The document discusses the Gurley-Shaw thesis on non-bank financial intermediaries and monetary policy. Some key points:
- Gurley and Shaw proposed a liquidity definition of money that includes currency, demand deposits, and close substitutes, with weights based on substitutability.
- They argued that growth of non-bank financial intermediaries in the post-WWII period weakened central banks' ability to control money supply and economic activity.
- For monetary policy to be effective, non-bank intermediaries must be regulated similarly to commercial banks, as their credit creation impacts money supply.