Langetermijnkoppeling
Langetermijnkoppeling refers to the phenomenon where two or more economic variables exhibit a stable, long-run relationship, even though they may fluctuate independently in the short term. This concept is primarily studied within the field of econometrics and is closely associated with the idea of cointegration. When variables are cointegrated, it implies that they do not drift arbitrarily far apart from each other. Instead, deviations from their long-run equilibrium are temporary, and a mechanism exists that pulls them back towards their stable relationship.
Identifying a langetermijnkoppeling is important for several reasons. It can help in forecasting, as understanding the
Testing for langetermijnkoppeling typically involves statistical tests such as the Engle-Granger test or the Johansen test.