Research discussed in time magazine indicates that girls are more likely to form close knit friendships with a small number of people, whilst boys have larger collections of looser friendships. This seems to be hard wired into the genetic makeup and correlates nicely with the heavily male dominated area of entrepreneurs, which requires wide ranging connectivity.
This all neatly comes back to social capital theory, of course, where strong or weak bonds exist. After reading all the social capital text, i’m starting to see everything in terms of SC, so to rephrase the first paragraph, girls are better at forming bonding SC whilst boys are better at bridging SC.
All extreme generalisations of course!