03. Journals
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These are journal articles published in World Bank journals as well as externally by World Bank authors.
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Publication Taxing the Good? Distortions, Misallocation, and Productivity in Sub-Saharan Africa(Published by Oxford University Press on behalf of the World Bank, 2020-02) Cirera, Xavier; Maemir, HibretThis paper uses comprehensive and comparable firm-level manufacturing censuses from four Sub-Saharan African (SSA) countries to examine the extent, costs, and nature of within-industry resource misallocation between heterogeneous production units. This paper finds evidence of severe misallocation in which resources are diverted away from high-productivity firms towards low-productivity ones, although the magnitude differs across countries. Estimated aggregate productivity gains from the hypothetical equalization of marginal returns range from 30 percent in Côte d’Ivoire to 160 percent in Kenya. The magnitude of reallocation gains appears considerably lower when performing the same counterfactual exercise based on the World Bank Enterprise Surveys once the value-added shares of industries are adjusted using the census data. This suggests that linking firm-level survey data to aggregate outcomes requires census-type data or sampling methods that take the true structure of production into account.Publication The Devil is in the Detail: Growth, Inequality and Poverty Reduction in Africa in the Last Two Decades(Oxford University Press, 2019-08) Clementi, Fabio; Fabiani, Michele; Molini, VascoThe present paper, starting from evidence of low growth-to-poverty elasticity characterizing Africa, purports to identify the distributional changes that limited the pro-poor impact of the last two decades’ growth. Distributional changes that went undetected by standard inequality measures were not showing a clear pattern of inequality on the continent. By applying a new decomposition technique based on a non-parametric method—the ‘relative distribution’—we found a clear distributional pattern affecting almost all analysed countries. Nineteen out twenty four countries experienced a significant increase in polarization, particularly in the lower tail of the distribution, and this distributional change lowered the pro-poor impact of growth substantially. Without this unfavorable redistribution, poverty could have decreased in these countries by an additional five percentage points.Publication Agriculture, Aid, and Economic Growth in Africa(Published by Oxford University Press on behalf of the World Bank, 2019-02) McArthur, John W.; Sachs, Jeffrey D.How can foreign aid to agriculture support economic growth in Africa? This paper constructs a geographically indexed applied general equilibrium model that considers pathways through which aid might affect growth and structural transformation of labor markets in the context of soil nutrient variation, minimum subsistence consumption requirements, domestic transport costs, labor mobility, and constraints to self-financing of agricultural inputs. Using plausible parameters, the model is presented for Uganda as an illustrative case. We present three stylized scenarios to demonstrate the potential economy-wide impacts of both soil nutrient loss and replenishment, and how foreign aid can be targeted to support agricultural inputs that boost rural productivity and shift labor to boost real wages. One simulation shows how a temporary program of targeted official development assistance (ODA) for agriculture could generate, contrary to traditional Dutch disease concerns, an expansion in the primary tradable sector and positive permanent productivity and welfare effects, leading to a steady decline in the need for complementary ODA for budget support.Publication Dictators Walking the Mogadishu Line: How Men Become Monsters and Monsters Become Men(Published by Oxford University Press on behalf of the World Bank, 2018-10) Larcom, Shaun; Sarr, Mare; Willems, TimHistory offers many examples of dictatorswho worsened their behavior significantly over time (like Zimbabwe’s Mugabe) as well as dictators who displayed remarkable improvements (like Rawlings of Ghana).We show that such mutations can result from rational behavior when the dictator’s flow use of repression is complementary to his stock of wrongdoings: past wrongdoings then perpetuate further wrongdoings and the dictator can unintentionally get trapped in a repressive steady state where he himself suffers from ex-post regret. This then begs the question why such a dictator would ever choose to do wrong in the first place. We show that this can be explained from the dictator’s uncertainty over his degree of impunity in relation to wrongdoing, which induces him to experiment along this dimension. This produces a setting where any individual rising to power can end up as either a moderate leader, or as a dreaded tyrant. Since derailment is accidental and accompanied by ex-post regret, increasing accountability can be in the interest of both the public and the dictator.Publication Who Benefited from Burundi’s Demobilization Program?