If the cross elasticity of demand between coffee and tea is positive, an increase in the price of tea will shift the demand curve for

Columbia produces coffee with less labor and land than any other country; it therefore necessarily has a. an absolute advantage in coffee production

b. a comparative advantage in coffee production. c. both a comparative and absolute advantage in coffee production. d. an absolute advantage and comparative disadvantage in coffee production.

Total profit can be calculated by

a. subtracting total variable cost from total revenue b. subtracting total revenue from total costs c. subtracting total costs from total revenue d. finding the product of the difference between average profit and average total cost and the quantity produced e. quantity produced times the difference between marginal cost and average total cost