what you say about raising rates and cost of capital is true except US has had a decade of cheap credit so for once they whole system (Feds + pollies) are craving for some inflationary pressures in their measurement OR else we get to the Greenspan cheap money that started the ball rolling form the GFC crisis to form. Feds need spare bullets of Rate % to cut just in case the economy falter. You can't cut near Zero IR hence the revolutionary QE/Twist
