ECON 710 Final: ECON 710 UW Madison Final Exam 2011a

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31 Jan 2019
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!p (cid:12) + q(cid:0)1 xx e (xiei) i! (cid:0)1 1 n xix0 nxi=1. = (cid:12) + 1 n n n nxi=1 i! (cid:0)1 1 nxi=1 i! (cid:0)1 1 nxi=1 zix0 n n zix0 ziyi! ziei! nxi=1. Thus p (cid:0)! (cid:12) + q(cid:0)1 zx 0 = (cid:12) (cid:14) = plim n!1(cid:16)b(cid:12) (cid:0)e(cid:12)(cid:17) = q(cid:0)1 xx e (xiei) xx e (xiei) (cid:0) (cid:12: equation (3) means that xi is exogenous. Under this assumption, (cid:14) = 0: di erencing the above equations, xix0 n. = (cid:18) (cid:18) 1 npn: since e (xiei) = 0; e (ziei) = 0 and. 1 pn pn xix0 zix0 i=1 xx zi (cid:19) ei! 5. where pn(cid:16)^(cid:12) (cid:0) ~(cid:12)(cid:17) =(cid:18) (cid:18) 1 npn. = q(cid:0)1 xx xx (cid:10)xxq(cid:0)1: under (4), so. 7. where ^qxx : a test for h0 is. 1 npn i=1 ^e2 i ; and ^ei = y (cid:0) x0 i. ^(cid:12): (cid:20) (cid:10)xx (cid:10)xz (cid:10)zx (cid:10)zz (cid:21) = (cid:27)2(cid:20) qxx qxz.

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