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by guido
Tue Aug 28, 2018 6:36 am
Forum: Econometric Discussions
Topic: ARMA equation
Replies: 1
Views: 947

ARMA equation

I struggle to understand the difference between this two models, when generating an equation in EViews:

gdp gdp(-1) gdp(-2)
gdp ar(1) ar(2)

Are not those the same? Unfortunately EViews returns different values, especially when I add a constant and a trend.

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