Excessive concentration increases national risk in an uncertain world. This paper views economic and political … diversification as an essential aspect of national risk management aimed at promoting efficiency, growth, and welfare. The paper first … presents economic and political diversification side by side in a cross-country framework and discusses how they interact and …

-offs and write-downs, we examine the impact of loan portfolio sector concentration on credit risk. By controlling for common …

This paper is the first systematic analysis of the impact of diversification on the performance of private equity funds …. A unique data set allows the exact evaluation of diversification across the dimensions financing stages, industries, and … countries. Very different levels of diversification can be observed across sample funds. While some funds are highly specialized …