The is the act of limiting the amount of certain goods that civilians can buy

Rationing is is the act of Limiting the amount of certain goods that civilians can buy. Rationing became common during the Second World War. Ration stamps were often used. These were redeemable stamps or coupons, and every family was issued a set number of each kind of stamp based on the size of the family, ages of children and income.

answer; encouraging the development of innovations by firms attempting to break a monopoly; (creative destruction)