Do urban agglomeration economies enhance the social profitability of rural roads? When all goods are traded at parametric world prices, lower transport costs benefit villagers. Urban activities and welfare are unaffected if labour is immobile, but their levels fall when rural workers move freely...

In the presence of agglomeration economies, the effects of a rural roads programme depend not only on the reduction in transportation costs, but also on the form of labour mobility. When financed by a poll tax on rural households, the wage will rise, accompanied by some return migration,...

The structure employed is a small open economy, with one city and a rural hinterland, two traded goods, a transport sector, two specific factors, and mobile labour. A socially profitable programme will promote not only internal, but also external trade. Theory and numerical examples indicate...

We look at how improving roads can affect jobs and structural transformation. We use a novel geocoded dataset covering the universe of Ethiopian roads and match this information with individual data to identify the effects of improvements in road infrastructure on the creation, quality, and...

Service industries are increasingly important in international trade and offer additional paths to economic development. There are many opportunities to expand trade in services between South Africa and other African countries. Improvements in urban planning, design, and governance are vital to...

The paper evaluates strategies for developing successful special economic zones and transnational zones for Southern African countries to spur growth and employment. Most special economic zones implemented in Southern Africa have largely failed to bring adequate growth and employment due to...

Donors face distinct challenges in operating in fragile states and supporting the building of state capacity. This paper explores one type of assistance - the 'embedding' of highly-skilled staff members within local government agencies - through a unique case study of Finn Church Aid's...

Randomized controlled trials (RCTs) are now widely used in development economics. However, their use is often resisted by non-governmental development organizations. The objections they raise differ between the three types of activities of such non-governmental organizations (NGOs): capacity...

This paper re-examines the validity of using expected values to evaluate the social profitability of public investments under uncertainty. Departing from the usual assumption of an aggregate good, the setting is a small open economy that faces stochastic world prices for tradable goods and...