In times of increasing significance for national policies which support international economic cooperation, a special role is played by state trade support institutions (TSIs). This paper investigates whether such TSIs can be said to operate effectively, through an analysis of one essential element of the support provided to domestic entrepreneurs, namely export recommendations. The recommendations provided by Polish TSIs in respect of Turkey is employed as a case study. The theory of comparative advantage along with a neo-institutional perspective provide the conceptual framing for this analysis, in conjunction with both desk research, document analysis, and selected economic indices. Factors such as trade potential, comparative advantages, and the competitiveness of selected product groups exported by Polish firms to Turkey were also taken into account. The findings largely indicate that TSI export recommendations are adequate, and the majority of the recommended industries demonstrated considerable sales opportunities. Nevertheless, some discrepancies were also noted, which should be an issue for further investigation by both researchers and TSI analysts. Furthermore, the case study in this paper demonstrates that the choices within economic promotion policy – despite its partition between variously-oriented TSIs - were made on the basis of economic rationality.