Made an account to add something to the discussion that hasn't been added. I apologize in advance for formatting because I am typing on my phone. My Economics Professor, I think, summed up Economics well. Economics isn't meant to be a truth or a science. An Economists job is to smooth out the ups and downs of the business cycle and get things moving back towards YFe or basically a healthy economy. It's not meant to make things perfect. All it does is contract the gap when the economy is heating up too quickly and will take too long to correct itself back to YFe or use expansionary policy options if the Economy turns too sluggish for it to be able to correct itself in a timely manner. This of course, is a basic understanding of macroeconomics. But economists aren't trying to be perfect they are just trying to push things back toward the middle one way or another. Their are continuous shocks to the economy and those shocks can be both positive or negative. All you are doing is reacting to those shocks accordingly. That's economics. Not a hard truth or science.