The Single Market, the main factor shaping the concepts and practice of the current stage of European integration, introduces an equal playing field for all actors (including, primarily, competition rules) while the free movement of goods, the first of the four main freedoms inherent in the market, implies that trade within the EU knows no borders (no border control, no customs duties, only an external customs tariff).
This means that Polish companies need to:
This will require many businesses to pay significant costs of harmonization with EU regulations, affecting their financial standing. On the other hand, freedom of business on the Single European Market will give well-managed modern companies new opportunities of expansion in the territory of 25 member states.