Select only the first person for each family (keep if perno == 1), and estimate the following models. Carefully explain the meaning of the estimated coefficient ,b1 , for each model. Model1: Y i=b 0+b 1 Xi +ei Model2: Y i=b 0+b 1 logXi +ei Model3: log Y i=b 0+b 1 Xi +ei Model4: logY i=b 0+b 1 log X i+ ei where Xi = Total household income (rinch_all) Yi = Total childcare spending (careval)

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https://bigblue.depaul.edu/jlee141/econdata/cps_data/cepr_march_2018.dta