In the figure above, international trade ________ producer surplus in the United States by ________

The Lorenz curve shows what portion of total money income is accounted for by

A) different proportions of a country's households. B) only the wealthiest citizens. C) only poor people. D) taxpaying citizens only.

When constructing an economic model, economists

a. rely mostly on their own value judgments and ignore the far more complex world of facts b. always try to duplicate reality by including all available information c. use assumptions that are true for the individual but never true for the whole economy d. must rely on simplifying assumptions that abstract from the complexity of the real world e. are primarily concerned with making realistic assumptions