In the specificfactors model, labor migration from Mexico to the United States will cause _________ in U.S. lowskilled wages and _________ in Mexican low skilled wages.

Explain how the following factors will shift the supply curve for sparkling wine:

a. New irrigation technology improves the average yield of a vineyard. b. Following an increase in the immigration of unskilled labor, the wages of wine-grape pickers fall. c. The government sets a minimum wage for seasonal employment.

In 1820, when the nation began its westward movement in earnest, the median American was

(a) less than 17 years old. (b) about 20 years old. (c) about the same age as the median American today. (d) older than the median American today.