"The most valuable of all capital is that invested in human beings; and of that capital the most precious part is the result of the care and influence of the mother" Alfred Marshall 1890.Despite Marshall's early recognition of the importance of mothering, modern day human capital theory scarcely...

When mentioning the sources of an economy's productivity, economists' list typically includes tangible capital and human capital, at least standard human capital, the kind largely associated with education and training. But economists do not usually mention the more intangible forms of human...