 The ecological rationality school accepts the classical model as a normative standard against which individual behavior should be assessed. It rejects the classical model as descriptive of individual decision procedures. An agent does not solve the optimization problem that the classical and broad RCT models posit. This school recognizes that computation is costly and that often the agent lacks adequate information to complete the calculation. Consequently, individuals deploy heuristic decision procedures that, under these constraints, perform well as measured by the RCT model of rationality. 