In this paper we investigate if the predictions of three different models of capital adjustment costs are consistent with the observed investment patterns among manufacturing firms in five African countries. We document a high frequency of zero investment episodes, which is consistent with both...

Using matched employer-employee data from ten African countries, we examine the relationship between wages, worker supervision, and labor productivity in manufacturing. Wages increase with firm size for both production workers and supervisors. We develop a two-tier model of supervision that can...

Cobb Douglas production function parameters are not identified from cross-section variation when inputs are perfectly flexible and chosen optimally, and input prices are common to all firms. We consider the role of adjustment costs for inputs in identifying these parameters in this context. The...

The poor performance of many African economies has been associated with low growth of exports in general and of manufacturing exports in particular. In this paper, we draw on micro-evidence of manufacturing firms in five African countries, Kenya, Ghana, Tanzania, South Africa and Nigeria, to...

Do openness to trade and higher levels of human capital promote faster productivity growth? That they do is a key implication of several versions of endogenous growth theory. To answer the question we use panel data on 93 countries spanning the 1970-2000 period. Controlling for fixed effects as...

Recent reforms in most African economies of their trading and exchange rate regimes have eliminated much of the protection which previously limited competition. Despite these reforms, African manufacturing firms remain unsuccessful, particularly in international export markets. In this paper we...

Using matched employer-employee data on 10 African countries, this paper examines the relationship beween wages, worker supervision, and labor productivity in manufacturing. Wages increase with firm size for both production workers and supervisors. We develop a two-tier model of supervision that...

bel and Eberly (1999) show that the effect of uncertainty on long run capital accumulation is ambiguous in a real options model with irreversible investment. We show that a higher level of uncertainty tends to reduce expected capital stock levels in a model with strictly convex adjustment costs....

We study the sensitivity of investment to cash flow conditional on measures of q in an adjustment costs framework with costly external …nance. We present a benchmark model in which this conditional investment-cash flow sensitivity increases monotonically with the cost premium for external …-...

Three dimensions of the performance of firms in Ghana’s manufacturing sector are investigated in this paper: their technology and the importance of technical and allocative efficiency. We show that the diversity of factor choices in not due to a non-homothetic technology. Observable skills are...