Person:
Kraay, Aart

Development Research Group, The World Bank

Fields of Specialization

Macroeconomics, Debt management, Economic growth, Inequality and shared prosperity

Departments

Development Research Group, The World Bank

Last updated January 31, 2023

Biography

Aart Kraay is Director of Research in the Development Research Group at the World Bank. He joined the World Bank in 1995 after earning a Ph.D. in economics from Harvard University (1995), and a B.Sc. in economics from the University of Toronto (1990). His research interests include international capital movements, growth and inequality, governance, and the Chinese economy. His research on these topics has been published in scholarly journals such as the Quarterly Journal of Economics, the Review of Economics and Statistics, the Economic Journal, the Journal of Monetary Economics, the Journal of International Economics, and the Journal of the European Economic Association. He is an associate editor of the Journal of Development Economics, and co-editor of the World Bank Economic Review. He has also held visiting positions at the International Monetary Fund and the Sloan School of Management at MIT, and has taught at the School of Advanced International Studies at Johns Hopkins University.

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Publication Search Results

Now showing 1 - 10 of 65

The Worldwide Governance Indicators Project : Answering the Critics

(World Bank, Washington, DC, 2007-03) Kaufmann, Daniel ; Kraay, Aart ; Mastruzzi, Massimo

The Worldwide Governance Indicators, reporting estimates of six dimensions of governance for over 200 countries between 1996 and 2005, have become widely used among policymakers and academics. They have also attracted some explicit written criticisms. In this short paper the authors synthesize 11 critiques offered by four recent papers. They then refute them as either conceptually incorrect or empirically unsubstantiated.
The Welfare Effects of a Large Depreciation : The Case of Egypt, 2000-05

(World Bank, Washington, DC, 2007-04) Kraay, Aart

The Egyptian pound depreciated sharply between 2000 and 2005, declining by 26 percent in nominal trade-weighted terms. The author investigates the effect of the large depreciation on household welfare operating through exchange rate-induced changes in consumer prices. He estimates exchange rate pass-through regressions using disaggregated monthly consumer price indices to isolate the impact of the exchange rate changes on consumer prices. Then he uses household-level data from the 2000 and 2005 Egyptian household surveys to quantify the welfare effects of these consumer price changes at the household level. The average welfare loss due to exchange rate-induced price increases was equivalent to 7.4 percent of initial expenditure. Stronger estimated exchange rate pass-through for food items imply that this effect disproportionately affected poorer households.
Governance Matters VI : Aggregate and Individual Governance Indicators, 1996-2006

(World Bank, Washington, DC, 2007-07) Kaufmann, Daniel ; Kraay, Aart ; Mastruzzi, Massimo

This paper reports on the latest update of the Worldwide Governance Indicators (WGI) research project covering 212 countries and territories and measuring six dimensions of governance between 1996 and 2006: voice and accountability, political stability and absence of violence, government effectiveness, regulatory quality, rule of law, and control of corruption. This latest set of aggregate indicators are based on hundreds of specific and disaggregated individual variables measuring various dimensions of governance taken from 33 data sources provided by 30 different organizations. The data reflect the views on governance of public sector, private sector, and nongovernmental organization experts, as well as thousands of citizen and firm survey respondents worldwide. The paper also explicitly reports the margins of error accompanying each country estimate. These reflect the inherent difficulties in measuring governance using any kind of data. It finds that even after taking margins of error into account, the WGI permit meaningful cross-country comparisons, as well as monitoring progress over time. In less than a decade, a substantial number of countries exhibit statistically significant improvements in at least one dimension of governance, while other countries exhibit deterioration in some dimensions. The decade-long aggregate indicators, together with the disaggregated individual indicators, are available in a newly-redesigned website at www.govindicators.org.
Does IDA Engage in Defensive Lending?

(World Bank, Washington, DC, 2007-08) Geginat, Carolin ; Kraay, Aart

Multilateral development banks are frequently accused of "defensive lending," the practice of extending new loans purely in order to ensure that existing loans are repaid. This paper empirically examine this hypothesis using data on lending by and repayments to the International Development Association (IDA), which is the largest provider of concessional development loans to low-income countries. The authors argue that key institutional features of IDA both (i) potentially create incentives for defensive lending, and (ii) enable particularly sharp tests of the defensive lending hypothesis. The authors find that there is a surprisingly robust partial correlation between disbursements on new IDA loans and repayments on existing loans. However, a closer look at the evidence suggests that defensive lending is unlikely to be a major explanation for this partial correlation.
Governance Indicators : Where Are We, Where Should We Be Going?

