This paper uses a large cross-country survey of business firms to assess their influence on government policies. It is found that influence is associated with larger, government-owned firms that have a high degree of ownership concentration. In contrast, foreign ownership matters little. It is...

Following the model-based approach of Ellison and Glaeser (1997), we develop a framework to test for the link between concentration, spatial clustering and the size of plants. Concentration is an a-spatial concept of variability that can be measured with the standard locational Gini or the more...