We present a version of Ball and Mankiw's (1994) menu-cost macroeconomic mo
del modified to allow for long-term growth and some elementary dynamics whi
le preserving its characteristic predictions: that nominal demand shocks ha
ve non-linear and asymmetric output effects in inflationary economies. Test
s using U.K. quarterly private sector data over the period 1955 to 1994 gen
erally support the model's predictions.