First, I think the science of monetary economics has clearly gotten better. – Martin Feldstein
A rise in the level of saving can reduce aggregate activity temporarily but only a sustained high level of saving makes it possible to have the sustained high level of business investment that contributes to the long-run growth of output. – Martin Feldstein
And finally, no matter how good the science gets, there are problems that inevitably depend on judgement, on art, on a feel for financial markets. – Martin Feldstein
Increased government spending can provide a temporary stimulus to demand and output but in the longer run higher levels of government spending crowd out private investment or require higher taxes that weaken growth by reducing incentives to save, invest, innovate, and work. – Martin Feldstein