Since the fall of the Soviet Union, which of the following countries has not joined NATO?

Threats to internal validity are threats to saying __________

a. the independent variable caused the change in the dependent variable. b. the dependent variable caused the change in the independent variable. c. the results can be generalized to other populations. d. the results are due to chance.

Subsidies come in the form of which of the following?

a. Qualitative regulations b. Grants and loans at below-market interest rates c. Price controls and supports d. Antitrust policies