{"kind":"assistant","text":"Example 15.4, Table 15.1, IV column: log wage on education instrumented by college proximity, with experience, its square, race, SMSA, South, SMSA in 1966 and the 1966 region dummies (classical errors with the degrees-of-freedom adjustment, as the example states).","tool_calls":[{"args":{"dataset":"card","endog":["educ"],"exog":["exper","expersq","black","smsa","south","smsa66","reg662","reg663","reg664","reg665","reg666","reg667","reg668","reg669"],"instruments":["nearc4"],"se":"classical","y":"lwage"},"id":"script_1","name":"infer__iv_2sls"}]}