Answer:
Special-interest effect: An outcome of a political process, where a small number of individuals have large gains from the government program at the cost of many individuals who suffer a small loss.
Collective action problem: A problem generate when people would be better-off by cooperation but, could not gain due to interest conflicts.
Subsidy per person:
Subsidy per person can be calculated by using the following formula.
Subsidy per person = Total subsidy amount / Total number of people
Substitute the respective values in the above formula to calculate the subsidy per person as follows:
Subsidy per person = 3,000,000,000 / 300,000,000
Subsidy per person = 10
Hence, the subsidy per person is $10