The Surprising Qualities Women Want in a Hero

From classic Harlequin novels to 50 Shades of Grey, the hot, inscrutable billionaire hero has been dominating bestseller lists, e-readers, bookshelves, and delighting readers and heroines. Are these books just another example of the Cinderella fantasy — rich man rescues poor girl — being alive and well in spite of, say, feminism? Or are there other qualities about these wealthy heroes that make them so damn appealing?