Refer to Table 2-10. What is Fred's opportunity cost of making a pogo stick?

Using the figure above, suppose with no trade Liz and Joe each produce at point A on their respective PPFs. Then, Joe suggests that they specialize and trade. He would produce only salads and Liz would produce only smoothies

Then, Joe says, he would buy 16 smoothies from Liz at a price of 1.5 salads per smoothie. Liz should A) not accept Joe's offer since she would lose 2 smoothies and 2 salads. B) accept Joe's offer, as she will be as well off as with no trade. C) accept Joe's offer since she will gain 4 smoothies and 4 salads. D) accept Joe's offer since she will gain 4 salads. E) not accept Joe's offer, as the price he offers is too low for her to gain from trade.

The table above gives the values of different expenditures in the United States during 1999. Answer the following questions about the United States

a. What was the value of net exports of goods and services in 1999? b. What was (nominal) GDP equal to in 1999? c. What was the (nominal) value of total production equal to in 1999?