Control Corporativo Y Riqueza De Los Accionistas En El Sector Eléctrico Europeo, 2000-2007 (Corporate Control and Shareholder Wealth in the European Power Sector 2000-2007)

This paper analyzes how announce changes in the corporate control (takeover) of Endesa, Hidrocantábrico and Scottish Power affect their stock market returns and the impact that these events have on the stock market returns of competitors of the target firm. Using an “event study” methodology we find that takeovers positively and significantly affect at the 1% level, the stock market return of the target firm. Results are robust across several econometric specifications as GARCH and MCO models. Also, the results suggest the announcement of the launching of a takeover positively and significantly affects the stock market return of the target firm's competitors in industries with high market power