Person: Gorgulu, Nisan
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Last updated: April 3, 2025
Biography
Nisan is an economist with an interest in climate policy, spatial economics, private sector development, and governance. Prior to her role in the Climate Finance and Economics Unit, Nisan worked in the World Bank's Office of the Chief Economist for Infrastructure. She holds a master’s degree in economics from Duke University under a Fulbright scholarship and a Ph.D. in Economics from The George Washington University. Nisan has also taught courses in energy economics, environment and policy, and regulation of markets at Copenhagen Business School, where she engaged in postdoctoral research in the dynamic field of energy economics.
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Now showing 1 - 6 of 6
Publication Disentangling the Key Economic Channels through Which Infrastructure Affects Jobs(Washington, DC: World Bank, 2025-04-03) Vagliasindi, Maria; Gorgulu, NisanThis paper takes stock of the literature on infrastructure and jobs published since the early 2000s, using a conceptual framework to identify the key channels through which different types of infrastructure impact jobs. Where relevant, it highlights the different approaches and findings in the cases of energy, digital, and transport infrastructure. Overall, the literature review provides strong evidence of infrastructure’s positive impact on employment, particularly for women. In the case of electricity, this impact arises from freeing time that would otherwise be spent on household tasks. Similarly, digital infrastructure, particularly mobile phone coverage, has demonstrated positive labor market effects, often driven by private sector investments rather than large public expenditures, which are typically required for other large-scale infrastructure projects. The evidence on structural transformation is also positive, with some notable exceptions, such as studies that find no significant impact on structural transformation in rural India in the cases of electricity and roads. Even with better market connections, remote areas may continue to lack economic opportunities, due to the absence of agglomeration economies and complementary inputs such as human capital. Accordingly, reducing transport costs alone may not be sufficient to drive economic transformation in rural areas. The spatial dimension of transformation is particularly relevant for transport, both internationally—by enhancing trade integration—and within countries, where economic development tends to drive firms and jobs toward urban centers, benefitting from economies scale and network effects. Turning to organizational transformation, evidence on skill bias in developing countries is more mixed than in developed countries and may vary considerably by context. Further research, especially on the possible reasons explaining the differences between developed and developing economies, is needed.Publication The Impact of Infrastructure on Development Outcomes: A Qualitative Review of Four Decades of Literature(Washington, DC: World Bank, 2023-03) Gorgulu, Nisan; Foster, Vivien; Straub, Stéphane; Vagliasindi, MariaPolicy makers have long used investing in public infrastructure as a means of reducing geographical disparities and promoting growth. The goal of this paper is to provide insights to development practitioners on designing interventions to maximize the development impact of infrastructure. For this, the paper presents a systematic qualitative overview of the literature, covering more than 300 studies conducted between 1983 and 2022, focusing on specific infrastructure sectors, namely digital, energy, and transport. The study also considers various dimensions of development impact, including output and productivity, poverty and inequality, labor market outcomes, human capital formation, and trade, to develop a nuanced understanding of the mechanisms through which infrastructure contributes to these development outcomes, focusing on low- and middle-income countries. As such, it is the most substantive effort of its kind to date. Overall, despite some mixed results, the overwhelming balance of evidence suggests that infrastructure improvements are critical in supporting the development process. Studies on digital infrastructure show that firm productivity, employment, and welfare increase with the arrival of broadband internet coverage. In addition, the availability of mobile phones improves coordination between producers and traders and hence reduces the price dispersion of agricultural products. Turning to rural electrification, significant literature documents the positive impact of infrastructure on household welfare, structural transformation, and human capital formation through increased labor force participation, more time spent on education, and increased indoor air quality. Investments in the reliability of power supply also contribute to firms’ productivity. However, studies based on randomized controlled trials have not tended to find a substantial short-term impact in the context of dispersed rural populations. Finally, there is rich literature on various transport infrastructure-to-development linkages, particularly for rural roads and for Sub-Saharan Africa. While households’ income and consumption benefit from the existence of rural roads, highways are also found to contribute to firms’ competitiveness. Similarly, public transportation, railways, and ports have positive impacts on the development process.Publication The Impact of Infrastructure on Development Outcomes: A Meta-Analysis(World Bank, Washington, DC, 2023-03) Gorgulu, Nisan; Foster, Vivien; Jain, Dhruv; Straub, Stéphane; Vagliasindi, MariaThis paper presents a meta-analysis of the infrastructure research done over more than three decades, using a database of over a thousand estimates from 221 papers reporting outcome elasticities. The analysis casts a wide net to include the transport, energy, and digital or information and