When a person engages in a "game," that person may reason and behave in a manner that is inconsistent with non-game-situation moral reasoning. In this study we measured moral reasoning with the Defining Issues Test (DIT). We then engaged the students in a competitive game and collected accounts of their "reasoning" by having them explain their decisions with a forced choice inventory. The results indicate that there were significant inconsistencies in moral reasoning between non-game and game situations. The implications of (...) this for business ethics are discussed. (shrink)