The author describes the ties between various groups of entrepreneurship and enterprise's behaviour in the market. He pays a particular attention to internal and external entrepreneurship that affects the sphere of operational management and to the costs related thereto as well as to the competitive position in the market. Wider highlighted are the socioeconomic manifestations and effects of regional entrepreneurship. The author emphasises in his article that regional entrepreneurship plays — besides supporting the economic growth — an important role in formation of regional entrepreneurship's awareness and culture that purposefully uses local information and various streams of entrepreneurial behaviours, including technological entrepreneurship.