Person:
Servén, Luis

Macroeconomics and Growth Unit, Development Research Group

Fields of Specialization

Financial and private sector development, Debt, Shocks and Vulnerabilities, Macroeconomics

Departments

Macroeconomics and Growth Unit, Development Research Group

Last updated January 31, 2023

Biography

LUIS SERVEN is Senior Advisor in the World Bank’s Research Department, where he manages the research program on Macroeconomics and Growth. He previously managed the Bank’s regional research program on Latin America and the Caribbean. Prior to joining the Bank he worked as a senior researcher at FEDEA, an economics think tank where he was part of the founding team, and taught at the Universidad Complutense of Madrid, MIT, PUC-Rio and CEMFI. His current research focuses on capital flows and exchange rates, fiscal policy, and productivity and growth. He has published numerous books and articles in professional journals on these and other research topics. He holds a Bachelor in Economics from the Universidad Complutense de Madrid and a Ph.D. in Economics from the Massachusetts Institute of Technology. Currently he is co-editor of The World Bank Economic Review and The World Bank Research Observer.

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Publication Search Results

Now showing 1 - 10 of 67

Walking Up the Down Escalator : Public Investment and Fiscal Stability

(World Bank, Washington, DC, 2007-03) Easterly, William ; Irwin, Timothy ; Servén, Luis

Fiscal adjustment becomes like walking up the down escalator when growth-promoting spending is cut so much as to lower growth and thus the present value of future tax revenues to a degree that more than offsets the improvement in the cash deficit. Although short-term cash flows matter, a preponderant focus on them encourages governments to invest too little. Cash flow targets also encourage governments to shift investment spending off budget, by seeking private investment in public projects-irrespective of its real fiscal or economic benefits. To evade the action of cash flow targets, some have suggested excluding from their scope certain investments (such as those undertaken by public enterprises deemed commercial or financed by multilaterals). These stopgap remedies might sometimes help protect investment, but they do not provide a satisfactory solution to the underlying problem. Governments can more effectively reduce the biases created by the focus on short-term cash flows by developing indicators of the long-term fiscal effects of their decisions, including accounting and economic measures of net worth, and where appropriate including such measures in fiscal targets or even fiscal rules, replacing the exclusive focus on liquidity and debt.
Fiscal Rules, Public Investment, and Growth

(World Bank, Washington, DC, 2007-11) Servén, Luis

Solvency is an intertemporal concept, relating to the present value of revenues and expenditures, and encompassing both assets and liabilities. But the standard practice among policy makers, financial market participants and international financial institutions is to assess the strength of the fiscal accounts solely on the basis of the cash deficit. Short-term cash flows matter, but a preponderant focus on them can encourage governments to invest too little, especially during episodes of fiscal tightening. This has potentially adverse consequences for growth and, paradoxically, even for fiscal solvency itself. The paper offers an overview of the links between fiscal targets, public investment, and public sector solvency. After reviewing the international experience with public investment under fiscal adjustment, the paper lays out an analytical framework to illustrate the consequences of using the public deficit as a guide to solvency. The paper then discusses some alternatives to conventional cash deficit rules and their implications for investment and fiscal solvency.
Real Exchange Rates, Saving and Growth : Is There a Link ?

(World Bank, Washington, DC, 2008-05) Montiel, Peter J. ; Servén, Luis

The view that policies directed at the real exchange rate can have an important effect on economic growth has been gaining adherents in recent years. Unlike the traditional "misalignment" view that temporary departures of the real exchange rate from its equilibrium level harm growth by distorting a key relative price in the economy, the recent literature stresses the growth effects of the equilibrium real exchange rate itself, with the claim being that a depreciated equilibrium real exchange rate promotes economic growth. While there is no consensus on the precise channels through which this effect is generated, an increasingly common view in policy circles points to saving as the channel of transmission, with the claim that a depreciated real exchange rate raises the domestic saving rate -- which in turn stimulates growth by increasing the rate of capital accumulation. This paper offers a preliminary exploration of this claim. Drawing from standard analytical models, stylized facts on saving and real exchange rates, and existing empirical research on saving determinants, the paper assesses the link between the real exchange rate and saving. Overall, the conclusion is that saving is unlikely to provide the mechanism through which the real exchange rate affects growth.
Infrastructure and Economic Development in Sub-Saharan Africa

