Agnes Szabo-Morvai evaluated the effects of hiring tax credit program on the employment probability of mothers with kindergarten-motherage child. The cumulative effect of subsidies cannot be detected due to the low rate of demand and the small amount in the subsidy. In certain subgroups the effect is positive: the employment probability of mothers with two or more children and with secondary education has increased due to the subsidy.

Szabo-Morvai, Agnes: Evaluating The Effect Of START Plusz Hiring Tax Credit Program On The Employment Probability Of Mothers With Kindergarten-Age Child, 2014.