21.	A prisoners dilemma problem can be solved by _____.
	a. the parties are kept from communicating with each other.
	b. a third party enforced their cooperation
	c. the parties were not guilty of the crime
	d. giving the parties sufficient time to arrive at the social beneficial decision

22.	A pure private good is _____ and _____.
	a. nonexcludable; private in consumption
	b. excludable; private in consumption
	c. excludable; collective in consumption
	d. nonexcludable; collective in consumption
23.	A pure public good is _____ and _____.
	a. nonexcludable; private in consumption
	b. excludable; private in consumption
	c. excludable; collective in consumption
	d. nonexcludable; collective in consumption

24.	Which of the following is not an impure public good?
	a. A fairly congested interstate highway.
	b. A crowded swimming pool.
	c. A movie theatre nearing capacity.
	d. A highly demanded piece of computer software.
25.	Which of the following is not an institution used by government to secure rights?
	a. The police.
	b. The military.
	c. The courts.
	d. The copyright office.
26.	The government protects rights in a market economy by providing _____.
	a. production
	b. allocation
	c. registration
	d. courts
27.	The optimal level of rights protection is _____.
	a. zero
	b. the marginal cost of additional protection equals the market price of the good
	c. the marginal cost of additional protection equals the marginal benefit of the good
	d. absolute
28.	Insufficient _____ can make regulation counterproductive.
	a. information
	b. funding
	c. monitoring
	d. time