Table A2

Balancing Test for the Distribution of the Variables between Matched PDR (X1) and Non-PDR (X0) Groups for Observations after 1978: Covariates That Are Not Balanced

Epan Kernel Matching, Bandwidth = 0.02Uniform Kernel Matching, Bandwidth = 0.02
Full sampleCommon supportFull sampleCommon support
Matching over Full Sample
t-Testaphighsch (0.71:0.72)phighsch (0.71:0.72)numf (782:652)
numf (782:655)
tdummy7 (0.07:0.17)tdummy7 (0.07:0.17)tdummy7 (0.07:0.17)tdummy7 (0.07:0.16)
tdummy10 (0.47:0.3)tdummy10 (0.47:0.3)tdummy10 (0.47:0.31)tdummy10 (0.47:0.31)
Regression testphoffwphoffwphoffw
phighschphighschphighschphighsch
tdummy7tdummy7
tdummy10tdummy10tdummy10tdummy10
Matching within Time Period
t-Testanumf (778:584)numf (778:590)
met (0.32:0.21)
Regression testnumfnumf
metmet
  • Note: We present the covariates for which we could reject the H0: no difference in the mean at the 95% confidence level. tdummy1 to tdummy10 indicate 1949–1954, 1955–1959, 1960–1964, 1965–1969, 1970–1974, 1975–1978, 1979–1982, 1983–1987, 1988–1992, 1993–1997, respectively.

  • a The means for the PDR counties and non-PDR counties are in parentheses.