This essay first reviews what Nelson and Winter were trying to accomplish when they put forward An Evolutionary Theory of Economic Change (Belknap Press, Harvard, 1982). It then does a fast-forward to controversies and contributions in the recent past, and speculates on where the intellectual...

Production theory in the neoclassical tradition is strong on Abstract generality. Its high level of Abstraction tends to impede understanding of technological change, partly because its perspective on production differs so much from those of engineers, managers and technologists. A more grounded...

The paper analyses the properties and outcomes of competitive dynamics in industries characterized by heterogeneous firms and continuing stochastic entry. A formal analytical apparatus is developed, able to derive some generic properties of the underlying competition process combining persistent...