Working Papers
2016
December 22, 2016
Food Inflation in Sub-Saharan Africa: Causes and Policy Implications
Description: This paper analyzes food inflation trends in Sub-Saharan Africa (SSA) from 2000 to 2016 using two novel datasets of disaggregated CPI baskets. Average food inflation is higher, more volatile, and similarly persistent as non-food non-fuel (NF/NF) inflation, especially in low-income countries (LICs) in SSA. We find evidence that food inflation became less persistent from 2009 onwards, related to recent improvements in monetary policy frameworks. We also find that high food prices are driven mainly by non-tradable food in SSA and there is incomplete pass-through from world food and fuel prices and exchange rates to domestic food prices. Taken together, these finding suggest that central banks in low-income countries with high and persistent food inflation should continue to pay attention to headline inflation to anchor inflation expectations. Other policy levers include reducing tariffs and improving storage and transport infrastructure to reduce food pressures.
December 22, 2016
Does Gross or Net Debt Matter More for Emerging Market Spreads?
Description: Does gross or net debt matter for long-term sovereign spreads in emerging markets? The topic is important for undestanding the borrowing cost implications of public assetliability management decisions (e.g. using assets to lower debt). We investigate this question using data on emerging market economies (EMEs) over the period 1998–2014. We find that both gross debt and assets have a significant impact on long-term sovereign bond spreads in emerging markets, with effects roughly offsetting each other (coefficients of opposite sign and similar magnitude). Hence, net debt seems more appropriate than gross debt when evaluating the impact of indebtedness on spreads. The empirical results suggest that an increase in net debt by 10 percentage points of GDP implies an increase in the spread by 100–120 basis points, and the effect is larger during periods of domestic distress. The key results from this empirical study are quite robust to alternative specifications and subgroups of EMEs.
December 16, 2016
Inequality and Growth: A Heterogeneous Approach
Description: The combination of stagnant growth and high levels of income inequality renewed the debate about whether a more even distribution of income can spur economic activity. This paper tests for cross-country convergence in income inequality and estimates its impact on economic growth with a heterogeneous panel structural vector autoregression model, which addresses some empirical challenges plaguing the literature. We find that income inequality is converging across countries, and that its impact on economic growth is heterogeneous. In particular, while the median response of real per capita GDP growth to shocks in income inequality is negative and significant, the dispersion around the estimates is large, with at least one fourth of the countries in the sample presenting a positive effect. The results suggest that the negative effect is mainly driven by the Middle East and Central Asia and the Western Hemisphere across regions, and emerging markets across income levels. Finally, we find evidence that improved institutional frameworks can reduce the negative effect of income inequality on growth.
December 15, 2016
Emerging Market Corporate Leverage and Global Financial Conditions
Description: Corporate debt in emerging markets has risen significantly in recent years amid accommodative global financial conditions. This paper studies the relationship of leverage growth in emerging market (EM) firms to U.S. monetary conditions, and more broadly, to global financial conditions. We find that accommodative U.S. monetary conditions are reliably associated with faster EM leverage growth during the past decade. Specifically, a 1 percentage point decline in the U.S. policy rate corresponds to an appreciable increase in EM leverage growth of 9 basis points, on average (relative to the sample average leverage growth of 35 basis points per year). This impact is more pronounced for sectors dependent on external financing, for SMEs, and for firms in more financially open EMs with less flexible exchange rates. The findings suggest that global financial conditions affect EM firms’ leverage growth in part by influencing domestic interest rates and by relaxing corporate borrowing constraints.
December 13, 2016
Automatic Adjustment Mechanisms in Asian Pension Systems?
Description: Automatic adjustment mechanisms (AAMs)—rules ensuring that certain characteristics of a pension system respond to demographic, macroeconomic and financial developments, in a predetermined fashion and without the need for additional intervention—have been introduced in many OECD countries to tackle public pension schemes’ deteriorating financial sustainability. Incorporating AAMs—in particular linking retirement age to life expectancy—can be an important part of pension reforms in Asia. If implemented early, AAMs could help prevent the need for sharp adjustments in the future, increase the predictability and inter-generational equity of pension systems and enhance confidence.
December 13, 2016
Output and Inflation Co-movement: An Update on Business-Cycle Stylized Facts
Description: What are the drivers of business cycle fluctuations? And how many are there? By documenting strong and predictable co-movement of real variables during the business cycle in a sample of advanced economies, we argue that most business cycle fluctuations are driven by one major factor. The positive co-movement of real output and inflation convincingly argues for a demand story. We propose a simple statistic that can compare data and models. Based on this statistic, we show that the recent vintage of structural economic models has difficulties replicating the stylized facts we document.
December 13, 2016
Monetary Policy Credibility and Exchange Rate Pass-Through
Description: A long-standing conjecture in macroeconomics is that recent declines in exchange rate pass-through are in part due to improved monetary policy performance. In a large sample of emerging and advanced economies, we find evidence of a strong link between exchange rate pass-through to consumer prices and the monetary policy regime’s performance in delivering price stability. Using input-output tables, we decompose exchange rate pass-through to consumer prices into a component that reflects the adjustment of imported goods at the border, and another that captures the response of all other prices. We find that price stability and central bank credibility have reduced the second component.
December 12, 2016
A Tale of Transition: An Empirical Analysis of Economic Inequality in Urban China, 1986–2009
Description: This paper is the first comprehensive empirical study of earnings, income, and consumption inequality in urban China from 1986 to 2009, using unique micro-level data from the Urban Household Survey (UHS). The paper documents a drastic increase in economic inequality for the sample period. The paper finds that consumption inequality closely tracks income inequality, both over time and over the life cycle. The paper believes that the main driver of this co-movement could be a dramatic increase in noninsurable idiosyncratic permanent income shocks after the early 1990s, associated with the economic transition in urban China.
December 8, 2016
The Impact of Workforce Aging on European Productivity
Description: The age-distribution of Europe’s workforce has shifted towards older workers over the past few decades, a process expected to accelerate in the years ahead.. This paper studies the effect of the aging of the workforce on labor productivity, identifies the main transmission channels, and examines what policies might mitigate the effects of aging. We find that workforce aging reduces growth in labor productivity, mainly through its negative effect on TFP growth. Projected workforce aging could reduce TFP growth by an average of 0.2 percentage points every year over the next two decades. A variety of policies could ameliorate this effect.
December 8, 2016
The Impact of Demographics on Productivity and Inflation in Japan
Description: Is Japan’s aging and, more recently, declining population hampering growth and reflation efforts? Exploiting demographic and economic variation in prefectural data between 1990 and 2007, we find that aging of the working age population has had a significant negative impact on total factor productivity. Moreover, prefectures that aged at a faster pace experienced lower overall inflation, while prefectures with higher population growth experienced higher inflation. The results give strong support to the notion that demographic headwinds can have a non-trivial impact on total factor productivity and deflationary pressures.