Go, Delfin Sia
Development Prospects Group, World Bank
Author Name Variants
Fields of Specialization
Development and Growth Economics; Africa Development; Economic Modeling and Tools for Fiscal Analysis; Aid Effectiveness and Management
Development Prospects Group, World Bank
Externally Hosted Work
Last updated July 11, 2023
Delfin Go is Lead Economist in the Development Prospects Group and oversees the economic modeling and information team, which produces forward-looking and long-term scenarios that underpin special reports such as the Global Monitoring Report and the Global Development Horizons. Delfin was the lead author and task manager of the Global Monitoring Report 2011: Improving the Odds of Achieving the MDGs and the Global Monitoring Report 2010: The Millennium Development Goals After the Crisis. He was formerly Lead Economist in the office of the World Bank’s Africa Region Chief Economist, where he focused on macroeconomic issues, aid effectiveness and management, and conducted Country Policy and Institutional Assessments (CPIA) of African countries. He has also undertaken analytical work on debt issues, tools for fiscal analysis, and macro-micro linkages for probing the distributional consequences and the impact on growth, poverty, and other MDGs of alternative macroeconomic frameworks, external shocks, aid flows, as well as the composition of public expenditure. Previously, he served as the World Bank’s Country Economist and PREM Cluster Leader of Southern Africa (South Africa, Botswana, Lesotho and Namibia) and Zambia. Go first joined the World Bank as a Research Economist at the Development Research Group. Go holds a Ph.D. in Political Economy and Government from Harvard University.
Publication Search Results
Now showing 1 - 10 of 14
Publication(World Bank, Washington, DC, 2013-11) Go, Delfin S. ; Robinson, Sherman ; Thierfelder, Karen ; Utz, RobertThis paper examines spending plans suggested by the recent literature regarding Dutch disease and examines their implications to Niger relative to its expanding mineral sector. The key to the benefits of significant mineral revenue lies with the productivity and supply responses of spending. If significant output gain is ensured, then there is little difference across the spending plans in their effects on real consumption. The overshooting of relative prices of the non-tradable sector or the shrinking share of traded sectors in gross domestic product is also ameliorated with greater supply flexibility. Growth paths of alternative spending strategies differ markedly in timing and pattern when spending does not raise productivity. As a caution against expectations that exaggerate the benefits of mineral revenue under all circumstances, the more aggressive spending plan may result in a boom-bust cycle if fiscal adjustments and debt repayments are necessary for any significant borrowing against future revenue and productivity gains are not realized. Using extractive industries revenue for transfers to households would have a greater effect on poverty reduction in the short and medium term but the long-run gains from investment in human and physical capital are likely to offset the initial lack of pro-poor bias. Different strategies differ significantly with regard to risks and required technical implementation capacity and political capacity to sustain a chosen course of action.
Publication(Published by Oxford University Press on behalf of the World Bank, 2012-08) Go, Delfin S. ; Quijada, José AlejandroThree questions are frequently raised about the attainment of the Millennium Development Goals (MDGs). Where do developing countries stand? What factors affect their rate of progress? Can lagging countries achieve these goals in the few years remaining until 2015? This paper examines these questions and takes a closer look at the variation in the rate of progress among developing countries. We argue that answers from the available data are surprisingly positive. In particular, three-quarters of developing countries are on target or close to being on target for all of the MDGs. Among the countries that are falling short, the average gap for the top half is about 10 percent. For those that are on target, or close to it, solid economic growth, policies, and institutions have been the key factors in their success. With improved policies and stronger growth, many countries that are close to being on target could achieve these targets by 2015 or soon after.
