I get a kick out of someone with great authority (especially central bankers these days, given their quickly fading super powers) speaking confidently about the root causes of some problem as if you’re an uninformed ignoramus (i.e., not an economist) if you don’t see what is so obvious to them and people like them. Such is the case with ECB chief Mario Draghi’s explanation to the Germans about why interest rates are freakishly low.
They (low interest rates) are the symptom of an underlying problem, which is insufficient investment demand across the world to absorb all the savings available in the economy. And so the right way to address the challenges raised by low rates is not to try and suppress the symptoms, but to address the underlying cause.
It’s the ‘ol “lack of aggregate demand” root cause canard (i.e., as opposed to the more sensible reckless, multi-decade expansion of credit and debt that artificially raised aggregate demand) that future historians will someday have fun with, that is, after the current set of top economists and central bankers are completely discredited.