Scandinavian Working Papers in Economics

Working Papers,
Copenhagen Business School, Department of Economics

No 14-2006: Temporal aggregation in first order cointegrated vector autoregressive

Lisbeth Funding la Cour and Anders Milhøj
Additional contact information
Lisbeth Funding la Cour: Department of Economics, Copenhagen Business School, Postal: Department of Economics, Copenhagen Business School, Solbjerg Plads 3 C, 5. sal, DK-2000 Frederiksberg, Denmark
Anders Milhøj: Department of Economics, Copenhagen Business School, Postal: Department of Economics, Copenhagen Business School, Solbjerg Plads 3 C, 5. sal, DK-2000 Frederiksberg, Denmark

Abstract: We study aggregation - or sample frequencies - of time series, e.g. aggregation from weekly to monthly or quarterly time series. Aggregation usually gives shorter time series but spurious phenomena, in e.g. daily observations, can on the other hand be avoided. An important issue is the effect of aggregation on the adjustment coefficient in cointegrated systems. We study only first order vector autoregressive processes for n dimensional time series Xt, and we illustrate the theory by a two dimensional and a four dimensional model for prices of various grades of gasoline.

Keywords: na

JEL-codes: G10

36 pages, January 1, 2006

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