communication technology (ICT) sectors, and the whole set of outcomes covered in the literature, including output, employment and wages, inequality and poverty, trade, education and health, population, and environmental aspects. The results allow for an update of the underlying parameters of interest, the “true” underlying infrastructure elasticities, accounting for publication bias, as well as for heterogeneity stemming from both study design and context, with a particular focus on developing countries.Publication Understanding Public Spending Trends for Infrastructure in Developing Countries(World Bank, Washington, DC, 2022-01) Gorgulu, Nisan; Foster, Vivien; Rana, AnshulEvidence of public expenditure on infrastructure is extremely sparse. Little is known about the trends and patterns of infrastructure expenditure, and there is no real basis for assessing the adequacy and efficiency of infrastructure spending. Drawing on the World Bank’s novel BOOST database, this paper provides a first relatively disaggregated picture of infrastructure spending trends and patterns for a large sample of more than 70 developing countries covering 2010–18, drilling down into expenditure by sector for roads as well as electricity, and distinguishing operating from capital expenditure. Complementary sources of data are tapped to allow comparison between expenditure patterns on and off budget. The study finds that on-budget expenditure on infrastructure has been low both in absolute terms (1 percent of gross domestic product) and relative terms (5 percent of total public spending), as well as declining over time. Overall, infrastructure spending declined by about one-third over 2010–18 (with the road sector bearing the brunt of the decrease), and now lies well below estimates of the required levels, except in a handful of cases. There is evidence that low-income countries, despite lower spending envelopes, attach greater priority to public investment and infrastructure spending than their middle-income counterparts. Econometric analysis suggests that infrastructure spending in low- and middle-income countries has been historically procyclical, although to a lesser degree than total expenditure. In the transport sector, road funds are shown to play a substantial role in funding road maintenance, appearing to improve the adequacy of funding, while attenuating pronounced capital biases in road sector spending, but there is little evidence of efficiency improvements over time.Publication What Have We Learned about the Effectiveness of Infrastructure Investment as a Fiscal Stimulus? A Literature Review(World Bank, Washington, DC, 2021-10) Vagliasindi, Maria; Gorgulu, NisanSince the Great Depression of the 1930s, and through the more recent Asian Crisis of 1997 and Great Recession of 2008/09, governments have experimented with Keynesian style fiscal stimulus to support employment and accelerate economic recovery. The effectiveness of these policies depends on the size of fiscal multipliers. A large body of economic literature has estimated such multipliers, with gradually increasing precision, due to econometric improvements and better ways to identify fiscal impulses. Overall, the largest multipliers are found to be associated with public investment, as opposed to other types of spending. Such public investment multipliers are typically below one in the short run, but studies with multi-year horizons suggest that values higher than unity can be attained over time. The size of multipliers is sensitive to economic conditions. During recessions, and periods of high unemployment, transfer payments appear sometimes to offer higher multipliers than public investment. An important exception is when fiscal and monetary policies are closely coordinated and interest rates approach zero, conditions that provide the strongest evidence for the efficacy of public investment multipliers. Other institutional factors also play a crucial role in determining the size of the public investment multiplier, in particular the country’s absorptive capacity, and the selection of high-quality shovel ready projects. However, there is limited empirical evidence available on the magnitude of fiscal multipliers in developing country settings, or for infrastructure sectors or subsectors specifically. The few studies available suggest that certain types of green infrastructure (energy efficiency, solar energy, and so forth) may bring employment benefits in the short run, while innovative digital infrastructure may yield longer-run benefits for economic growth. The relevance of these findings to the current COVID-19 crisis is explored.Publication Political Dividends of Digital Participatory Governance: Evidence from Moscow Pothole Management(World Bank, Washington, DC, 2020-10) Gorgulu, Nisan; Sharafutdinova, Gulnaz; Steinbuks, JevgenijsThis study takes advantage of a publicly salient policy sphere -- road quality -- in the Russian Federation's capital city to explore the use of digital technologies as means of aggregating information and demonstrating government capacity and effectiveness. It focuses on the potential linkage between road quality based on citizens' complaints and electoral outcomes in two rounds of Moscow mayoral elections in 2013 and 2018. The data on more than 200,000 online potholes’ complaints were collected and combined with local election data. The causal relationship between these two processes is established, making use of an arguably exogenous variation in the differences across local weather conditions during the heating season that differentially affects pothole creation but is uncorrelated with electoral outcomes. The results indicate that greater use of digital technologies (measured by pothole complaints) results in an increased number of votes and a higher margin of victory for the incumbent. They highlight digital technologies' role as a tool to create participatory governance mechanisms and convey to the public an image of a transparent, responsive, and capable government.