Business risk assessment of the companies on the Mexican Stock Exchange’s sustainable index
(Received: 2014/10/27 - Accepted: 2014/12/15)
This work evaluated the business risk change of 20 companies included on the sustainable index of the Mexican Stock Exchange (BMV). The unlevered beta coefficient was used for this analysis. Two periods were compared: the one before, and the one after including the companies on the index. For each of the 20 companies it was used financial information, stocks closing prices and the stock market index value, over a period of 234 weeks. Then, considering the two periods, the statistical difference between the unlevered beta coefficient averages was calculated. Finally, a hypothesis proof was made to evaluate the business risk change. It was found that for 12 out of the 20 companies, the unlevered beta coefficient suffered a reduction. The findings suggest that it is not enough for the companies to certify as sustainable in order to reduce its business risk.
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