Households and firms in the U.S. economy interact with those in the rest of the world in the ________ market and in the ________ market

The price elasticity of demand for a good is 0.2 . A 10 percent rise in the price will _______ the total revenue from sales of the good

A. decrease B. increase C. decrease the quantity sold with no change in D. not change

Each person goes about her daily business seeking to maximize her own self interests. In doing so, she contributes to the welfare of society at large. This is the idea underlying Adam Smith's "invisible hand."

Indicate whether the statement is true or false