school93_98 A dataset with 10668 observations on 18 variables: distid: schid: lunch: percent eligible for free lunch enrol: number of students exppp: exp per pupil math4: year: 1993 = school year 1992-1993 y93: y94: y95: y96: y97: y98: rexpp: (exppp/cpi)1.605: 1997 $ found: lenrol: log(enrol) lrexpp: log(rexpp) lavgrexpp: log((rexpp + L.rexpp)/2) from L.E. Papke (2005), “The Effects of Spending on Test Pass Rates: Evidence from Michigan,” Journal of Public Economics 89, 821-839.