This paper outlines the basic concepts of adaptation, learning, and evolution and their relationship to equilibrium and disequilibrium in economic processes. Work using these concepts in the behavioral tradition of Cyert, March and Simon is summarized. A more detailed description of economic...

Existence theory in economics is usually in real domains such as the findings of chaotic trajectories in models of economic growth, tatonnement, or overlapping generations models. Computational examples, however, sometimes converge rapidly to cyclic orbits when in theory they should be...

Variations of Richard Goodwin's graphical model for explaining the rudiments of Keynes's real/monetary cycle theory are presented that can also be explicated graphically, but which possess more plausible dynamic properties, namely, the generic possibility of irregular, asymmetric fluctuations