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Include as exogenous controls years of experience and its square, a race indicator, indicators for living in a standard metropolitan statistical area and in a southern state in 1976, an indicator for living in a metropolitan area in 1966, and the 1966 region-of-residence dummies with the first region omitted. Report the coefficient on years of schooling.","requires":[],"runner":null,"sources":["card_1995.ex15_4_iv.paper","card_1995.ex15_4_iv.software"],"split":"public","suite":"paper_repro","tags":["paper_repro","card_1995","iv"],"target":"agent","tool":null,"truth":"Wooldridge, J. M. (2020). Introductory Econometrics: A Modern Approach, 7th edition. Boston: Cengage. Example 15.4 (Card 1995, 'Using Geographic Variation in College Proximity to Estimate the Return to Schooling', data set CARD). The cell predates this edition: the example's specification and IV estimate replicate Card (1995), so 'published' (the edition read) understates how long the cell has been public. Wooldridge (2020), Example 15.4 'Using College Proximity as an IV for Education', Table 15.1 (dependent variable log(wage)), column IV, row educ (source card_1995.ex15_4_iv.paper); software reference card_1995.ex15_4_iv.software: linearmodels 7.0: the reference specification of card_1995 ex15_4_iv (infer.iv_2sls, figure 'coef.educ') on an independent code path"}