Is Macroeconomics Hard?

Is Macroeconomics Hard?

"Math is hard," said Malibu Barbie, famously--and a ton of criticism came down on her for the implicit message that her auditors should go off and do other, easier, things instead and leave the math to the trained professionals. Is macroeconomics hard in this sense? I confess that I do not think so. I think that macro is pretty easy...[1:]

Let's go back in time almost two centuries, to the days when--first after the end of the Napoleonic Wars and then in 1825-6--the...