Publication(World Bank Group, Washington, DC, 2014-07) Devarajan, Shantayanan ; Dissou, Yazid ; Go, Delfin S. ; Robinson, ShermanThis paper develops a dynamic stochastic general equilibrium model to analyze and derive simple budget rules in the face of volatile public revenue from natural resources in a low-income country like Niger. The simulation results suggest three policy lessons or rules of thumb. When a resource price change is positive and temporary, the best strategy is to save the revenue windfall in a sovereign fund, and use the interest income from the fund to raise citizens' consumption over time. This strategy is preferred to investing in public capital domestically, even when private investment benefits from an enhanced public capital stock. Domestic investment raises the prices of domestic goods, leaving less money for government to transfer to households; public investment is not 100 percent effective in raising output. In the presence of a negative temporary resource price change, however, the best strategy is to cut public investment. This strategy dominates other methods, such as trimming government transfers to households, which reduces consumption directly, or borrowing, which incurs an interest premium as debt rises. In the presence of persistent (positive and negative) shocks, the best strategy is a mix of public investment and saving abroad in a balanced regime that provides a natural insurance against both types of price shocks. The combination of interest income from the sovereign fund, transfers to households, and output growth brought about by public investment provides the best protective mechanism to smooth consumption over time in response to changing resource prices.
Publication(World Bank, Washington, DC, 2014-12) Ahmed, S. Amer ; Cruz, Marcio ; Go, Delfin S. ; Maliszewska, Maryla ; Osorio-Rodarte, IsraelAfrica will be undergoing substantial demographic changes in the coming decades with the rising working age share of its population. The opportunity of African countries to convert these changes into demographic dividends for growth and poverty reduction will depend on several factors. The outlook will likely be good if African countries can continue the gains already made under better institutions and policies, particularly those affecting the productivity of labor, such as educational outcomes. If African countries can continue to build on the hard-won development gains, the demographic dividend could account for 11 to 15 percent of gross domestic product volume growth by 2030, while accounting for 40 to 60 million fewer poor in 2030. The gains can become much more substantial with even better educational outcomes that allow African countries to catch up to other developing countries. If the skill share of Africa's labor supply doubles because of improvements in educational attainment, from 25 to about 50 percent between 2011 and 30, then the demographic dividends can expand the regional economy additionally by 22 percent by 2030 relative to the base case and reduce poverty by an additional 51 million people.
Estimating Parameters and Structural Change in CGE Models Using a Bayesian Cross-Entropy Estimation Approach(World Bank Group, Washington, DC, 2015-01) Go, Delfin S. ; Lofgren, Hans ; Mendez Ramos, Fabian ; Robinson, ShermanThis paper uses a three-step Bayesian cross-entropy estimation approach in an environment of noisy and scarce data to estimate behavioral parameters for a computable general equilibrium model. The estimation also measures how labor-augmenting productivity and other structural parameters in the model may have shifted over time to contribute to the generation of historically observed changes in the economic arrangement. In this approach, the parameters in a computable general equilibrium model are treated as fixed but unobserved, represented as prior mean values with prior error mass functions. Estimation of the parameters involves using an information-theoretic Bayesian approach to exploit additional information in the form of new data from a series of social accounting matrices, which are assumed were measured with error. The estimation procedure is "efficient" in the sense that it uses all available information and makes no assumptions about unavailable information. As illustration, the methodology is applied to estimate the parameters of a computable general equilibrium model using alternative data sets for the Republic of Korea and Sub-Saharan Africa.
Publication(World Bank, Washington, DC, 2016-05) Lakatos, Csilla ; Maliszewska, Maryla ; Osorio-Rodarte, Israel ; Go, DelfinThis paper explores the economic impacts of two related tracks of China's expected transformation—economic slowdown and rebalancing away from investment toward consumption—and estimates the spillovers for the rest of the world, with a special focus on Sub-Saharan African countries. The paper finds that an average annual slowdown of gross domestic product in China of 1 percent over 2016–30 is expected to result in a decline of gross domestic product in Sub-Saharan Africa by 1.1 percent and globally by 0.6 percent relative to the past trends scenario by 2030. However, if China's transformation also entails substantial rebalancing, the negative income effects of the economic slowdown could be offset by the positive changes brought along by rebalancing through higher overall imports by China and positive terms of trade effects for its trading partners. If global supply responds positively to the shifts in relative prices and the new sources of consumer demand from China, a substantial rebalancing in China could have an overall favorable impact on the global economy. Economic growth could turn positive and higher on average, by 6 percent in Sub-Saharan Africa and 5.5 percent globally, as compared with the past trends scenario. Finally, rebalancing reduces the prevalence of poverty in Sub-Saharan Africa compared with the isolated negative effects of China's slowdown, which slightly increase the incidence of poverty. Overall, China's slowdown and rebalancing combined are estimated to increase gross domestic product in Sub-Saharan Africa by 4.7 percent by 2030 and reduce poverty, but the extent of this varies by country.
