In the money demand literature the Linear Quadratic Adjustment Cost (L
QAC) model is often considered to explain the observed slow adjustment
in agents' money holdings. In this paper we propose a new method of e
stimating and testing the LQAC model of money demand. In an empirical
application to U.K. money demand, we reject the LQAC model defined fro
m a loss function expressed in terms of real money balances. This is i
n sharp contrast to the results obtained by Cuthbertson and Taylor (19
90) in a previous article in this journal using similar techniques on
an equivalent data set. In order to explain the discrepancies we point
out some pitfalls in the empirical methodology adopted by Cuthbertson
and Taylor. We also consider a specification of the LQAC model in ter
ms of nominal money and, despite statistical rejection, we find that i
f the LQAC model should have any empirical content such a specificatio
n should be preferred to the real money specification. (C) Society for
Policy Modeling, 1997.