The sensitivity of money holdings to yield is an important issue for f
inancial sector reform. For low-income developing countries, this sens
itivity has been judged mainly on the basis of demand studies which us
e inflation as the opportunity cost of holding money. But researchers
have generally neglected the fact that, because changes in prices may
appear in dynamic demand for money equations even if the demand for mo
ney is not yield sensitive, it is not normally possible to make valid
inferences about the inflation sensitivity of equilibrium demand for m
oney. The severity of the problem is illustrated by reference to Ghana
and China.