Economist Quotes and aphorisms about invest Dambisa Moyo Robert J. Shiller Nouriel Roubini ,, I believe investors should invest for the long run, so I don't buy and sell. I usually maintain the... Evan Davis James Heckman Jose Angel Gurria Merton Miller Myron Scholes ,, Keynesian modelling relies on marginal propensity to consume and marginal propensity to invest. The... Peter Blair Henry Harry Markowitz ,, If the investor doesn't have enough time and skill to investigate individual stocks or enough money...