Answer: Rarely if ever
Explanation:
In an economy resources are limited while human wants are unlimited. So resources must be used in a way that maximum consumer wants can be met efficiently. In an economy when resources are allocated efficiently it is rarely possible to make some else better off without making someone else worse off. That is it is rarely possible to increase performance of some without sacrificing on some other dimension.
Answer:
At least $2,500. If the family's income was $0, then the government will transfer $2,500 to them.
Explanation:
A negative income tax refers to a welfare system where individuals earning below a certain amount, instead of being taxed, receive money transfers from the government.