Industry competitiveness is analysed by considering the stability of leadership positions across industries over time. Unlike earlier studies of competition which have concentrated solely on market shares the paper begins by establishing the significance of both the changes in market shares and...

Firms strive to become industry leaders for a number of reasons including the market power that such a position endows upon them, the prestige relating to it as well as the increase in profits that it often results in. In this paper, we concentrate on the duration of survival of leaders and on...