An economic system in which prices are determined by unrestricted competition between privately owned businesses is a(n) __________

Presenting, as one's own, the ideas or words of others for academic evaluation without proper acknowledgment is called ______.

A. stealing B. lying C. cheating D. plagiarism

Individual opinions sometimes may be badly informed and unstable, ______.

A. but aggregate public opinion is both stable and coherent B. and aggregate public opinion is uninformed and unstable C. although only informed and stable individual opinions are considered for the purposes of aggregate public opinion D. but when combined into aggregate public opinion, individual opinions are informed-though still unstable