This paper presents robust panel data econometric evidence suggesting that more effective competition policy curtails the exercise of market power because countries in which competition policy is judged to be more effective are characterised by lower market price-cost margins, controlling for...

Numerous methods have been proposed for calculating the Gini coefficient, the most widely used statistical measure of income inequality. The Milanovic (Bulletin of Economic Research, 46, 81-90, 1994) measure is simple, accurate and has attractive decomposition properties. However its use is...