I develop a model of firm-to-firm search and matching to show that the impact of falling trade costs on firm sourcing decisions and consumer welfare depends on the relative size of search externalities in domestic and international markets. These externalities can be positive if firms share information about potential matches, or negative if the market is congested. Using unique firm-to-firm transaction-level data from Uganda, I document empirical evidence consistent with positive externalities in international markets and negative externalities in domestic markets. I then build a dynamic quantitative version of the model and show that, in Uganda, a 25% reduction in trade costs led to a 3.7% increase in consumer welfare, 12% of which was due to search externalities.
This Selected Issues paper reviews key trends in Haiti’s fiscal performance over the past decade and discusses various options for strengthening the fiscal system. It suggests that a key challenge will be to generate adequate resources to support development, which requires an increase in outlays on social programs, security, and infrastructure investment to at least the levels observed in other low-income countries. The paper reviews revenue trends and key features of the tax system. It also illustrates that Haiti’s public sector employment is far smaller than in other countries.
This paper uses a dynamic general equilibrium model calibrated to Ugandan data to examine the welfare effects of alternative scenarios of government expenditure and tax financing. Two expenditure types are considered: social spending that affects human capital, and infrastructure expenditures that affect productivity. The paper finds that social expenditures lead to higher economic growth depending on the form of financing; young generations benefit most from social spending financed by consumption taxes; agents do not substitute between human and physical capital as a result of changes in expenditure composition; and improving the productivity of fiscal expenditure is both growth and welfare enhancing.
This Selected Issues paper and Statistical Appendix describes how to improve value-added tax (VAT) compliance in Uganda. The paper highlights that although the VAT in Uganda has a single positive rate and broad coverage, its initial threshold of U Sh 20 million may have been set too low, and a number of items that should have been exempted were zero rated. This paper presents a brief survey of the financial sector of Uganda. Public sector reforms and the privatization program are also discussed.