Humans have operated two basic kinds of economies over our history. In hunting and gathering economies, humans exploit populations of wild plants and animals. In a simple system of coupled equations representing the human population, the exploited ecosystem, and the innovation of new technology,...

In infant industries, a great share of new market opportunities is depleted by firms that spinoff from incumbents. A model emphasizing the relation between incumbents' evolving corporate cultures and the generation of spinoffs explains this regularity in industry evolution. Organizations reach a...