This article presents a methodology for decomposing ex ante forecasting error into exogenous variable error, data revision error, model error and judgement error. This methodology is applied to the forecasts made by the National Institute in February 1975 and February 1976. The first section...

This paper addresses the questions as to the size and causes of earnings differentials in two urban African labor markets, those of Ghana and Tanzania. We have panel data so we can ask how far time invariant unobservables, market ability for short, matters in the determination of earnings. We...

This paper examines the contractual practices of African manufacturing firms using survey data collected in Burundi, Cameroon, Cote d`Ivoire, Kenya, Zambia, and Zimbabwe. Descriptive statistics and econometric results are presented. They show that contractual flexibility is pervasive and that...

The removal of high levels of protection combined with substantial real devaluations has changed the environment in which Ghanaian manufacturing firms have operated in the 1990s. The changes in output, composition and productivity, which have occurred over this period, are examined in this...

The Ghana cocoa market has been extensively liberalised over the period since the mid 1980s. Three issues have been prominent in microeconomic research on the effects of liberalisation on agriculture. The first has been the size of any supply response, the second has been the effect on producers...

ABSTRACT: Real wages in Ghana have fallen substantially over the last twenty years. The question posed by this paper is whether this evidence for wage flexibility implies a competitive market clearing labour market. It is argued that it does not. There is sufficient flexibility in the production...

Health and education are both components of human capital and contributors to human welfare. Oneindex of human welfare, which incorporates income, education and health, shows that Africa’s level of‘human development’ is the lowest of any region in the world. In this paper we will...

In this paper we investigate the implications of labour and capital market imperfections for the relationship between firm size and earnings. To establish that such a question is of interest we need to show that the firm size-wage effect cannot be explained by either the observed or unobserved...