The aim of this article is to discuss some theoretical backgrounds concerning children's development and socialization, particularly centered on economic socialization; this paper also describes how an international comparative research project reached maturity. The joint object is to investigate, through cross-cultural comparisons, a general picture of children's economic socialization throughout the world. Common points and differences according to specific social, economical and political situations in the countries are brought to the fore by an international comparative research project. A common method based on interviews centered on economic understanding, economic reasoning and economic attitudes was applied in 15 different countries. © 1990.