Assigning property rights helps correct the problems associated with common resources:
A. because it allows property owners to exclude users and to manage the resource more efficiently.
B. because it makes the good nonrival in consumption.
C. and therefore allows the market to better assess the marginal social benefits.
D. because it allows the government to determine the amount that would lead to the socially optimal outcome.

Caleb construction (cc) incurs supervisor salaries expense in the construction of homes. if cc manufactures 100 homes in a year, fixed supervisor salaries will be $400,000. with the current construction supervisors, cc's productive capacity is 150 homes in a year. however, if cc is contracts to build more than 150 homes per year, it will need to hire additional supervisors, which are hired as full-time rather than temporary employees. cc's productive capacity would then become 200 homes per year, and salaries expense would increase to $470,000. how would cc’s salaries expense be properly classified? fixed variable mixed stepped curvilinear