(World Bank, Washington, DC, 2008-09) Calderón, César ; Servén, Luis

An adequate supply of infrastructure services has long been viewed by both academics and policy makers as a key ingredient for economic development. Sub-Saharan Africa ranks consistently at the bottom of all developing regions in terms of infrastructure performance, and an increasing number of observers point to deficient infrastructure as a major obstacle for growth and poverty reduction across the region. This paper offers an empirical assessment of the impact of infrastructure development on growth and inequality, with a focus on Sub-Saharan Africa. The paper uses a comparative cross-regional perspective to place Africa's experience in the international context. Drawing from an updated data set of infrastructure quantity and quality indicators covering more than 100 countries and spanning the years 1960-2005, the paper estimates empirical growth and inequality equations including a standard set of control variables augmented by infrastructure quantity and quality measures, and controlling for the potential endogeneity of the latter. The estimates illustrate the potential contribution of infrastructure development to growth and equity across Africa.
Real Exchange Rate Uncertainty and Private Investment in Developing Countries

(World Bank, Washington, D.C., 2002-04) Servén, Luis

The author examines empirically the link between real exchange rate uncertainty and private investment in developing countries using a large cross country-time series data set. He builds a GARCH-based measure of real exchange rate volatility and finds that it has a strong negative impact on investment, after controlling for other standard investment determinants and taking into account their potential endogeneity. The impact of uncertainty is not uniform, however. There is some evidence of threshold effects, so that uncertainty only matters when it exceeds some critical level. In addition, the negative impact of real exchange rate uncertainty on investment is significantly larger in economies that are highly open and in those with less developed financial systems.
Macroeconomic Stability in Developing Countries:How Much is Enough?

(World Bank, Washington, D.C., 2004-11) Montiel, Peter ; Servén, Luis

In the 1990s macroeconomic policies improved in a majority of developing countries, but the growth dividend from such improvement fell short of expectations, and a policy agenda focused on stability turned out to be associated with a multiplicity of financial crises. The authors take a retrospective look at the content and implementation of the macroeconomic reform agenda of the 1990s. They review the progress achieved with fiscal, monetary, and exchange rate policies across the developing world, and the effectiveness of the changing policy framework in promoting stability and growth. The main lesson is that slow growth and frequent crises resulted, more often than not, from shortcomings in the reform agenda of the 1990s. These shortcomings essentially concern the depth and breadth of the macroeconomic reform agenda, its attention to macroeconomic vulnerabilities, and the complementary reforms outside the macroeconomic sphere.
Trends in Infrastructure in Latin America, 1980-2001

(World Bank, Washington, D.C., 2004-09) Calderón, César ; Servén, Luis

There is widespread concern across Latin America that the provision of infrastructure services has suffered as a consequence of the retrenchment of the public sector and the insufficient response of the private sector to the opening up of infrastructure industries to private participation in most countries. The authors document the recent trends in infrastructure stocks and infrastructure investment in major Latin American economies. Using an updated dataset constructed for this task, the authors describe the evolution of the quantity and quality of infrastructure assets-power, transport, and telecommunications-as well as the investment expenditures of the public and private sectors. They find that Latin America lags behind the international norm in terms of infrastructure quantity and quality, and there is little evidence that the gap may be closing-except in the telecommunications sector. Furthermore, overall infrastructure investment has fallen, as a combined result of the retrenchment of public investment and the limited response of the private sector, which has been mostly confined to the telecommunications industry. However, there is considerable disparity across countries. On the whole the data show that the countries most successful in attracting large volumes of private investment (Bolivia, Chile, and Colombia) are precisely those where public investment has remained high.
Greenfield Foreign Direct Investment and Mergers and Acquisitions : Feedback and Macroeconomic Effects

