Monetary policies are largely determined by which of the following groups?

A free rider problem occurs when:

a. everyone fails to work towards a common goal because they all want someone else to do the work b. the market provides a good by making it free of charge c. a faction tries to capture control of government d. the government provides a public good

A sequence of conditions in an interaction design might be A-B-A-B-BC-B-BC. This design

a. follows the important rule of changing only one variable at a time in single-case experiments. b. allows for determining if C has an effect. c. allows for determining an interaction effect for B and C, even if B is maximally effective alone. d. allows for determining if there are interactions for A and B as well as B and C.