Which of these is a decision that must be made in any economic system?

a. what goods and services to produce

b. what type of trade regulations to enact

c. what level of interest rates to establish

d. what prices to charge for goods and services

Which of the following policies is an example of a command-and-control policy? a. subsidies to education b. maximum levels of pollution that factories may emit c. tradable pollution permits d. none of the above is an example of a command-and-control policy.