(World Bank, Washington, DC, 2004-01) Calderón, César ; Loayza, Norman ; Servén, Luis

Foreign direct investment (FDI) flows to developing countries surged in the 1990s to become their leading source of external financing. This rise in FDI volume was accompanied by a marked change in its composition: investment taking the form of acquisition of existing assets (mergers and acquisitions) grew much more rapidly than investment in new assets ("greenfield" FDI), particularly in countries undertaking extensive privatization of public enterprises. This raises two issues. First, is the mergers and acquisitions boom a one-time effect of privatization, or is it likely to be followed by a rise in greenfield investment? Second, do these two types of FDI have different macroeconomic causes and consequences in relation to aggregate investment and growth? The authors focus on establishing the stylized facts in terms of time precedence between both types of FDI, investment, and growth, using annual data for the period 1987-2001 and a large sample of industrial and developing countries. The authors find that in all samples, higher mergers and acquisitions is typically followed by higher greenfield investment, while the reverse is true only for developing countries. In industrial and developing countries alike, both types of FDI lead domestic investment, but not the reverse. Finally, neither type of FDI appears to precede economic growth in developing or industrial countries, but FDI does respond positively to increases in the growth rate.
Tango with the Gringo: the Hard Peg and Real Misalignment in Argentina

(World Bank, Washington, D.C., 2004-06) Alberola, Enrique ; López, Humberto ; Servén, Luis

Between 1990 and 2001 the Argentine peso appreciated by 80 percent in real terms, and its overvaluation has been singled out as one of the main suspects in the debate on the causes of the Argentina collapse of late 2001. This paper assesses the degree of real misalignment in Argentina over the Convertibility period using a model in which the equilibrium real exchange rate is defined as the value consistent with (i) a balance of payments position where any current account imbalance is financed by a sustainable flow of international capital (external equilibrium), and (ii) traded/nontraded sector productivity differentials (internal equilibrium). Empirical implementation of the model suggests that the initial real appreciation of the peso, between 1990 and 1993, was consistent with the productivity increases that Argentina enjoyed following the stabilization of the economy after the hyperinflation of the late 1980s. But after 1996 a widening gap opened between the observed real exchange rate and that consistent with a sustainable net foreign asset position. Our estimates indicate that in 2001 the peso was overvalued by over 50 percent. The model allows us to assess how much of the overvaluation resulted from Argentina's inadequate choice of anchor currency and how much from a divergence of fundamentals between the U.S. and Argentina, ultimately due to the maintenance of policies inconsistent with the peg. We find that both factors played a role in the overvaluation accumulated between 1977 and 2001 that preceded the collapse of the Convertibility regime.
The Effects of Infrastructure Development on Growth and Income Distribution

(World Bank, Washington, D.C., 2004-09) Calderón, César ; Servén, Luis

The authors provide an empirical evaluation of the impact of infrastructure development on economic growth and income distribution using a large panel data set encompassing over 100 countries and spanning the years 1960-2000. The empirical strategy involves the estimation of simple equations for GDP growth and conventional inequality measures, augmented to include, among the regressors, infrastructure quantity and quality indicators, in addition to standard controls. To account for the potential endogeneity of infrastructure (as well as that of other regressors), the authors use a variety of generalized-method-of-moments (GMM) estimators based on both internal and external instruments and report results using both disaggregated and synthetic measures of infrastructure quantity and quality. The two robust results are: (1) growth is positively affected by the stock of infrastructure assets, and (2) income inequality declines with higher infrastructure quantity and quality. A variety of specification tests suggests that these results do capture the causal impact of the exogenous component of infrastructure quantity and quality on growth and inequality. These two results combined suggest that infrastructure development can be highly effective to combat poverty. Furthermore, illustrative simulations for Latin American countries suggest that these impacts are economically quite significant, and highlight the growth acceleration and inequality reduction that would result from increased availability, and quality of infrastructure.