Working Papers
2017
September 29, 2017
Settling the Inflation Targeting Debate: Lights from a Meta-Regression Analysis
Description: Inflation targeting (IT) has gained much traction over the past two decades, becoming a framework of reference for the conduct of monetary policy. However, the debate about its very merits and macroeconomic consequences remains inconclusive. This paper digs deeper into the issue through a meta-regression analysis (MRA) of the existing literature, making it the first application of a MRA to the macroeconomic effects of IT adoption. Building on 8,059 estimated coefficients from a very broad sample of 113 studies, the paper finds that the empirical literature suffers from two types of publication bias. First, authors, editors and reviewers prefer results featuring beneficial effects of IT adoption on inflation volatility, real GDP growth and fiscal performances; second, they promote results with estimated coefficients that are significantly different from zero. However, after filtering out the publication biases, we still find meaningful (genuine) effects of IT in reducing inflation and real GDP growth volatility, but no significant genuine effects on inflation volatility and the level of real GDP growth. Interestingly, the results indicate that the impact of IT varies systematically across studies, depending on the sample structure and composition, the time coverage, the estimation techniques, country-specific factors, IT implementation parameters, and publication characteristics.
September 29, 2017
Uncertainty, Financial Frictions and Nominal Rigidities: A Quantitative Investigation
Description: Are uncertainty shocks a major source of business cycle fluctuations? This paper studies the effect of a mean preserving shock to the variance of aggregate total factor productivity (macro uncertainty) and to the dispersion of entrepreneurs' idiosyncratic productivity (micro uncertainty) in a financial accelerator DSGE model with sticky prices. It explores the different mechanisms through which uncertainty shocks are propagated and amplified. The time series properties of macro and micro uncertainty are estimated using U.S. aggregate and firm-level data, respectively. While surprise increases in micro uncertainty have a larger impact on output than macro uncertainty, these account for a small (non-trivial) share of output volatility.
September 20, 2017
Did the Exchange Rate Floor Prevent Deflation in the Czech Republic?
Description: To fight deflationary pressures at the zero lower bound, in November 2013, the Czech National Bank (CNB) introduced a one-sided floor on the exchange rate, as an additional monetary policy instrument. This paper investigates the impact of the FX floor on inflation in the Czech Republic, by comparing actual inflation with counterfactuals in the absence of the exchange rate floor. Three different empirical strategies are implemented: an event study, difference-in-difference regressions and a synthetic control method. The empirical results provide evidence that the exchange rate floor was effective in fighting deflationary pressures and prevented inflation from going into negative territory. The magnitude of the effect ranges between 0.5 to 1.5 percentage points. The results are robust to different econometric specifications.
September 19, 2017
Indexing Structural Distortion: Sectoral Productivity, Structural Change and Growth
Description: This paper proposes a new index of sectoral labor distortion using employment and valueadded shares. We show that this index is highly correlated with growth both crosssectionally and over time. We also use it to compare the degree of distortion among countries and identify sectors where the potential payoffs in terms of growth from reforms could be large. The regression analysis in the paper shows that education and various structural reforms have potential to improve the efficiency of sectoral labor allocation.
September 19, 2017
Policy Mix and the US Trade Balance
Description: The strong US policy response to the 2008-09 financial crisis raised concerns about its impact (spillovers) on other countries, with great focus on the monetary stimulus but little attention to fiscal policy, despite their combined deployment. Using a sign-restricted structural VAR approach, we study the trade spillovers of the post-crisis policy mix, by assessing the joint impact of monetary and fiscal policy. We find that aggregate trade effects, as reflected in the trade balance, varied across time, reflecting the different timing of fiscal and monetary stimuli, with overall positive spillovers in the immediate aftermath of the crisis. At the same time, reflecting the different transmission mechanisms of monetary policy, we find that the effects differed greatly between trading partners with fixed and flexible exchange rates. In general, our results highlight (i) the importance of studying fiscal and monetary policy spillovers jointly in order to avoid attenuation bias from omitted variables; and (ii) that trading partners’ exchange rate regimes are of first order importance in determining the impact of policy spillovers.
