Monetary Aggregation

This entry on monetary aggregation will appear under that title in The New Palgrave Dictionary of Economics, 2nd edition, edited by Steven Durlauf and Lawrence Blume. The entry provides an up-to-date overview of state-of-the-art research on monetary aggregation and index number theory, from its origins in 1980 to the current time. At the end of this dictionary entry, emphasis is placed on ongoing research on extensions to risk and to multilateral aggregation within multicountry areas, such as the euro area. Research on monetary aggregation theory has been especially successful in solving the 'puzzles' that have appeared in the monetary economics literature over the past 35 years.