In a model where money enters the production function, Wang and Yip (1
992) find money to be superneutral with respect to the economy's long-
run rate of growth. This result is not robust to a generalization of t
he technology of human capital accumulation. If human capital accumula
tion requires the imput of physical capital, then money is not superne
utral with respect to the economy's growth rate. However, for reasonab
le parameterizations of the model, inflation is found to have only sma
ll effects on growth.