Even to this day, there are economists who don't understand money or don't think that money is an important aspect of the economy. They see the world as still operating essentially under a barter system, with money only there as a means of lubricating transactions. But this is precisely the opposite way you should be looking at things, according to this week's guest. Perry Mehrling is a Professor of International Political Economy at the Pardee School of Global Studies, Boston University, and he's known for advocating what he calls "The Money View." In his framework, money is front and center (not something to be abstracted away). In our discussion, he explains how this view helps explain the financial crisis, the repo blowup, and the weaknesses of post-crisis regulations.