The demand for money has been at the centre of monetary econometrics. The demand for money research focuses on the factors determining money-holding behaviour of the private sector of the economy. Knowledge of this reaction pattern is of great importance for assessing the effectiveness of monetary policy or the impact of monetary or other shocks. However, views on this matter differ widely. On the one hand, there is a general approach, focusing on the monetary climate, which regards monetary ease or tightness as the main driving force without specifying the nature of the underlying transmission process. On the other hand, a more specific approach is discernible, which regards all changes in money-holding behaviour, or, in other words the reaUocation within the range of components of wealth, as the most important channel for spending effects.The demand for money is a well-explored field of monetary econometrics. Against that background and in view of the traditionally ample availability of data to examine the various theoretical views empirically, this is not surprising. Moreover, research on the demand for money conducted in the recent past has been an important source of inspiration for innovations in both monetary theory and econometric technique. This has resulted in an abundant flow of interesting empirical research on the demand for money covering many countries and regions. This survey aims at presenting an inventory and assessing these innovative activities from the viewpoint of monetary policy. It focuses on four aspects in particular. The first is the evolution of the theory of the demand for money, of which a brief survey is presented. The second is a summary of empirical studies carried out since 1970. Because virtually all recent surveys of money demand research -see e.g. , Goldfield and Sichel (1990) or Boughton (1992) -focus primarily on the US, the present survey, following Fase and Kun6 (1974, p. 344-345;1975) for the 1960s and before, broadens the perspective by including the G7 and EC countries in particular. The third aspect concerns the most important theoretical and methodological lessons to be