Assume the price of Levi jeans increases. As a result, you decrease the quantity of Levi jeans purchased each month and purchase more Lee jeans. This is an example of the:

Betty and Ann live on a desert island. With a day's labor, Ann can produce 6 fish or 4 coconuts; Betty can produce 3 fish or 1 coconut. Betty's opportunity cost of producing 1 fish is ________, and she should specialize in the production of ________

A) 1/3 coconut per fish; fish B) 2/3 coconut per fish; coconuts C) 1 coconut per fish; fish D) 4 coconuts per fish; fish

A demand curve for a public good is determined by:

A. summing vertically the individual demand curves for the public good. B. summing horizontally the individual demand curves for the public good. C. combining the amounts of the public good that the individual members of society demand at each price. D. multiplying the per-unit cost of the public good by the quantity made available.