financial Constraints and Productivity
Description: The global financial crisis has reopened the debate on the potential spillover effects from the financial sector to the real economy. This paper adds to that debate by providing new evidence on the link between finance and firm-level productivity, focusing on the case of Estonia. We contribute to the literature in two important respects: (i) we look explicitly at the role of financial constraints; and (ii) we develop a methodology that corrects for the misspecification problems of previous studies. Our results indicate that young and highly indebted firms tend to be more financially constrained. Overall, a large number of firms shows some degree of financial constraints, with firms in the primary sector being the most constrained. More importantly, we find that financial constraints do not lower productivity for most sectors.