​Consider the Following Simple Regression Model Y = β₀

question 6

Multiple Choice

​Consider the following simple regression model y = β₀ + β₁x₁ + u. Suppose Corr(x,u) > 0, Corr(z,x) > 0, and Corr(z,u) < 0. Then, the OLS estimator has a(n) _____.

• A)​downward bias
• B)asymptotic bias
• C)​upward bias
• D)substantial bias