(World Bank, Washington, DC, 2007-10) Kaufmann, Daniel ; Kraay, Aart

Scholars, policymakers, aid donors, and aid recipients acknowledge the importance of good governance for development. This understanding has spurred an intense interest in more refined, nuanced, and policy-relevant indicators of governance. In this paper we review progress to date in the area of measuring governance, using a simple framework of analysis focusing on two key questions: (i) what do we measure? and, (ii) whose views do we rely on? For the former question, we distinguish between indicators measuring formal laws or rules 'on the books', and indicators that measure the practical application or outcomes of these rules 'on the ground', calling attention to the strengths and weaknesses of both types of indicators as well as the complementarities between them. For the latter question, we distinguish between experts and survey respondents on whose views governance assessments are based, again highlighting their advantages, disadvantages, and complementarities. We also review the merits of aggregate as opposed to individual governance indicators. We conclude with some simple principles to guide the refinement of existing governance indicators and the development of future indicators. We emphasize the need to: transparently disclose and account for the margins of error in all indicators; draw from a diversity of indicators and exploit complementarities among them; submit all indicators to rigorous public and academic scrutiny; and, in light of the lessons of over a decade of existing indicators, to be realistic in the expectations of future indicators.
Instrumental Variables Regressions with Honestly Uncertain Exclusion Restrictions

(World Bank, Washington, DC, 2008-05) Kraay, Aart

The validity of instrumental variables (IV) regression models depends crucially on fundamentally untestable exclusion restrictions. Typically exclusion restrictions are assumed to hold exactly in the relevant population, yet in many empirical applications there are reasonable prior grounds to doubt their literal truth. In this paper I show how to incorporate prior uncertainty about the validity of the exclusion restriction into linear IV models, and explore the consequences for inference. In particular I provide a mapping from prior uncertainty about the exclusion restriction into increased uncertainty about parameters of interest. Moderate prior uncertainty about exclusion restrictions can lead to a substantial loss of precision in estimates of structural parameters. This loss of precision is relatively more important in situations where IV estimates appear to be more precise, for example in larger samples or with stronger instruments. The author illustrates these points using several prominent recent empirical papers that use linear IV models.
Governance Matters VII : Aggregate and Individual Governance Indicators 1996-2007

(World Bank, Washington, DC, 2008-06) Kaufmann, Daniel ; Kraay, Aart ; Mastruzzi, Massimo

This paper reports on the latest update of the Worldwide Governance Indicators (WGI) research project, covering 212 countries and territories and measuring six dimensions of governance between 1996 and 2007: Voice and Accountability, Political Stability and Absence of Violence/Terrorism, Government Effectiveness, Regulatory Quality, Rule of Law, and Control of Corruption. The latest aggregate indicators are based on hundreds of specific and disaggregated individual variables measuring various dimensions of governance, taken from 35 data sources provided by 32 different organizations. The data reflect the views on governance of public sector, private sector and NGO experts, as well as thousands of citizen and firm survey respondents worldwide. The authors also explicitly report the margins of error accompanying each country estimate. These reflect the inherent difficulties in measuring governance using any kind of data. The authors also briefly describe the evolution of the WGI since its inception, and show that the margins of error on the aggregate governance indicators have declined over the years, even though they still remain non-trivial. The authors find that even after taking margins of error into account, the WGI permit meaningful cross-country comparisons as well as monitoring progress over time. In less than a decade, a substantial number of countries exhibit statistically significant improvements in at least one dimension of governance, while other countries exhibit deterioration in some dimensions. These aggregate indicators, spanning more than a decade, together with the disaggregated individual indicators, are available at www.govindicators.org.
When Is Growth Pro-Poor? Cross-Country Evidence

(World Bank, Washington, D.C., 2004-02) Kraay, Aart

Growth is pro-poor if the poverty measure of interest falls. According to this definition there are three potential sources of pro-poor growth: (1) a high rate of growth of average incomes; (2) a high sensitivity of poverty to growth in average incomes; and (3) a poverty-reducing pattern of growth in relative incomes. The author empirically decomposes changes in poverty in a large sample of developing countries during the 1980s and 1990s into these three components. In the medium to long run, most of the variation in changes in poverty can be attributed to growth in average incomes, suggesting that policies and institutions that promote broad-based growth should be central to the pro-poor growth agenda. Most of the remainder of the variation in poverty is due to poverty-reducing patterns of growth in relative incomes, rather than differences in the sensitivity of poverty to growth in average incomes. Cross-country evidence provides relatively little guidance as to the policies and institutions that promote these other sources of pro-poor growth.
Governance Matters II : Updated Indicators for 2000-01

(World Bank, Washington, DC, 2002-02) Kaufmann, Daniel ; Kraay, Aart ; Zoido-Lobaton, Pablo

The authors construct aggregate governance indicators for six dimensions of governance, covering 175 countries in 2000-01. They apply the methodology developed in Kaufmann, Kraay, and Zoido-Lobaton ("Aggregating Governance Indicators", Policy Research Working Paper 2195, and "Governance Matters", Policy Research Working Paper 2196, October 1999) to newly available data at governance indicators comparable with those constructed for 1997-98. The data is presented I the appendix, and accessible through an interactive Web-interface at http://www.worldbank.org/wbi/governance/govdata2001.htm.
When Is External Debt Sustainable?

(World Bank, Washington, D.C., 2004-02) Kraay, Aart ; Nehru, Vikram

This paper examines the determinants of "debt distress," which they define as periods in which countries resort to exceptional finance in any of three forms: (1) significant arrears on external debt, (2) Paris Club rescheduling, and (3) nonconcessional International Monetary Fund lending. Using probit regressions, the authors find that three factors explain a substantial fraction of the cross-country and time-series variation in the incidence of debt distress: the debt burden, the quality of policies and institutions, and shocks. They show that these results are robust to a variety of alternative specifications, and that their core specifications have substantial out-of-sample predictive power. The authors also explore the quantitative implications of these results for the lending strategies of official creditors.