The paper explores the economic properties of several measures of EU-w
ide money that include different definitions of cross-border holdings
(CBHs). 'Very broad' aggregates are poorly linked with EU-wide income
and price developments; in contrast, the demand for aggregates which i
s 'focused on the European Union' (which hinge on the inclusion of CBH
s denominated in EU currencies and/or kept within the EU) is shown to
be stable and predictable. Although aggregates extended to include CBH
s do not yet outperform the traditional measure of broad money, they a
re likely to become an increasingly important tool for monetary analys
is at the EU level.