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The Order of Integration A ϕ1\phi _ { 1 } In the Quasi Difference

question 13

Short Answer

The order of integration a. can never be zero.
b. is the number of times that the series needs to be differenced for it to be stationary.
c. is the value of ϕ1\phi _ { 1 } in the quasi difference (ΔYtϕ1Yt1)\left( \Delta Y _ { t } - \phi _ { 1 } Y _ { t - 1 } \right) .
d. depends on the number of lags in the VAR specification.


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