Herrera, Santiago

Person:
Herrera, Santiago

Middle East and North Africa

Fields of Specialization

Macroeconomics, Egypt, International Finance, Expenditure Efficiency Measurement and Benchmarking, Latin America

Departments

Middle East and North Africa

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.

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Publication Search Results

Now showing 1 - 10 of 23

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.
Internal Migration in Egypt : Levels, Determinants, Wages, and Likelihood of Employment
(World Bank, Washington, DC, 2012-08) Badr, Karim; Herrera, Santiago
This paper describes stylized facts about internal migration and the labor force in Egypt, and shows how internal migration in the country is low compared with international standards. Using aggregate labor force survey data, the paper shows how individuals migrate to governorates with higher wages. With a Mincerian equation, the analysis finds that migrants earn premiums with respect to non-migrants, except for those migrants with low education levels. The aggregate labor statistics reveal lower unemployment rates among migrants, a phenomenon that is verified by an employment equation. According to the econometric results, migrants are more likely to be employed, even after controlling for other observable individual characteristics. Finally, the paper estimates a Probit model for the decision to migrate, finding that more educated individuals are more likely to migrate, agricultural workers have a lower probability of migrating, and individuals from governorates in which food production for own consumption is higher are less likely to migrate. These results suggest that low educational attainment and the "food problem", which ties resources to food production to meet subsistence requirements, are at the root of low migration in Egypt.
What Determines the Size of Public Employment? An Empirical Investigation
(World Bank, Washington, DC, 2019-08) Munoz, Ercio; Herrera, Santiago
This paper explores the determinants of public employment across the world and finds that it is negatively associated with country size (by population) and positively associated with the income level. The findings show that a country's openness to trade is positively associated with public employment in low- and middle-income countries, but inversely related in high-income countries. The estimated models are used to predict the expected public employment for a country given its income, population, and openness to trade, and to compare the actual levels with the predicted ones. In general, public employment in Latin American countries is below the predicted levels, except for Argentina, Brazil, Ecuador, Mexico, Suriname, Trinidad and Tobago, and the República Bolivariana de Venezuela. Public employment in the Middle East and North Africa is above the predicted levels, particularly in the Arab Republic of Egypt and the Islamic Republic of Iran. East Asian and Pacific countries' public employment is significantly below the predicted levels, particularly in Hong Kong SAR, China; Japan; the Republic of Korea; and Mongolia. Countries in Europe and Central Asia show higher than predicted public employment, mostly in Romania, Denmark, Sweden, Armenia, and Belorussia. Public employment in Sub-Saharan Africa appears to be below the predicted levels, with the notable exceptions of Botswana and South Africa. The deviations from predicted levels are positively correlated with the union density rate, which is negatively associated with private employment rates. Finally, the study finds no statistical association between public and private employment, suggesting the absence of crowding-out in the employment levels.
Efficiency of Public Spending in Developing Countries : An Efficiency Frontier Approach
(World Bank, Washington, DC, 2005-06) Herrera, Santiago; Pang, Gaobo
Government spending in developing countries typically account for between 15 and 30 percent of GDP. Hence, small changes in the efficiency of public spending could have a major impact on GDP and on the attainment of the government's objectives. The first challenge that stakeholders face is measuring efficiency. This paper attempts such quantification and has two major parts. The first part estimates efficiency as the distance between observed input-output combinations and an efficiency frontier (defined as the maximum attainable output for a given level of inputs). This frontier is estimated for several health and education output indicators by means of the Free Disposable Hull (FDH) and Data Envelopment Analysis (DEA) techniques. Both input-inefficiency (excess input consumption to achieve a level of output) and output-inefficiency (output shortfall for a given level of inputs) are scored in a sample of 140 countries using data from 1996 to 2002. The second part of the paper seeks to verify empirical regularities of the cross-country variation in efficiency. Results show that countries with higher expenditure levels register lower efficiency scores, as well as countries where the wage bill is a larger share of the government's budget. Similarly, countries with higher ratios of public to private financing of the service provision score lower efficiency, as do countries plagued by the HIV/AIDS epidemic and those with higher income inequality. Countries with higher aid-dependency ratios also tend to score lower in efficiency, probably due to the volatility of this type of funding that impedes medium term planning and budgeting. Though no causality may be inferred from this exercise, it points at different factors to understand why some countries might need more resources than others to achieve similar educational and health outcomes.
