The Reduced Form Equation for X

question 16

Multiple Choice

The reduced form equation for X

• A)regresses the endogenous variable X on the smallest possible subset of regressors.
• B)relates the endogenous variable X to all the available exogenous variables, both those included in the regression of interest and the instruments.
• C)uses the predicted values of X from the first stage as a regressor in the original equation.
• D)uses smaller standard errors, such as homoskedasticity-only standard errors, for inference.

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Definitions:

Down Syndrome

An inherited condition in which individuals have abnormalities of the face, eyelids, tongue, and other parts of the body and exhibit physical and intellectual disability; usually results from trisomy of chromosome 21.

Trisomic

A genetic condition characterized by having three copies of a particular chromosome instead of the normal two.

Colchicine

A drug that blocks the division of eukaryotic cells by binding to tubulin subunits, which make up the microtubules, the major component of the mitotic spindle.

Mitotic Metaphase

A stage of mitosis in cell division where chromosomes align in the center of the cell before being separated into each of the two daughter cells.