Which type of statement - positive or negative - can be evaluated by analyzing data alone?

Convexity of indifference curves imply that consumers are willing to

A) give up more "y" to get an extra "x" the more "x" they have. B) give up more "y" to get an extra "x" the less "x" they have. C) settle for less of both "x" and "y". D) acquire more "x" only if they do not have to give up any "y".

Consumer sovereignty and "dollar votes" guide the market system in dealing with which fundamental economic question?

A. Which output will be produced? B. How is the output to be produced? C. How can the system accommodate change? D. Who is to receive the output?