We develop a framework for modelling differences in liquidity across assets in order to examine the interactions between asset prices, liquidity premia and aggregate activity. In so doing, we want to find out what role government policy might have through open market operations that change the...

The paper presents a model of a monetary economy where there are differences in liquidity across assets. Money circulates because it is more liquid than other assets, not because it has any special function. There is a spectrum of returns on assets, reflecting their differences in liquidity. The...