Person:
Herrera, Santiago

Middle East and North Africa
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Fields of Specialization
Macroeconomics, Egypt, International Finance, Expenditure Efficiency Measurement and Benchmarking, Latin America
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Middle East and North Africa
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Last updated: February 1, 2023
Biography
Santiago Herrera Aguilera is the Lead Country Economist for Egypt in the Middle East and North Africa region at the World Bank. He has been in this position since September of 2008. He first joined the Bank in May of 1998 as a Senior Economist working for the Latin America and Caribbean Region. In February of 2004 he became the Lead Economist for economic policy at the Poverty Reduction and Economic Management Network in Washington. Prior to joining the Bank, Aguilera was the Deputy Minister of Finance in Columbia from 1995 to 1996. Before that, he was the Director of the National Budget also at the Columbian Ministry of Finance. Aguilera holds a Doctor of Philosophy in Economics from Columbia University in New York. He also holds a Masters degree in Economics from the Universidad de Los Andes in Bogota, Columbia.

Publication Search Results

Now showing 1 - 9 of 9
  • Publication
    Public Expenditure and Growth
    (World Bank, Washington, DC, 2007-10) Herrera, Santiago
    Given that public spending will have a positive impact on GDP if the benefits exceed the marginal cost of public funds, the present paper deals with measuring costs and benefits of public spending. The paper discusses one cost seldom considered in the literature and in policy debates, namely, the volatility derived from additional public spending. The paper identifies a relationship between public spending volatility and consumption volatility, which implies a direct welfare loss to society. This loss is substantial in developing countries, estimated at 8 percent of consumption. If welfare losses due to volatility are this sizeable, then measuring the benefits of public spending is critical. Gauging benefits based on macro aggregate data requires three caveats: a) considering of the impact of the funding (taxation) required for the additional public spending; b) differentiating between investment and capital formation; c) allowing for heterogeneous response of output to different types of capital and differences in network development. It is essential to go beyond country-specificity to project-level evaluation of the benefits and costs of public projects. From the micro viewpoint, the rate of return of a project must exceed the marginal cost of public funds, determined by tax levels and structure. Credible evaluations require microeconomic evidence and careful specification of counterfactuals. On this, the impact evaluation literature and methods play a critical role. From individual project evaluation, the analyst must contemplate the general equilibrium impacts. In general, the paper advocates for project evaluation as a central piece of any development platform. By increasing the efficiency of public spending, the government can permanently increase the rate of productivity growth and, hence, affect the growth rate of GDP.
  • Publication
    Policy Mix, Public Debt Management and Fiscal Rules : Lessons from the 2002 Brazilian Crisis
    (World Bank, Washington, DC, 2005-02) Herrera, Santiago
    Despite significant progress in economic reform throughout the 1990s, and an exemplary development of the policymaking framework in the second part of the decade, Brazil suffered a major public debt and currency crisis in 2002. Though the political origin of the uncertainty cannot be ignored, the author identifies other sources of uncertainty emanating from the policymaking framework: fiscal policy was not responsive to the shocks, public debt instruments were used with several objectives (to stabilize the currency and to lengthen maturity) and there was inadequate supervision of agents holding public debt. Most of the flaws have been fixed following the crisis: a) The primary fiscal balance has been increased, sending the signal that it is a flexible instrument that will be used to ensure commitment of the sovereign to honor its obligations. b) The central bank formally transferred to the Treasury the remaining debt-issuance functions, facilitating a more adequate balancing of different risks involved in debt management. c) Mutual funds' public debt holdings are better regulated, ensuring that end-investors have the proper information to assess the risk of the institutions in which they invest.
