Revision as of 16:16, 1 October 2015 edit Yujiao1026 (talk \| contribs) 17 edits →Synthetic Control Method models ← Previous edit		Revision as of 16:17, 1 October 2015 edit undo Yujiao1026 (talk \| contribs) 17 edits →Synthetic Control Method models\Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California's Tobacco Control Program."Journal of the American Statistical Association, 105(490), 493{505. Next edit →
Line 20: <math> \left\\| \mathbf{X_1-X_0W} \right\\|_V = \sqrt{(X_1-X_0W)'V(X_1-X_0W)}</math>, where ''''V'''' is defined as (k×k) symmetric and positive semidefinite matrix. V* is chosen among all positive definite and diagnal matrices such that the mean square prediction error(MSPE) of the outcome variable is minimized over pre-intervention period. ==Reference==

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