In setting up his administration, President Andrew Jackson established a __________, in which he only appointed employees who pledged loyalty to him

Which of the following officials presides over the county commissioners court?

a. County judge b. County clerk c. County attorney d. County tax assessor-collector e. Sheriff

The gravity model of trade implies that:

a. Trade between any pair of countries is positively correlated with the distance between them. b. Countries trade more with their neighbors than with more distant countries. c. Trade is inhibited by government intervention. d. Large countries are more self-sufficient.