Contracts that are implied in law:

A) are obligations imposed by law on grounds of justice and equity.
B) may create unjust enrichment.
C) require the assent of the contracting parties.
D) can only be enforced if both parties willingly comply.

Bob and his sister, Claudia, can NOT own property by:

A) a tenancy by the entireties.
B) tenancy in common.
C) joint tenancy.
D) They can own property in any of these ways.

Diminishing returns are a reason that:

A) the marginal cost curve is downward sloping.
B) fixed costs remain constant.
C) the marginal cost curve is upward sloping.
D) the average fixed cost curve is downward sloping.

The dominant school of economic thought from the 1930s into the 1960s was _________.