Some Further Thoughts on the Entrepreneurial Personality Angelo S. DeNisi This article seeks to extend the discussion begun by Danny Miller (2015) in his editorial entitled, “A Downside to Entrepreneurial Personality?” Recently, Miller (2015) wrote a paper discussing the dark side of the entrepreneur- ial personality. In it, he correctly noted that many of the personality traits that are often associated with entrepreneurship can, when taken to the extreme, have negative conse- quences. For example, he notes that the positive characteristics of self-efficacy and self- assurance can, in the extreme, become narcissism and hubris. He concludes with a call for future research to focus on “the possible downsides of the entrepreneurial personality, if only to distinguish those entrepreneurs who contribute to our economic and social well- being from those whose contributions are negated by the harm they cause” (p. 5). Of course, we do not know if individuals high on any of these traits will actually cause harm, but, in any case, Miller’s (2015) arguments are quite reasonable. Nonetheless, his paper also raises some additional issues that might also deserve attention and have the potential for taking Miller’s contribution a bit further. Specifically, the present discussion will focus on three issues for further consideration. The first is concerned with Miller’s (2015) analysis of “downsides” of entrepreneurial personality as being Janus-faced, and the general nature of personality. A second issue relates to which personality variables have been studied relative to entrepreneurs, and what others offer some promise. A third and final issue deals with how the broader studies of personality can contribute to the liter- ature on entrepreneurship. Before discussing any of these issues, however, it is worth not- ing that the term “entrepreneurial” is itself somewhat vague because it is used in many contexts other than to refer to someone who starts a new business. Therefore, it is impor- tant to first establish that I am focusing on those individuals who start a business venture in this discussion. Let us begin with the Janus-faced analysis. Miller (2015) suggests that the personality types he discusses (such as optimism and self-efficacy) become problematic when they are taken to extremes, and so these characteristics represent the Janus face of the entrepreneur- ial personality. This is likely to be true but, elsewhere, this type of situation is discussed as an inverted U-shaped relationship that we find with many potential predictors of success or failure. One of the earliest discussions of this is the research that yielded what is known Please send correspondence to: Angelo S. DeNisi, tel.: 504-865-5414; e-mail: adenisi@tulane.edu. September, 2015 997 DOI: 10.1111/etap.12168 1042-2587 V C 2015 Baylor University