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Table 3 Common support condition for the estimation of treatment effects a

From: Short-term training programs for immigrants in the German welfare system: do effects differ from natives and why?

  Aptitude tests Job search training Skill provision Comb. training programs
 Quarter 1
Natives 507/507 303/303 288/288 410/410
Immigrants 448/448 270/270 244/245 360/360
 Quarter 2
Natives 260/260 116/116 160/160 180/180
Immigrants 213/213 110/110 146/146 157/157
 Quarter 3
Natives 138/140 48/48 94/94 90/90
Immigrants 143/143 - 82/82 96/96
 Quarter 4
Natives 91/92 - 69/69 63/63
Immigrants 98/98 - 67/67 -
  1. aRemarks: Displayed is the fraction of treated individuals satisfying the common support condition on all treated individuals in the respective sample. On support are those individuals, whose propensity score is not smaller than the smallest and not larger than the largest propensity score in the respective group of non-treated individuals. Treated observations, who are off support, are not used in the matching analysis to estimate treatment effects.