Micro and small enterprises (MSEs)*(2) are an inescapable feature of the economic and social landscape of most developing economies. Typically, developing countries have a large number of MSEs, and these employ a substantial proportion of a country's working age population. Recent nationwide surveys in several African countries show that between 16 per cent and 33 per cent*(3) of each country's working age populations work in MSEs. Furthermore, a substantial amount of income is typically generated by these activities, both at the household and at the national level. In a recent study of Kenyan MSEs, Daniels (1999) estimated that the MSE sector contributes 13 per cent to national income.
SAJE v68(3) p515Among scholars, policy-makers and donor agencies there has been an increasing awareness of the importance of the MSE sector in the development process. Indeed, many governments in Africa have explicitly included MSE programs as part of their national economic plans. However, while much is known about the nature and magnitude of the MSE sector in many African countries, much less is known about how these sectors evolve over time. A particular problem involves the relationship between the MSE sector and structural adjustment. In recent years, many developing countries have been compelled by external and internal imbalances to radically alter their macroeconomic policies. How does the implementation of these policies affect the MSE sector? How does the influx of workers into the MSE sector resulting from retrenchments of civil servants and employees of state-owned enterprises change the face of the sector? To what extent do the changes in macroeconomic variables affect MSEs? Many such questions, although important, have not been studied or answered. Beginning in about 1991, the government of Zimbabwe began a structural adjustment program. In that same year, a nation-wide survey of MSEs was conducted in Zimbabwe. Repeat surveys using the same methodology and sample areas were repeated in 1993 and 1998. In principle, these surveys present a unique opportunity to learn about the relationship between the structural adjustment process and the MSE sector. However, it should be noted from the start that it will not be possible to fully understand the effects of structural adjustment on the MSE sector, since other events occurred both within and without Zimbabwe over the same period, including the drought of 1991-92 and the
SAJE v68(3) p516ongoing AIDS pandemic.*(4) These and other events make it difficult to parse out the relationship between structural adjustment and the MSE sector. Nevertheless, some lessons can be learned from a close examination of the data.