Simon's (1955) famous paper was one of the first to cast doubt on the validity of rational choice theory; it has been … supplemented by many more papers in the last three and a half decades. Nevertheless, rational choice theory plays a crucial role in … classical and neoclassical economic theory, which presumes a completely rational agent. The central points characterizing such …

, authoritative statements of fact, output and outcome are taken up in turn. Definitions rely on mathematical set theory, and on basic …