Abstract

The connections between transport infrastructure and economic development have been extensively analyzed in previous research, but little is known about the cost of infrastructure investments in poor countries. This paper examines drivers of unit costs of construction and maintenance of transport infrastructure in low and middle income countries and documents that: (i) there is a large dispersion in unit costs for comparable road work activities; (ii) after accounting for environmental drivers of costs, residual unit costs are significantly higher in conflict countries; (iii) there is evidence that costs are higher in countries with higher levels of corruption; (iv) these effects are robust to controlling for a country’s public investment capacity and business environment. Our findings have implications for governments aiming to increase connectivity in poor countries. Document type: Book

Abstract

The objective of this study is to assess the impact of the East-West Highway improvement program on Georgia’s ability to access international markets. As highlighted extensively in the literature, improving transport infrastructure and the efficiency of the logistics sector can help countries gain competitiveness in international export markets, which can translate into faster economic growth and higher income. This study hypothesizes that investments in the EWH have reduced the cost of shipping Georgian goods to the rest of the world, and such reductions should be more significant for goods transported by road. To estimate the effect of cost reductions generated by improvements in the EWH, a gravity-type model in first-differences has been estimated. The results show that: (i) a 10 percent increase in the length of upgraded road network predicts a 1.1 percent increase in exports transported by road while no significant effect is estimated for exports on other transport modes (rail, sea, and air); (ii) the resulting increase in exports by road was reflected by a decrease in exports transported by sea; (iii) the effect is statistically and economically significant only for customs offices located along the EWH; (iv) only exports of time-sensitive products responded positively and significantly to improvements in the EWH during the 2006-2015 period; (v) upgrading the entire EWH is estimated to generate additional export revenues between USD 776 million and USD 1,466 million. It is important to note that the overall trade generating effect of the investment is expected to be somewhat lower as the results suggest some substitution between road and sea transport, but the overall impact is a significant boost to exports.

Abstract

The objective of this study was to assess the economy wide indirect benefits of investments in the East West highway (EWH). This study has used a computable general equilibrium (CGE) model, which simulates indirect benefits associated with the completion of the upgraded road corridor. The transmission channel modeled is the reduction in transportation costs - reduction in vehicle operating costs, and time savings - resulting from the investments in the EWH. A CGE model is a simultaneous equation system that consists of equations representing various economic relationships for different economic agents, such as producers and households. CGE models are commonly used by countries and international financial institutions to simulate policy interventions to determine economy-wide impacts. This study involved modifying the existing social accounting matrix (SAM) and CGE model in order to carry out simulations to answer the question of economy wide impacts of the EWH investments, including impacts on real gross domestic product (GDP) growth, jobs, and trade, as well as impacts on households disaggregated by income. It aims to answer the following questions: how will the EWH lower the transportation costs for producers of goods and services?; what are the economy wide impacts of the EWH on employment, real GDP growth, trade, and household income?; and can the EWH help bridge the existing economic divide between rural and urban areas in Georgia? The study is aims to simulate quantitatively how the EWH as a large-scale infrastructure investment program can bring significant stimulus to foster economic growth and welfare in Georgia.

Abstract

Regional integration in sub-Saharan Africa (SSA) is crucial for its further economic development and, more importantly, its structural transformation away from agriculture towards higher value-added activities, such as manufacturing and services. Yet there are many paths towards greater integration, some of which are easier than others. In order to gain insights into how regional integration is occurring in SSA, determine impediments to it, and develop recommendations for how the World Bank and other development agencies can help further facilitate it, the World Bank commissioned a set of political economy of regional integration studies covering sector analyses of agriculture, financial services, professional services, trade facilitation, and transport. This report summarizes the findings from the sector studies and suggests recommendations for further efforts in these areas by the World Bank and other development agencies. In a comparative context, the findings of the studies suggest cautious optimism for regional integration efforts in sub-Saharan Africa. Economic integration is more likely to succeed when it occurs alongside regional attempts at improving political stability and or developing joint infrastructure.

Abstract

This paper estimates the volume of informal trade between Algeria and Mali and analyzes its determinants and mechanisms, using a multi-pronged methodology. First, the authors discuss how subsidy policies and the legal framework create incentives for informal trade across the Sahara. Second, the authors provide evidence of the importance of informal trade, drawing on satellite images and surveys with informal traders in Mali and Algeria. The authors estimate that the weekly turnover of informal trade fell from approximately United States (U.S.) 2 million dollars in 2011 to U.S. 0.74 million dollars in 2014, but continues to play a crucial role in the economies of northern Mali and southern Algeria. Profit margins of 20-30 percent on informal trade contribute to explaining the relative prosperity of northern Mali. The authors also show that official trade statistics are meaningless in this context, as they capture less than 3 percent of total trade. Finally, the authors provide qualitative evidence on informal trade actors and mechanisms for the most frequently traded products.