In a VECM, A $Y _ { t } - \theta X _ { t }$

question 18

Short Answer

In a VECM, a. past values of $Y _ { t } - \theta X _ { t }$ help to predict future values of $\Delta Y _ { t }$ and/or $\Delta X _ { t }$ .
b. errors are corrected for serial correlation using the Cochrane-Orcutt method.
c. current values of $Y _ { t } - \theta X _ { t }$ help to predict future values of $\Delta Y _ { t }$ and/or $\Delta X _ { t }$ .
d. VAR techniques, such as information criteria, no longer apply.

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Definitions:

Tariffs

Taxes imposed by a government on imported goods, often to protect domestic industries or to raise revenue.

Domestic Sellers

Domestic sellers refer to businesses or individuals that sell goods or services within their own country.

Domestic Buyers

Individuals or entities within a country that purchase goods or services from sources within the same country.

Tariff

A tax imposed by a government on imports or exports of goods, often used to protect domestic industries or generate revenue.