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The treated side is below the cutoff, so the running variable is the declared negation Income_Below and treatment is Income_Below >= 0 (Participation equals that indicator on every row)."}]},"se_policy":{"basis":"Table 20.1 states 'Std.Errors HC3'; infer.rdd offers HC1 or clustered errors only.","convention":"HC3 as printed (the table's 'Std.Errors HC3' row; the book's R code passes vcov = 'robust' to modelsummary); the tool and the reference compute HC1","never_required":false,"stated_in_question":false},"target":"tab20_1_c1","trap_tools":[]},"question":"Manacorda, Miguel and Vigorito (2011), on Uruguay's PANES cash transfers, as replicated in Huntington-Klein's 'The Effect', chapter 20, Table 20.1, column 'Quadratic': households qualified for Uruguay's PANES cash transfers when their income measure fell below the eligibility cutoff, so treatment is on the low-income side of the cutoff ('you need low income to get paid'). Estimate, as a sharp regression discontinuity at the cutoff, the effect of receiving the payments on the household's backing for the government: fit a second-order polynomial in income on each side of the cutoff using every household in the extract (all lie within 0.02 of the cutoff), with no kernel weighting. Report the effect of being on the eligible side of the cutoff, with a positive sign meaning more backing among the eligible households.","requires":[],"runner":null,"sources":["mmv_2011.tab20_1_c1.paper","mmv_2011.tab20_1_c1.software"],"split":"public","suite":"paper_repro","tags":["paper_repro","mmv_2011","rd"],"target":"agent","tool":null,"truth":"Manacorda, M., Miguel, E. and Vigorito, A. (2011). Government Transfers and Political Support. American Economic Journal: Applied Economics 3(3): 1-28 (doi:10.1257/app.3.3.1); the cells are those of its replication in Huntington-Klein, N. (2021), The Effect: An Introduction to Research Design and Causality, chapter 20 (Regression Discontinuity), Table 20.1. Table 20.1 (The Effect of Government Payments on Support, Regression Discontinuity Estimates), column 'Quadratic', row 'Participation' (source mmv_2011.tab20_1_c1.paper); software reference mmv_2011.tab20_1_c1.software: statsmodels 0.15.0: the reference specification of mmv_2011 tab20_1_c1 (infer.rdd, figure 'effect') on an independent code path"}