"Empirical explorations of the growth and productivity impacts of infrastructure have been characterized by ambiguous (countervailing signs) results with little robustness. A number of explanations of the contradictory findings have been proposed. These range from the crowd-out of private by...

This paper uses newly available firm-level tax data to evaluate the market structure in South African manufacturing sectors in the period 2010-12. To describe the market structure we compute markups for South African manufacturing firms and concentration indexes for 4-digit manufacturing...