In addition to an old-age insurance system which redistributes income
from the young to the old, family allowances build a further redistrib
utive system which typically favors younger and burdens older generati
ons. Family allowances have two main tasks: first, child allowances of
fer an incentive for child-bearing which influences fertility in an ec
onomy. Second, subsidies which ease the financial burden of a child's
education guarantee a higher average level of productive skills and th
erefore enhance net domestic product. If individual demand for having
and educating children leads to an impact on the economic system as a
whole, we have external effects. In such a case, corrective taxation (
Pigouvian tax) should be considered.