The interest rate on U.S. government securities is often called the

Which of the following would cause an increase in human wealth?

A) a permanent increase in salary B) an increase in the value of one's house C) an increase in the value of one's stock portfolio D) all of the above E) none of the above

One way sellers can credibly signal that they have a high-quality product is to:

A. sell very little of their product in order to create scarcity. B. spend a lot of money on advertising. C. simply tell buyers more about their product. D. lower their marginal cost of production.