Efficiency of Public Spending in Education, Health, and Infrastructure: An International Benchmarking Exercise
(World Bank, Washington, DC, 2018-09) Ouedraogo, Abdoulaye; Herrera, Santiago
Governments of developing countries typically spend between 20 and 30 percent of gross domestic product. Hence, small changes in the efficiency of public spending could have a major impact on aggregate productivity growth and gross domestic product levels. Therefore, measuring efficiency and comparing input-output combinations of different decision-making units becomes a central challenge. This paper gauges efficiency as the distance between observed input-output combinations and an efficiency frontier estimated by means of the Free Disposal Hull and Data Envelopment Analysis techniques. Input-inefficiency (excess input consumption to achieve a level of output) and output-inefficiency (output shortfall for a given level of inputs) are scored in a sample of 175 countries using data from 2006-16 on education, health, and infrastructure. The paper verifies empirical regularities of the cross-country variation in efficiency, showing a negative association between efficiency and spending levels and the ratio of public-to-private financing of the service provision. Other variables, such as inequality, urbanization, and aid dependency, show mixed results. The efficiency of capital spending is correlated with the quality of governance indicators, especially regulatory quality (positively) and perception of corruption (negatively). Although no causality may be inferred from this exercise, it points at different factors to understand why some countries might need more resources than others to achieve similar education, health, and infrastructure outcomes.
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.
The Impact of Food Inflation on Urban Poverty and Its Monetary Cost : Some Back-of-the-Envelope Calculations
(World Bank, Washington, DC, 2008-07) Dessus, Sébastien; Herrera, Santiago; de Hoyos, Rafael
This paper uses a sample of 73 developing countries to estimate the change in the cost of alleviating urban poverty brought about by the recent increase in food prices. This cost is approximated by the change in the poverty deficit, that is, the variation in financial resources required to eliminate poverty under perfect targeting. The results show that, for most countries, the cost represents less than 0.1 percent of gross domestic product. However, in the most severely affected, it may exceed 3 percent. In all countries, the change in the poverty deficit is mostly due to the negative real income effect of those households that were poor before the price shock, while the cost attributable to new households falling into poverty is negligible. Thus, in countries where transfer mechanisms with effective targeting already exist, the most cost-effective strategy would be to scale up such programs rather than designing tools to identify the new poor.
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.
Long-Run Growth in Ghana : Determinants and Prospects
(World Bank Group, Washington, DC, 2014-11) Aykut, Dilek; Herrera, Santiago
Ghana's economic growth picked up in the early 2000s and has been exceptionally strong over the past few years, with price booms of its main commodity exports, gold and cocoa, and the initiation of commercial oil production in 2011. This paper examines recent econometric evidence on Ghana's long-term growth and evaluates its sustainability. The empirical evidence surveyed finds that Ghana's main growth drivers were investment, oil, and mineral rents, while government consumption acted as a growth retardant. Based on various scenarios for its determinants, per capita GDP growth rates are predicted to be between 3.5 and 4.5 percent for 2014-34. Nevertheless, the predictions are subject to considerable uncertainty associated with the expected trends and volatility of the drivers of growth, particularly to sustaining investment levels and external factors such as commodity prices and international capital flows. A growth decomposition exercise shows that Ghana's past growth was led by capital accumulation, which will be difficult to sustain given the high current account deficits and the volatility of capital flows. Hence, a switch toward a productivity-based growth strategy, instead of the investment-led growth strategy of the past, is the only viable alternative to sustain the recent high growth rates. For that, Ghana needs focus on policies that enhance government effectiveness and public spending efficiency. To mitigate the risk of falling into the so-called growth traps like many other countries, Ghana must resolve its macroeconomic imbalances and resume the institutional reform to enhance the quality of institutions and make growth more inclusive.
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.