At a Mathematical Level, If the Two Conditions for Omitted

question 43

Multiple Choice

At a mathematical level, if the two conditions for omitted variable bias are satisfied, then

• A)E(u_i | X_1i, X_2i,..., X_ki)? 0.
• B)there is perfect multicollinearity.
• C)large outliers are likely: X_1i, X_2i,..., X_ki and Y_i and have infinite fourth moments.
• D)(X_1i, X_2i,..., X_ki,Y_i), i = 1,..., n are not i.i.d. draws from their joint distribution.

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