Working Papers
2012
January 1, 2012
Treasury Bills and/Or Central Bank Bills for Absorbing Surplus Liquidity: The Main Considerations
Description: This paper discusses the challenging question of whether central banks should use treasury bills or central bank bills for draining excess liquidity in the banking system. While recognizing that there are practical reasons for using central bank bills, the paper argues that treasury bills are the first best option especially because positive externalities for the financial sector and the rest of the economy. However, the main considerations in the choice should be: (i) operational independence for the central bank; (ii) market development; and (iii) the strengthening of the transmission of monetary policy impulses.
January 1, 2012
Determinants of Inflation in the Euro Area: The Role of Labor and Product Market Institutions
Description: While inflation differentials in a monetary union can be benign, reflecting a catch-up process, or an adjustment mechanism to asymmetric shocks or different business cycles, they may also indicate distortions related to inefficiencies in domestic product and labor markets that amplify or make more persistent the impact of shocks on inflation. The paper examines the determinants of inflation differentials in the euro area, with emphasis on the role of country specific labor and product market institutions. The analysis uses a traditional backward-looking Phillips curve equation and augments it to explore the role of collective bargaining systems, union density, employment protection, and product market regulation. The model is estimated over a panel dataset of 10 euro area countries over the period 1983-2007. Results show that high employment protection, intermediate coordination of collective bargaining, and high union density increase the persistence of inflation. Oil and raw materials price shocks are also more likely to be accommodated by wage increases when the degree of coordination in collective bargaining is intermediate. These results are robust to different estimation methods, model specifications, and outliers. The paper suggests that reforming labor market institutions may improve the functioning of the euro area by reducing the risk of persistent inflation differentials.
January 1, 2012
A Partial Race to the Bottom: Corporate Tax Developments in Emerging and Developing Economies
Description: This paper assembles a new dataset on corporate income tax regimes in 50 emerging and developing economies over 1996-2007 and analyzes their impact on corporate tax revenues and domestic and foreign investment. It computes effective tax rates to take account of complicated special regimes, such as partial tax holidays, temporarily reduced rates and increased investment allowances. There is evidence of a partial race to the bottom: countries have been under pressure to lower tax rates in order to lure and boost investment. In the case of standard tax systems (i.e. tax rules applying under normal circumstances), the effective tax rate reductions have not been larger than those witnessed in advanced economies, and revenues have held up well over the sample period. However, a race to the bottom is evident among special regimes, most notably in the case of Africa, creating effectively a parallel tax system where rates have fallen to almost zero. Regression analysis reveals higher tax rates adversely affect domestic investment and FDI, but do raise revenues in the short-run.
January 1, 2012
Are Rating Agencies Powerful? An Investigation Into the Impact and Accuracy of Sovereign Ratings
Description: We find that Credit Rating Agencies (CRA)'s opinions have an impact in the cost of funding of sovereign issuers and consequently ratings are a concern for financial stability. While ratings produced by the major CRAs perform reasonably well when it comes to rank ordering default risk among sovereigns, there is evidence of rating stability failure during the recent global financial crisis. These failures suggest that ratings should incorporate the obligor's resilience to stress scenarios. The empirical evidence also supports: (i) reform initiatives to reduce the impact of CRAs' certification services; (ii) more stringent validation requirements for ratings if they are to be used in capital regulations; and (iii) more transparency with regard to the quantitative parameters used in the rating process.
January 1, 2012
Macrofinancial Modeling At Central Banks: Recent Developments and Future Directions
Description: This paper surveys dynamic stochastic general equilibrium models with financial frictions in use by central banks and discusses priorities for future development of such models for the purpose of monetary and financial stability analysis. It highlights the need to develop macrofinancial models which allow analysis of the macroeconomic effects of macroprudential policy tools and to evaluate elements of the Basel III reforms as a priority. The paper also reviews the main approaches to introducing financial frictions into general equilibrium models.
January 1, 2012
Measuring Oil-Price Shocks Using Market-Based Information
Description: We study the effects of oil-price shocks on the U.S. economy combining narrative and quantitative approaches. After examining daily oil-related events since 1984, we classify them into various event types. We then develop measures of exogenous shocks that avoid endogeneity and predictability concerns. Estimation results indicate that oil-price shocks have had substantial and statistically significant effects during the last 25 years. In contrast, traditional VAR approaches imply much weaker and insignificant effects for the same period. This discrepancy stems from the inability of VARs to separate exogenous oil-supply shocks from endogenous oil-price fluctuations driven by changes in oil demand.
January 1, 2012
A toolkit for Assessing Fiscal Vulnerabilities and Risks in Advanced Economies
Description: This paper presents a range of tools and indicators for analyzing fiscal vulnerabilities and risks for advanced economies. The analysis covers key short-, medium- and long-term dimensions. Short-term pressures are captured by assessing (i) gross funding needs, (ii) market perceptions of default risk, and (iii) stress dependence among sovereigns. Medium- and long-term pressures are summarized by (iv) medium- and long-term budgetary adjustment needs, (v) susceptibility of debt projections to growth and interest rate shocks, and (vi) stochastic risks to medium-term debt dynamics. Aiming to cover a wide range of advanced economies and minimize data lags, has also influenced the selection of empirical methods. Due to these features, they can, for example, help inform the joint IMF-FSB Early Warning Exercise (EWE) on the fiscal dimensions of economic risks.
January 1, 2012
International Reserves in Low Income Countries: Have they Served As Buffers?
Description: This paper provides a historical perspective on the role of international reserves in low-income countries as a cushion against large external shocks over the last three decades - including the current global crisis. The results suggest that international reserves have played a role in buffering external shocks, with the resulting macroeconomic costs varying with the nature of the shock, the economy's structural characteristics, and the level of reserves.
January 1, 2012
Money As Indicator for the Natural Rate of Interest
Description: The natural interest rate is of great relevance to central banks, but it is difficult to measure. We show that in a standard microfounded monetary model, the natural interest rate co-moves with a transformation of the money demand that can be computed from actual data. The co-movement is of a considerable magnitude and independent of monetary policy. An optimizing central bank that does not observe the natural interest rate can take advantage of this co-movement by incorporating the transformed money demand, in addition to the observed output gap and inflation, into a simple but optimal interest rate rule. Combining the transformed money demand and the observed output gap provides the best information about the natural interest rate.
January 1, 2012
Did Korean Monetary Policy Help Soften the Impact of the Global Financial Crisis of 2008-2009?
Description: Korea was one of the Asian economies hardest hit by the global financial crisis. Anticipating the downturn that would follow the episode of extreme financial stress, the Bank of Korea (BOK) let the exchange rate depreciate as capital flowed out, and preemptively cut the policy rate by 325 basis points. But did it work? This paper seeks a quantitative answer to the following question: Were it not for an inflation targeting framework underpinned by a flexible exchange rate regime, how much deeper would the recession have been? Taking the most intense year of the crisis as our baseline (2008:Q4?2009:Q3), counterfactual simulations indicate that rather the actual outcome of a -2.1 percent contraction, the outturn would have been -2.9 percent if the BOK had not implemented countercyclical and discretionary interest rate cuts. Furthermore, had a fixed exchange rate regime been in place, simulations indicate that output would have contracted by -7.5 percent over the same four-quarter period. In other words, exchange rate flexibility and the interest rate cuts implemented by the BOK helped substantially soften the impact of the global financial crisis on the Korean economy. These counterfactual experiments are based on an estimated structural model, which, along with standard nominal and real rigidities, includes a financial accelerator mechanism in an open-economy framework.