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                                    ADF-test en PP-test




                  stationair                               niet stationair -> I(1)



                                                     Johansen's cointegration test




                                      cointegrated                          non-cointegrated



                                          VECM*                                   Standard
Granger                                                                           Causality test


γ0i's jointly sign.   β0 = β1 = 0      β0 of β1 sign.     β0 en β1 sign.


No long run           short run             long run      bidirectional longrun
causality             causality             causality     causality


Standard Granger
Causality test


* Vector error correction model (VECM):

 Yt = α0 + β0*Zt-1 + ∑γ0i* Yt-1 + ∑δ0i* Xt-1 + ε0t

 Xt = α1 + β1*Zt-1 + ∑γ1i* Yt-1 + ∑δ1i* Xt-1 + ε1t




2.3   Stationaire tijdsreeksen

Een tijdreeks is stationair indien het gemiddelde, de variantie en de covariantie van de
tijdreeks niet afhankelijk zijn van het tijdstip van meting. Wiskundig wordt het zo
geformuleerd:


                                                                                                   3

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Methodologie

  • 1. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. ADF-test en PP-test stationair niet stationair -> I(1) Johansen's cointegration test cointegrated non-cointegrated VECM* Standard Granger Causality test γ0i's jointly sign. β0 = β1 = 0 β0 of β1 sign. β0 en β1 sign. No long run short run long run bidirectional longrun causality causality causality causality Standard Granger Causality test * Vector error correction model (VECM): Yt = α0 + β0*Zt-1 + ∑γ0i* Yt-1 + ∑δ0i* Xt-1 + ε0t Xt = α1 + β1*Zt-1 + ∑γ1i* Yt-1 + ∑δ1i* Xt-1 + ε1t 2.3 Stationaire tijdsreeksen Een tijdreeks is stationair indien het gemiddelde, de variantie en de covariantie van de tijdreeks niet afhankelijk zijn van het tijdstip van meting. Wiskundig wordt het zo geformuleerd: 3