The article studies the relation between the 1997 crisis and the diversification of the 5 main business groups in Colombia. The entropy measure of diversification did not fall during the crisis, which agrees with the risk-sharing hypothesis of business groups. Diversification fell after the...

The article studies the diversification behavior of four large diversified Colombian business groups five years before and after the 1991 trade opening, as measured by the entropy index. It is shown that the trade opening did not lead the business groups to reduce their diversification but...