摘要:The paper takes one significant element of the agriculture production – use of genetically modified organisms (GMO) – and considers it in relation to the production pattern in Polish farms. It asks if under the ceteris paribus conditions the use of GMO plants in Polish farms will have influence on the cropping structure. To answer this question only a scientific and theoretical assumption has been applied that GMO cultivation is permitted without restrictions in Poland. The approach combines both the very short experience of the new biotech based system of agricultural production and a modeling, which builds up and aggregates the impacts of individual farm responses under assumed situations.