Global Migration Revisited: Short-Term Pains, Long-Term Gains, and the Potential of South-South Migration(World Bank, Washington, DC, 2016-04) Ahmed, S. Amer ; Go, Delfin S. ; Willenbockel, DirkThis paper re-examines the development implications of international migration focusing on two issues: how the costs and benefits of migration change over time, and the significance of South-South migration for development. First, the analysis finds that although greater migration could push down the wages of native workers of advanced countries in the short run, these wages eventually recover. This pattern would be mostly caused by the beneficial effect of additional labor on the real returns on capital and fostering faster capital formation. Additional South-North migration could favor capital income recipients and reduces labor income in host regions in the short run. In contrast, in sending countries, capital owners could experience lower incomes while wages rise. Globally, the welfare gains of new migrants could be expected to exceed the losses of old migrants by a wide margin. The remaining natives in sending countries could enjoy a net increase in remittances as well as an increase in labor income, although income from capital might decline. Second, in a hypothetical scenario with lower South-South migration, the implied losses of remittance income could lead to substantially lower welfare in developing countries. Although the wage differentials among developing countries tend to be smaller relative to their wage differentials with high-income countries, South-South migrants make substantial contributions to remittances.
No Thumbnail AvailablePublication( 2010) Go, Delfin S. ; Kearney, Marna ; Korman, Vijdan ; Robinson, Sherman ; Thierfelder, KarenWe use a general equilibrium model to analyse the employment effects and fiscal cost of a wage subsidy in South Africa. We capture the structural characteristics of the labour market with several labour categories and substitution possibilities, linking the economy-wide results to a micro-simulation model with occupational choice probabilities to investigate the poverty and distributional consequences. The employment impact depends greatly on the elasticities of substitution of factors of production, being very minimal if unskilled and skilled labour are complements in production. The impact is improved by supporting policies, but the gains remain modest if the labour market is rigid.
Publication(World Bank, Washington, DC, 2013-06) Devarajan, Shantayanan ; Go, Delfin S. ; Maliszewska, Maryla ; Osorio-Rodarte, Israel ; Timmer, HansAfter an impressive acceleration in growth and poverty reduction since the mid-1990s, many African countries continue to register robust growth in the aftermath of the global financial crisis. Will this growth persist, given the tepid recovery in developed countries, numerous weather shocks, and civil conflicts in Africa? This paper "stress tests" African economies. The findings indicate that Africa's long-term growth is fairly impervious to a prolonged recession in high-income countries. Growth is, however, much more sensitive to a disruption of capital flows to the region, and to internal shocks, such as civil conflict and drought, even if the latter follow historical patterns. The broad policy implication is that with proper domestic production conditions African countries can sustain robust long-term growth. Because of the economic dominance of the agriculture sector and the share of food in household budgets, countries will need to increase the resilience of agriculture and protect it from unfavorable climate change impacts, such as drought. As in the past, civil conflicts and violence will pose by far the greatest threat to Africa's performance.
Publication( 2011-10-01) Go, Delfin S. ; Quijada, Jose AlejandroHow many countries are on target to achieve the Millennium Development Goals by 2015? How many countries are off target, and how far are they from the goals? And what factors are essential for improving the odds that off-target countries can reach the goals? This paper examines these questions and takes a closer look at the diversity of country progress. The authors argue that the answers from the available data are surprisingly hopeful. In particular, two-thirds of developing countries are on target or close to being on target for all the Millennium Development Goals. Among developing countries that are falling short, the average gap of the top half is about 10 percent. For those countries that are on target, or close to it, solid economic growth and good policies and institutions have been the key factors in their success. With improved policies and faster growth, many countries that are close to becoming on target could still achieve the targets in 2015 or soon after.