As a professional in finance,I've had to wrestle with economists. To a large extent, the profession itself is a fake: the ultimate employer is the Sovereign, who will look askance on anybody saying that it either goofed or that he must get smaller.
start with this in your mind 30 years back, fast forward, and you'll see that macroscopic events in the Economy dept. get ignored, simply because they are in opposition to the academic thought.
I can give you an example: it made the papers in Italy that the European powers that be are starting a study of
Abenomics, with a view to applying it here. While as an Italian I can understand the politicians' liking of a mix of runaway deficits, easy money and public investment, this disregards a number of problems:
1.most of the Abenomics tenets are already in place, to no perceived improvement;
2.public spending as a percentage of GDP is way above 50% in most places here, so the actual tax base is shrunk;
3. and last, there's an example that worked that the politicians are emphatically ignoring.
the example is
Canada. it exited the 2008 crisis better than Europe, in part because of his proximity to the USA and the free trade it has with that nation, but also because it embraced a reduction in the public sector, and a control/reduction of tax pressure.
Do you believe in that causality? after 25 years tallking with these shamans who are called economist, my opinion is "insufficient data": economy is a dismal science. BUT, it worked. and Europe is studying a failing policy simply because it is similar to what they want to do.