Abstract

Extant research on the biology of the entrepreneur has recently increased in study with the prevalence of genetic testing, twin studies, neuro-economics and the popular press books on the finger ratio (2D:4D), a marker of the prenatal influence of testosterone on the brain development (Manning, 2008). Previous studies found the smaller 2D:4D ratio (a more masculine or Casanova-like finger length) is positively associated with dominance, aggressiveness, assertiveness, extroversion competitiveness, risk-taking, and sensation seeking, while negatively associated with neuroticism and inhibitions (Manning, 2008). Our most interesting findings conclude that lower 2D:4D ratios (higher levels of testosterone) is negatively associated with both firm performance and commitment to strategic goals.

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