Herbert Simon disseminated his bounded rationality approach in his vast academic production. The recognition of the complex environment and the cognitive limits led him to study about the use of heuristics in the decision-making. Around this idea, a new path to the study of human decisions has...

Economist Frank H. Knight (1885--1972) is commonly credited with defining the distinction between decisions under ``risk'' (known chance) and decisions under ``uncertainty'' (unmeasurable probability) in his 1921 book Risk, Uncertainty and Profit. A closer reading of Knight (1921) reveals a host...