. Basically, a couple economists (Reinhart & Rogoff) had published a big, influential research paper about how countries that have high levels of debt have slower economic growth. This paper was touted by a bunch of libertarians and fiscal conservatives, including Rand Paul, to justify "austerity measures." That is, government spending and social services need to be cut HARD to keep the economy from going under. This has been a major departure from the traditional view of countercyclical spending: that government spending needs to be HIGH during recessions in order to keep the economy from collapsing further.
Now a grad student wanted to double-check the paper and asked for the primary data. The economists happily tossed the excel spreadsheet his way, and he pored through it. He found a major excel spreadsheet error and reported it to his professors. They were flabbergasted. Austerity measures have been a major component of economic policies in many countries where the economy is going to shit, like Greece.
Now people are joking that "an Excel error may have destroyed the economy." Currently more economists are looking into the original paper by Reinhart & Rogoff and are tearing its premises to shreds on multiple levels.
Honestly, here's hoping we go back to more traditional economic approaches that have a history of working.