The process of economic development is characterized by substantial reallocations of resources across sectors. In this paper, we construct a multi-sector model in which there are barriers to the movement of labor from low-productivity traditional agriculture to modern sectors. With the barrier in place, we show that improvements in productivity in modern sectors (including agriculture) or reductions in transportation costs may lead to a rise in agricultural employment and through terms-oftrade effects may harm subsistence farmers if the traditional subsistence sector is larger than a critical level. This suggests that policy advice based on the earlier literature needs to be revised. Reducing barriers to mobility (through reductions in the cost of skill acquisition and institutional changes) and improving the productivity of subsistence farmers needs to precede policies designed to increase the productivity of modern sectors or decrease transportation costs.
This Background Paper presents a long-term perspective on investment and output performance in Uganda, beginning after the country gained independence in the early 1960s. Against the background of long-term trends in savings, investment, and output, the paper describes the initial conditions that led to the adoption of adjustment policies. The macroeconomic policy mix, together with important structural policies, is analyzed and the outcomes are assessed for 1987–94, during which Uganda pursued an ongoing adjustment program supported by successive arrangements with the IMF under the structural adjustment facility and the enhanced structural adjustment facility.