(Published by Oxford University Press on behalf of the World Bank, 2018-06) D’Aoust, Olivia; Sterck, Olivier; Verwimp, PhilipThis paper assesses the impact of the demobilization, reinsertion and reintegration program in post-war Burundi. Two major rebel groups benefited from cash and in-kind transfers, the CNDD-FDD from 2004, and the FNL from 2010. We combine panel data of households collected in 2006 and 2010 with official records from the National Commission for Demobilization, Reinsertion and Reintegration. We find that the cash payments received by FNL demobilized households had a positive impact on consumption, nonfood spending and investments. The program also generated positive spillovers in the villages where FNL combatants returned. Ex-combatants indeed spent a large part of their allowance on consumption goods and clothing, thereby generating a short-run economic boom in villages. However, the long-run evolution of consumption indicators is negative for CNDD-FDD households, as well as for villages where CNDD-FDD combatants returned, suggesting that the direct impact and the spillovers of the program vanished in the long run.Publication Geopolitics, Aid, and Growth: The Impact of UN Security Council Membership on the Effectiveness of Aid(Published by Oxford University Press on behalf of the World Bank, 2018-06) Dreher, Axel; Eichenauer, Vera Z.; Gehring, KaiWe investigate the effects of short-term political motivations on the effectiveness of foreign aid. Specifically, we test whether the effect of aid on economic growth is reduced by the share of years a country served on the United Nations Security Council (UNSC) in the period the aid is committed, which provides quasi-random variation in aid. Our results show that the effect of aid on growth is significantly lower when aid was committed during a country’s tenure on the UNSC. This holds when we restrict the sample to Africa, which follows the strictest norm of rotation on the UNSC and thus where UNSC membership can most reliably be regarded as exogenous. We derive two conclusions from this. First, short-term political favoritism reduces the effectiveness of aid. Second, results of studies using political interest variables as instruments for overall aid arguably estimate the effect of politically motivated aid and thus a lower bound for the effect of all aid.Publication The Changing Structure of Africa’s Economies(Published by Oxford University Press on behalf of the World Bank, 2017-06-01) Diao, Xinshen; Harttgen, Kenneth; McMillan, MargaretUsing data from the Groningen Growth and Development Center’s Africa Sector Database and the Demographic and Health Surveys, we show that much of Africa’s recent growth and poverty reduction has been associated with a substantive decline in the share of the labor force engaged in agriculture. This decline is most pronounced for rural females over the age of 25 who have a primary education; it has been accompanied by a systematic increase in the productivity of the labor force, as it has moved from low productivity agriculture to higher productivity services and manufacturing. We also show that, although the employment share in manufacturing is not expanding rapidly, in most of the low-income African countries the employment share in manufacturing has not peaked and is still expanding, albeit from very low levels. More work is needed to understand the implications of these shifts in employment shares for future growth and development in Africa south of the Sahara.Publication Budget Rules and Resource Booms and Busts: A Dynamic Stochastic General Equilibrium Analysis(Published by Oxford University Press on behalf of the World Bank, 2017-02) Devarajan, Shantayanan; Go, Delfin S.This 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 Remittances and Vulnerability in Developing Countries(Published by Oxford University Press on behalf of the World Bank, 2017-02) Bettin, Giulia; Presbitero, Andrea F.; Spatafora, Nikola L.This paper examines how international remittances are affected by structural characteristics, macroeconomic conditions, and adverse shocks in recipient economies. We exploit a novel, rich panel data set, covering bilateral remittances from 103 Italian provinces to seventy-nine developing countries over the period 2005–2011. We find that remittances are negatively correlated with the business cycle in recipient countries and in particular increase in response to adverse exogenous shocks, such as large terms-of-trade declines. This effect is stronger where the migrant communities have a larger share of newly arrived migrants. Finally, we show that recipient-country financial development is negatively associated with remittances, suggesting that remittances help alleviate credit constraints.Publication The Price Is Not Always Right: On the Impacts of Commodity Prices on Households (and Countries)(Published by Oxford University Press on behalf of the World Bank, 2016-02) Lederman, DanielThis paper provides an overview of the impact that one-time changes in commodity and other prices have on household welfare. It begins with a collection of stylized facts related to commodities based on household survey data from Latin America and Africa. The data uncovers strong commodity dependence on both regions: households typically allocate a large fraction of their budget to commodities, and they often also depend on commodities to earn their income. This income and expenditure dependency suggests sizable impacts and adjustments following commodity price shocks. The article explores these effects with a review of the relevant literature. The authors study consumption and income responses, labor market responses, and spillovers across sectors. The paper provides evidence on the relative magnitudes of various mechanisms through which commodity prices affect household (and national) welfare in developing economies. Commodity price changes, Poverty and welfare impacts, Net consumers and net producers.