  • Publication
    Budget Rigidity in Latin America and the Caribbean: Causes, Consequences, and Policy Implications
    (World Bank, Washington, DC, 2020-03-09) Olaberria, Eduardo; Herrera, Santiago
    Policy makers in Latin America and the Caribbean (LAC) often complain that poor fiscal performance in their countries is a result of a high degree of spending rigidity. Despite being a common complaint, the issue has remained largely ignored by the literature because of the lack of adequate measures of rigidity that allow cross-country and time series comparability. This report helps close this gap by introducing a new measure of spending rigidities that can be easily applied to multiple countries. It focuses on the categories of spending that are naturally inflexible—wages, pensions, transfers to subnational governments, and debt service—and separates them into two components: structural and nonstructural. The structural component is determined by economic, demographic, and institutional fundamentals. The nonstructural component is determined by short-run transitory factors associated with business and political cycles. The degree of rigidity of spending is then proxied by the ratio of structural spending to total spending, with a higher value indicating that spending is driven mostly by factors out of the policy makers’ control. This concept of rigidity was applied to 120 countries for the years 2000–17. The report concludes by discussing several policies to contain the sources of rigidity in the long term, ranging from the importance of deepening the pension reform process to the need of establishing strong fiscal institutions promoting medium-term fiscal planning.
  • Publication
    Macroeconomic Shocks and Banking Sector Developments in Egypt
    (World Bank, Washington, DC, 2013-01) Youssef, Hoda; Herrera, Santiago
    From 2008 to 2011, Egypt was hit by significant shocks, both global and country-specific. This paper assesses the impact of the resulting macroeconomic instability on the banking sector, and examines its role as a shock absorber. The Central Bank of Egypt accommodated the shocks by supplying liquidity to the market. The paper verifies a change in the fiscal regime from one in which the primary fiscal balance was used an instrument to stabilize the public debt ratio to one in which the policy instrument stopped playing that role and affected investors' assessment of the risk of holding public debt. This pattern suggests that fiscal conditions influenced exchange rate and price expectations originating a fiscal dominance situation in which the Central Bank could not control inflation. Hence, the Central Bank lacked functional independence in spite of its de jure independence, which underscores the importance of strengthening institutions that facilitate policy coordination and allow policy to be more predictable. The government also funds itself through non-market mechanisms, in a typical financial repression scheme. The paper estimates the revenue from financial repression at about 2.5 percent of gross domestic product in 2011, which together with the revenues from seignoriage add up to close to 50 percent of the budgeted tax revenues, indicating the need for an in-depth review of the governance of the public banks and the funding of public sector activities. Finally, the paper estimates the impact of shocks to macroeconomic variables on loan portfolio quality and bank capital.
  • Publication
    The Quality of Fiscal Adjustment and the Long-Run Growth Impact of Fiscal Policy in Brazil
    (World Bank, Washington, DC, 2006-09) Blanco, Fernando; Herrera, Santiago
    The authors describe the main trends of Brazil's fiscal policy during the past decade and analyze (1) the ability to raise the primary surplus in response to external shocks, (2) the pro-cyclical nature of fiscal policy, and (3) the long-run impact of government expenditure composition and taxation. They analyze the use of the primary balance as a policy tool within the Drudi-Prati model, wherein the government uses the primary balance to reveal its commitment to service its debt. The authors verify that both the debt ratio and the primary balance are determinants of spreads and credit ratings in Brazil. But the relationship is nonlinear: the impact of the primary balance on spreads is amplified as the debt ratio increases. Using an Autoregressive Distributed Lag (ARDL) approach, the authors analyze the relationship between the primary balance and economic activity, finding a positive correlation in the long run. However, in the short run fiscal expansions are associated with primary balance reductions and vice-versa during output contractions, confirming the procyclical nature of fiscal policy in the short run. The authors use two approaches, ARDL and a cointegrating value at risk (VAR), to analyze the interaction between public expenditure composition and taxation on growth. Similar results are obtained: large elasticities of output with respect to capital stocks, a significant negative impact of taxation on long-run GDP, and a negative impact of increasing government consumption and transfer payments on GDP. These results shed light on the contribution of fiscal policy to disappointing growth performance in Brazil during the past decade.
  • Publication
    Public Expenditure and Consumption Volatility
    (World Bank, Washington, DC, 2008-05) Vincent, Bruno; Herrera, Santiago
    Recent estimates of the welfare cost of consumption volatility find that it is significant in developing nations, where it may reach an equivalent of reducing consumption by 10 percent per year. Hence, examining the determinants of consumption volatility is of utmost relevance. Based on cross-country data for the period 1960-2005, the paper explains consumption volatility using three sets of variables: one refers to the volatility of income and the persistence of income shocks; the second set of variables refers to policy volatility, considering the volatility of public spending and the size of government; while the third set captures the ability of agents to smooth shocks, and includes the depth of the domestic financial markets as well as the degree of integration to international capital markets. To allow for potential endogenous regressors, in particular the volatility of fiscal policy and the size of government, the system is estimated using the instrumental variables method. The results indicate that, besides income volatility, the variables with the largest and most robust impact on consumption volatility are government size and the volatility of public spending. Results also show that deeper and more stable domestic financial markets reduce the volatility of consumption, and that more integrated financial markets to the international capital markets are associated with lower volatility of consumption.
