The principal differences between economic systems in Russia and Belarus condition price advantages of Belarusian products over those produced in Russia. Belarusian producers operate under government cap on prices paid by them for agricultural inputs and received by them from marketing of their produce on the domestic market. In this situation penetration into the Russian market enables them to get larger profits owing to higher market prices for food in Russia. As a result Russian buyers are actually rendering support to exporters of Belarusian commodities and -- to some extent -- to Belarusian farm producers.