and of the concept that creativity ca Publications and articles n be learned or enhanced (Timmons & Spinelli, 2008). The three types of opportunities identification to the field of entrepreneurship as established by Sarasvathy, Dew, Velamuri, and Venkataraman (2003) are recognized, discovered and created. There are various motives to start a new venture. According to Amit, McCrimmon, Zietsma and Oesch (2001), money is important but not necessarily most important. They argue that some of the key non-monetary motives for starting up a business i Publications and articles nclude the wish to be independent and the combination of work and household responsibilities. These start-up motives may have important consequences for the degree of (over)optimism that characterizes (promising) entrepreneurs. For example, if an entrepreneur is mainly driven by wealth creation, it may be expected that (s)he is more likely to be disappointed if the turnover in the first year is relatively low. If the entrepreneur is driven by the wish to be independent, (s)he may be unpleasantly surprised by the strong reliance upon a limited num Publications and articles ber of clients or the bank. If the primary start-up motive is exploiting a perceived opportunity, the entrepreneur may be faced with other people who came up with the same idea or possibly an overestimated market demand for the (new) product. Gilad and Levine (1986), agreed in their analysis on intrinsic and extrinsic that there are discrimination between start-up motives. Intrinsic motives include the desire for independence and combining work with care for family members. Entrepreneurs who are driven by such motives will probably be less inclined to set unrealistically high pecuniary goals. Extrinsic motives include two Publications and articles  categories: pull and push factors. An opportunity of perceived profit is an important pull factor of entrepreneurship, while (the threat of) unemployment is a well-known push factor. Regarding the exploitation of opportunities, Hayward, Shepherd and Griffin(2006) argue that overoptimistic founders will commit too many resources to the opportunities that are the bases of their ventures. If entrepreneurs are ‘blinded’ by their own ideas and fail to adequately assess the competition and the (potential) problems to transform the opportunity into a profitable venture, over optimism is around the corner. The creation of a new organization, however, is contingent upon the belief that self-employment promises more expected utility than either employment within an existing organization or unemployment (Douglas & Shepherd, 2000; Van Praag>