Alfred Marshall famously defined economics as the study of man in his ordinary business of life. I guess women did not figure in his world. And the ordinary business of life for him involved only man's grossest instinct: that of self-interest and immediate survival.
Women and men are much more than that. Krishnamurti distinguished between and individual and a human being. An individual is just you, separated from everything around you, from life itself. That is Alfred Marshall's 'man'. A human being, on the other hand, is part of an interrelated web in nature. We are all connected. We are one. Classical economics is so narrow that it can not contain that idea of a human being and instead splits us into men and women and creates a denuded, deluded, and dead individual.