Economic analysis has approached the problem of the neutrality of money through methods of supply-demand equilibrium in which changes in aggregate demand due to monetary or fiscal policy are equivalent to changes in the denomination of the monetary standard. We re-examine this question using...

Lucas (1972) is the pathbreaking analysis of the neutrality and temporary non-neutrality of money. But our central banks set interest rate targets, and do not even pretend to control money supplies. How is inflation determined under an interest rate target? We finally have a complete theory of...

Firms’ market power, measured by markups, has risen substantially and unequally across sectors. To evaluate the implications of these trends for monetary non-neutrality, we develop a quantitative menu cost model that covers multiple sectors with heterogeneous degrees of market competition. Two...