As a number of other commenters have observed, what data? The only hard data I saw in this article suggests the opposite. As an experienced business person myself I know personally a great many female entrepreneurs, and with those people you are absolutely correct in the degree of drive and spirt of adventure they possess. The idea of sexist barriers didn't occurr to them. People make choices, and however politically incorrect, for whatever reason, men and women...on average...have different personalities. Does this affect the balance of women entrepreneurs? It's something I'd be looking at. But anyway, why is it a matter of societal concern that we don't have enough women entrepreneurs or entrepreneurs of any sort? Women are severely underrepresented in the trades, and I think society - and the houses we live in - would be a whole lot better built were that not the case. Ah....but wait, I forgot, men and women are perfectly equal. Guess we need programs & quotas there too.