During the antebellum period, the South exported more to England than it imported. This Southern trade surplus with England benefited whom?

If Jack is a utility maximizer, shouldn't a fall in the price of popcorn cause an increase in his marginal utility of popcorn?

What will be an ideal response?

If demand is unit elastic, then a 10 percent increase in the price will lead to a 10 percent increase in quantity demanded

a. True b. False Indicate whether the statement is true or false