Comparing large samples of merger markets for NZ and the US, and controlling for case-mix differences within samples using single competition variables, Pickford (2012) found that the proportion of markets challenged was lower in NZ. We extend this analysis using discrete choice modelling to...

A market structure-performance model is used to search for a structural break in the leading firm market share-profitability relationship. The model, incorporating both market power and efficiency variables to account for variations in price-cost margins, is tested using cross-section 1978/79...