Question: Consider the linear regression model y + + u, where the regressor x may be correlated with the error term u. A potential instrumental

Consider the linear regression model y + + u, where the regressorx may be correlated with the error term u. A potential instrumental

Consider the linear regression model y + + u, where the regressor x may be correlated with the error term u. A potential instrumental variable for the regressor x is relevant when it has predictive power for C) C) b. x. y after x is controlled for.

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