A surprisingly neglected facet of sector evolution is the evolutionary analysis of firms', and thus a sector's, scope …. Defining a sector as a group of firms that can change their scope over time, we study the transformation of U.S. banking firms …. We undertake a sectoral, population-wide study of business-scope transformation, with particular focus on which segments …

A surprisingly neglected facet of sector evolution is the evolutionary analysis of firms', and thus a sector's, scope …. Defining a sector as a group of firms that can change their scope over time, we study the transformation of U.S. banking firms …. We undertake a sectoral, population-wide study of business-scope transformation, with particular focus on which segments …

diversification is not an easy task as it is impacted by a huge number of different factors: the way systematic risk is measured, the … of the asset features, the model adopted to measure diversification (i.e., equally weighted versus optimal allocation … of stocks required for a well-diversified portfolio for individual investors, and (5) machine learning methods could …

. In the longer run, however, a trade-off between diversification and climate action emerges. We derive the optimal carbon … price, the equilibrium risk-free rate, and risk premia. Climate disasters, which are more likely to occur sooner as … temperature rises, significantly increase risk premia. …

excessive financial risk. Recent theory concludes that 10-15% of a worker's wealth portfolio can be prudently invested in … financial risk. We also find that families with employer stock are found to express more tolerance of financial risk, have … higher self-rated knowledge of personal finances, and are more likely to understand the value of diversification. While …