This is the latest in my series of podcasts explaining how economics works in the credit crunch and now virus pandemic era. This week I give my thoughts on Are Non-Depository Financial Institutions (NBFIs) going to be the next derivatives? Over time, how accurate an indicator has broad money, M4, been of inflation/growth in 18 months time? but does a rise in the endogenous money supply cause an increase in the nominal size of the economy (real growth + inflation) or is it as a result of an increase in the nominal size of the economy?