For W to Be an Effective Control Variable in IV

question 28

Multiple Choice

For W to be an effective control variable in IV estimation, the following condition must hold

• A)E(u_i)= 0
• B)E(u_i|Z_i,W_i)= E(u_i|W_i)
• C)E(u_iu_j)≠ 0
• D)there must be an intercept in the regression

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Definitions:

Autopsy

A thorough examination of a body after death to determine the cause and manner of death and to evaluate any disease or injury that may be present.

Cause of Death

The specific reason or event leading directly to the death of an individual, often determined through medical examination or legal investigation.

Cryonics

The low-temperature freezing (usually at −196°C) of a human corpse or severed head, with the speculative hope that resurrection may be possible in the future.

Cremation

The process of burning the dead body to ashes as part of funeral rites.