Pereira, S.C.

group worker employment difference change effect number age groups impact control control group treatment teenager adult control groups result 18-19 portugal increase interval treatment group mw change table variation period study sample 20-25 30-35 coefficient level exitor employment effects entrant experiment employment impact value employment effect analysis percent panel distribution wage change substitution wage distributions substitution effect variable labour market growth observation regression review evidence employment changes 7 region dummies trend 19 industry dummies policy age group 19 year representative wage distribution shock 19 years dummy place spillover exogenou region elasticity youth employment time t =0 exogenous shock y ijt i representative sample reduction estimate research evolution