Investment in Africa's Manufacturing Sector: A Four Country Panel Data Analysis

Firm level data for the manufacturing sector in Africa, presented in this paper, shows very low levels of investment. The importance of profit effects on investment is investigated using a flexible accelerator, a specification based on the Euler equation and a simple generalisation of these specificiations. There are controls for firm fixed effects. It is shown that the profit effect is very similar for both the accelerator and Euler equation specifications. A comparison with other studies shows that, for small firms, the effect is much smaller in Africa than for other countries. Reasons for the relative insensitivity of investment to profits in African firms are suggested. For the most general specification tested there are no significant differences in the size of the profit effect across the four countries in the study.     

Credit Constraints in Manufacturing Enterprises in Africa

We investigate the question of whether firms in Africa's manufacturingsector are credit constrained. The fact that few firms obtaincredit is not sufficient to prove constraints, since certainfirms may not have a demand for credit while others may be refusedcredit as part of profit maximising behaviour by banks. To investigatethis question, we use direct evidence on whether firms had ademand of credit and whether their demand was satisfied in theformal credit market, based on panel data on firms in the manufacturingsector from six African countries. Of those firms with a demandfor credit, only a quarter obtained a formal sector loan. Ouranalysis suggests that while banks allocate credit on the basisof expected profits, micro or small firms are much less likelyto get a loan than large firms. We also find that outstandingdebt is positively related with obtaining further lending. Therole of outstanding debt is likely to be a reflection of inefficiencyin credit markets, while the fact that size matters is consistentwith a bias as well, although we cannot totally exclude thatthey reflect transactions costs on the part of banks. We presentan analysis showing how much more profitable small firms mustbe to obtain a loan than large firms.     

Have the returns to education really increased in Vietnam? Wage versus employment effect

Many studies have analyzed changes in the returns to education in globalizing economies using the Mincerian framework. These studies have typically estimated the returns to education in terms of changes in wages rather than employment, effectively ignoring the fact that during globalization not only wages but also employment patterns are affected. In this paper we use four large-scale representative household surveys from the transition economy Vietnam for the period 1998–2006 to estimate the returns to education taking into account both changes in wages and employment. The results show that the estimated increases in returns to education are lower once changes in employment patterns are taken into account.     

Inventories and Risk in African Manufacturing

Using a panel data set for Zimbabwe which includes firm-specific measures of contractual risk, we show that contractual risk has a major effect on the holding input stocks and, to a lesser extent, the constitution of cash reserves. This is consistent with inventories being a hedge against stockout risk. By contrast, firms facing more inter-annual market risk hold less inventories. This suggests that African manufacturers prefer adapting to long-term market fluctuations as they materialise rather than building up inventories. This interpretation is consistent with the finding that high market risk firms also have a low capacity utilisation rate.     

Globalization and the Gender Wage Gap

There are several theoretical reasons why globalization willhave a narrowing as well as a widening effect on the genderwage gap, but little is known about the actual impact, exceptfor some country studies. This study contributes to the literaturein three respects. First, it is a large cross-country studyof the impact of globalization on the gender wage gap. Second,it employs the rarely used ILO October Inquiry database, whichis the most far-ranging survey of wages around the world. Third,it focuses on the within-occupation gender wage gap, an alternativeto the commonly used raw and residual wage gaps as a measureof the gender wage gap. This study finds that the occupationalgender wage gap tends to decrease with increasing economic development,at least in richer countries, and to decrease with trade andforeign direct investment (FDI) in richer countries, but findslittle evidence that trade and FDI also reduce the occupationalgender wage gap in poorer countries.     

Flexible Labour,Firm Performance and the Dutch Job Creation Miracle

Unlike internal (‘functional’) forms of flexibility of labour, external (‘numerical’) forms of flexibility (i.e. high shares of people on temporary contract or a high turnover of personnel) yield substantial savings on a firm’s wage bill. Savings on wage bills lead to higher job growth, but do not translate into higher sales growth. Externally flexible labour appears to be related to lower labour productivity growth, the effects being different for innovating vs non‐innovating firms. We discuss these findings from firm‐level and worker‐level data against the background of the Dutch job creation miracle during the 1980s and 1990s. Modest wage increases and flexibilization of labour markets may indeed create lots of jobs. However, this is likely to happen at the expense of labour productivity growth, raising serious doubts about the long‐run sustainability of a low‐productivity–high‐employment growth path.     

Risk Sharing in Labor Markets

Empirical work in labor economics has focused on rent sharingas an explanation for the observed correlation between wagesand profitability. The alternative explanation of risk sharingbetween workers and employers has not been tested. Using a uniquepanel data set for four African countries, we find strong evidenceof risk sharing. Workers in effect offer insurance to employers:when firms are hit by temporary shocks, the effect on profitsis cushioned by risk sharing with workers. Rent sharing is asymptom of an inefficient labor market. Risk sharing, by contrast,can be seen as an efficient response to missing markets. Ourevidence suggests that risk sharing accounts for a substantialpart of the observed effect of shocks on wages.