Real interest rates have been persistently below historical norms over the past decade, leading economists and policymakers to view the equilibrium real interest rate as likely to be low for some time. Various definitions and approaches to estimating the equilibrium real interest rate are...

Interest rates may remain low and fall to their effective lower bound (ELB) often. As a result, quantitative easing (QE), in which central banks expand their balance sheet to lower long-term interest rates, may complement policy approaches focused on adjustments in short-term interest rates....