September 11, 2017
Medium-Term Budget Frameworks in Sub-Saharan African Countries
Description: More than 15 years ago, many countries in sub-Saharan Africa embarked on a program of budgetary reform, an important element of which was a medium-term budget framework (MTBF). This working paper focuses on the performance of these frameworks in six countries–– Kenya, Namibia, South Africa, Tanzania, Uganda, and Zambia. It assesses the effectiveness of MTBFs in achieving improved fiscal discipline, resource allocation, and certainty of funding, as well as wider economic and social criteria such as poverty reduction and more efficient public investment. In most countries, early successes were not sustained, and budgetary outcomes did not improve, partly for technical reasons, such as poor data and inadequate forecasting methodologies, but also because the reforms were largely supply driven. The paper argues that the development of MTBFs typically falls into four distinct phases. To make the transition from one phase to the next, developing countries should focus on building their capability in macrofiscal forecasting and analysis, and in improving the credibility of the annual budget process.
September 8, 2017
Growth Breaks and Growth Spells in Sub-Saharan Africa
Description: This paper examines the growth performance of sub-Saharan African countries since 1960 through the lens of growth turning points (accelerations and decelerations) and periods of sustained growth (growth spells). Growth accelerations are generally associated with improved external conditions, increased investment and trade openness, declines in inflation, better fiscal balances, and improvements in the institutional environment. Transitioning from growth accelerations to growth spells often requires additional efforts beyond what is needed to trigger an acceleration. Growth spells are sustained by fiscal policy that prevents excessive public debt accumulation, monetary policy geared toward low inflation, outward-oriented trade policies, and structural policies that reduce market distortions, as well as supportive external environment and improvements in democratic institutions. Overall, determinants of growth spells in sub-Saharan Africa are different from those in the rest of the emerging and developing countries.
September 8, 2017
What Prevents a Real Business Cycle Model from Matching the U.S. Data? Decomposing the Labor Wedge
Description: I carry out a business cycle accounting exercise (Chari, Kehoe and McGrattan, 2007) on the U.S. data measured in wage units (Farmer (2010)) for the entire postwar period. In contrast to a conventional approach, this approach preserves common medium-term business cycle fluctuations in GDP, its components and the unemployment rate. Additionally, it facilitates decomposition of the labor wedge into the labor supply and the labor demand wedges. Using this business cycle accounting methodology, I find that in the transformed data, most movements in GDP are accounted for by the labor supply wedge. Therefore, I reverse a key finding of the real business cycle literature which asserts that 70% or more of economic fluctuations can be explained by TFP shocks. In other words, the real business cycle model fits the data badly because the assumption that households are on their labor supply equation is flawed. This failure is masked by data that has been filtered with a conventional approach that removes fluctuations at medium frequencies. My findings are consistent with the literature on incomplete labor markets.
September 8, 2017
The Effect of Leverage on Asset Sales Between Financial Institutions
Description: This paper analyzes how the leverage of financial institutions affects their demand for assets and the resulting value of transactions between financial institutions. The results show a positive relationship between buyer capital and the likelihood of buying assets, and between buyer capital and the value of the deal. That is, those institutions that are the least constrained in their ability to raise funding are those that demand assets and pay more for them. This result does not hold, however, for deposit-taking institutions that had access to several government programs designed to improve their liquidity position during the crisis of 2008.
September 7, 2017
Banking on Women Leaders: A Case for More?
Description: Using a new dataset, we measure the large gap between the representation of men and women in leadership positions in banks and bank supervision agencies worldwide. Women occupied less than 2 percent of bank CEOs positions, and less than 20 percent of the board seats in more than 80 percent of the observations across banks over time. Contrary to common perceptions, many low- and middle-income countries have a higher share of women in bank boards and banking supervision agency boards compared to advanced economies. Econometric analysis suggests that, controlling for relevant bank and country-specific factors, the presence of women as well as a higher share of women on bank boards is associated with greater bank stability, as represented by higher z-scores and lower nonperforming loan ratios. We also examine the share of women on boards of banking supervision agencies by compiling a new dataset. We find that it is associated with greater bank stability. Further research is needed to identify specific mechanisms through which these stability benefits are achieved, and to understand the conditions that have facilitated entry of women into leadership roles in banks and supervision agencies.