Introduction. The entrepreneur is a key character of the economy with a competitive market that translates into business ideas by taking advantage of opportunities offered by the market.
Aim of the study. The paper sets out representative approaches in relation to the entrepreneur, developed over time by reputed economics and management specialists. The best known and quoted classifications of entrepreneurs set out in the specialized literature, namely the one elaborated by the American Professor John B. Miner and the STRATOS typology, are presented and analyzed in a comparative vision. The strengths and vulnerabilities of each type of entrepreneur in the two types presented are systematically emphasized. Also, the main variables defining entrepreneurial spirit and the most important forces that determine it are highlighted and explained in the paper.
Keywords: entrepreneur, business idea, business opportunity, entrepreneurial spirit.
JEL Classification: L26, M10, M21, O10.