The article presents the result of research on en effectiveness of discriminant modelson the example of selected Polish joint-stock companies which declared bankruptcy. Asidefrom general results describing an effectiveness of discriminant models on the base ofthe own research of the authors, a comparison of the received findings with otherseconomists’ results of research was made. Moreover, an analysis how the relation of anenterprise with the economic situation impacts on an effectiveness of considered modelsconcerning the forecast of a risk of bankruptcy was carried out.