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Econometrics

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Defining a Structural Break

EMETRC-EEEBXX

Which is NOT an example of a situation when you might suspect and test for a structural break in the data?

A

Consumers' airfare costs before and after September 11, 2001.

B

Consumers' demand for turkeys at Thanksgiving relative to all other periods of the year.

C

Voting behavior in northeastern United States versus southern United States.

D

Incidents of polio illnesses before and after the introduction of a polio vaccine.

E

Children's asthma incidences before and after a coal power plant is built.