Traditional finance is built on the rationality paradigm. This chapter discusses simple models from an alternative approach in which financial markets are viewed as complex evolutionary systems. Agents are boundedly rational and base their investment decisions upon market forecasting heuristics....

Recent evidence suggests that younger people update beliefs more in response to aggregate shocks than older people. We embed this generational learning bias in an equilibrium model where agents have recursive preferences and are uncertain about exogenous aggregate dynamics. The departure from...