  • Publication
    Output Fluctuations in Latin America : What Explains the Recent Slowdown?
    (World Bank, Washington, DC, 2000-05) Perry, Guillermo; Herrera, Santiago; Quintero, Neile
    The authors explain Latin America's growth slowdown in 1998-1999. To do so, they use two complementary methodologies. The first aims at determining how much of the slowdown can be explained by specific external factors: the terms of trade, international interest rates, spreads on external debt, capital flows, and climatological factors (El Nino). Using quarterly GDP data for the eight largest countries in the region, the authors estimate a dynamic panel showing that 50-60 percent of the slowdown was due to these external factors. The second approach allows for effects on output by some endogeneous variables, such as domestic real interest rates, and real exchange rates. Using monthly industrial performance data, the authors estimate country-specific generalized vector auto-regressions (GVAR) for the largest countries. They find that during the sample period (1992-98) output volatility is mostly associated with shocks to domestic factors, but the slowdown in the sub-period 1998-99 is explained more than 60 percent by shocks to the external factors.
  • Publication
    Egypt beyond the Crisis : Medium-Term Challenges for Sustained Growth
    (2010-10-01) Selim, Hoda; Herrera, Santiago; Youssef, Hoda; Zaki, Chahir
    The paper analyzes the impact of the recent global crisis in the context of the previous two decades' growth and capital flows. Growth decomposition exercises show that Egyptian growth is driven mostly by capital accumulation. To estimate the share of labor in national income, the analysis adjusts the national accounts statistics to include the compensation of self-employed and non-paid family workers. Still, the share of labor, about 30 percent, is significantly lower than previously estimated. The authors estimate the output costs of the current crisis by comparing the output trajectory that would have prevailed without the crisis with the observed and revised gross domestic product projections for the medium term. The fall in private investment was the main driver of the output cost. Even if private investment recovers its pre-crisis levels, there is a permanent loss in gross domestic product per capita of about 2 percent with respect to the scenario without the crisis. The paper shows how the shock to investment is magnified due to the capital-intensive nature of the Egyptian economy: if the economy had the traditionally-used share of labor in income (40 percent), the output loss would have been reduced by half.
  • Publication
    Why Some Countries Can Escape the Fiscal Pro-Cyclicality Trap and Others Cannot ?
    (World Bank, Washington, DC, 2019-08) Kouame, Wilfred A.; Herrera, Santiago; Mandon, Pierre
    This paper analyzes the procyclicality of fiscal policy on the tax and spending sides in a sample of 116 developing countries between 2000 and 2016. About 20 percent of the countries in the sample switched from procyclical to countercyclical policy stance. In Sub-Saharan Africa, 30 of 39 countries remained caught in the procyclicality trap and the region has the highest degree of procyclicality. The Middle East and North Africa region switched from a countercyclical policy stance to a procyclical one over time. The Europe and Central Asia and Latin America and the Caribbean regions significantly reduced the degree of procyclicality. The main economic variables that affect procyclicality are financial depth, tax base variability, and natural resource dependence. In line with the political economy literature, the perception of corruption, social fragmentation, and inequality in resource distribution are positively associated with procyclicality. The findings also show that the quality of fiscal institutions is associated with procyclicality; countries with fiscal rules have smaller procyclical bias, but the effect is not homogeneous; and higher degrees of expenditure rigidity are associated with lower procyclical bias. The study finds asymmetric policy stances along the business cycle, with procyclicality being more pronounced during recessions. Similarly, the political cycle affects procyclicality, as procyclical bias increases in electoral years. From the tax management perspective, procyclical bias is still present, but there are significant changes: most of the political economy variables lose significance; the resource-dependence variable is not significant; external credit availability reduces procyclicality; tax base variability increases procyclical bias; and expenditure rigidity is no longer significant, but fiscal space becomes determinant of procyclical bias.