This paper evaluates the performance of a monetary aggregate that is constructed from principles of economic and index number theory. Results from tests for weak separability indicate that wholesale deposits should not be aggregated with other U.K. financial assets; they currently are included, however, in broad monetary aggregates published by the Bank of England. Financial asset groupings passing the weak separability tests then were aggregated using both simple-sum and Divisia weights. In each case, the Divisia aggregates were more closely related to the growth of nominal GDP and had stable demand for money functions. Copyright 1991 by MIT Press. (This abstract was borrowed from another version of this item.)

Studies have focused heavily on money in the transmission mechanism of monetary policy. In this article we explore the empirical importance of credit. The paper provides a framework in which to analyse the balance sheets of, and financial flows between, different sectors of the UK economy, and an econometric model of the interactions between non-financial firms, households and credit offered by banks and non-bank financial intermediaries. The paper also provides a dynamic structural model of bank and building society credit, money and decisions to consume and invest and then adds credit from non-bank financial intermediaries. Our bottom line is that credit is an important part of the transmission process of UK monetary policy.