We document a strong decline in corporate-diversification activity since the late 1970's, and we develop a dynamic …, diversification discount, frequency and returns of diversifying mergers, and frequency of refocusing activity …

We find robust evidence that supplier diversification is negatively related to the presence of principal corporate … supplier firm managers from over-diversification and misallocation of internal capital market funds …

We review theory and evidence on corporate diversification, industry structure, and firm strategy from an … organizational economics perspective. First, we examine the implications of transaction cost economics (TCE) for diversification …-cost rationale for unrelated diversification, which focuses on the potential efficiencies from exploiting internal capital markets …

We examine whether institutional investors' portfolio diversification affects corporate diversification and related … practices. Estimating investor portfolio diversification using their holdings' return characteristics, we find a negative … relationship between portfolio and corporate diversification that is robust to a quasi-natural experiment. Further, greater …

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 crisis but this did not lead to the disappearance of business groups …

The article studies the diversification behavior of four large diversified Colombian business groups five years before … business groups to reduce their diversification but rather to maintain it or even increase it, as they left some sectors but …