The individual behaviour is largely work of making decisions and solving problems. It is work of choosing issues that require attention, setting goals, designing courses of action, and evaluating and choosing among alternative actions. Spending, earning, and investing are actions not “risk-free” from an irrational or unnecessary behaviour. This quali-quantitative research aims to highlight the differences of the «bounded rationality» (Simon, 1982; Gigerenzer e Selten, 2002) between experts (bank operators) and ordinary people (undergraduate students). The results want to show the connection of the economic behaviour between experts and ordinary people, both on a cognitive and an emotive level.