In an economy which produces two goods X and Y, using two inputs L and K, efficient input use occurs when:

A) MRTS_LK^X = MRS_LK^Y.
B) MRT_XY = MRS_XY.
C) MRS_X/P_X = MRS_Y/P_Y.
D) MRTS_LK^X = MRTS_LK^Y.

A conditional sales contract is a type of contract that occurs when the purchased goods are in some kind of storage under the control of a third party,such as a warehouseman.

Recruitment is the process of finding and attracting capable individuals to apply for employment.

An increase in the unemployment rate would affect tax receipts and government expenditures by

A) reducing tax receipts and expenditures.
B) increasing tax receipts and expenditures.
C) reducing tax receipts and raising expenditures.
D) raising tax receipts and reducing expenditures.
E) reducing tax receipts and leaving expenditures unchanged.

An individual firm's demand curve in a perfectly competitive market is

A) downward sloping.
B) upward sloping.
C) perfectly elastic.
D) perfectly inelastic.