This paper shows that the reform on the structures of the Polish economy has had an impressively fast effect on the numbers of different products this country exports to Western countries. The time path may well be described by a logistic curve. The change in the exports of this country may therefore be characterised by a widening, instead of a deepening in specialisation. The paper introduces a new empirical methodology to evaluate the dynamic changes in export activities of a country. The result of this new methodology is that quality competition is becoming increasingly important for Poland over time.