One of us is writing a book on The Great Demographic Reversal (Palgrave Macmillan, London, 2020), forthcoming soon, to argue that this will happen. But if not, how can we square the inconsistent objectives of maintaining interest rates low enough to maintain macroeconomic equilibrium without at the same time encouraging debt accumulation, fragile financial markets and an inefficient allocation of resources? This is a question we need a good answer to. Charles Goodhart, Tatjana Schulze, Dimitri Tsomocos VOXeu 4 August 2020 Goodhart's law - Wikipedia