Ask Question
2 February, 11:24

Consider a product market with a supply function Qs i = b0 + b1 Pi + u s i, a demand function Qd i = g0 + u d i, and a market equilibrium condition Qs i = Qd i, where u s i and u d i are mutually independent i. i. d. random variables, both with a mean of zero. a. Show that Pi and u s i are correlated. b. Show that the OLS estimator of b1 is inconsistent. c. How would you estimate b0, b1, and g0? Stock, James H ... Introduction to Econometrics (Pearson Series in Economics (Hardcover)) (p. 463). Pearson Education. Kindle Edition.

+2
Answers (1)
  1. 2 February, 14:26
    0
    A. Solving for P yields P = 0011dsiiuuγβββ--+; thus 21 (,) susCov P uσβ-=. Because Cov (P, u) ≠0, the OLS estimator is inconsistent.

    B. We need an instrumental variable, something that is correlated with P but uncorrelated with us. In this case Q can serve as the instrument, because demand is completely inelastic (so that Q is not affected by shifts in supply). γ0can be estimated by OLS (equivalently as the sample mean of Qi
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Consider a product market with a supply function Qs i = b0 + b1 Pi + u s i, a demand function Qd i = g0 + u d i, and a market equilibrium ...” in 📘 Business if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers