Monetarists and Keynesians agree that expectations are

Which one of the following statements is true?

a. A static reserve index will indicate a longer resource lifetime than an exponential reserve index b. A reserve base index indicates a longer resource lifetime than a reserve index c. Most non-renewable resource prices have increased over the past 40 years d. Eventually all physical reserves of non-renewable resources will be depleted e. The price path for a non-renewable resource typically looks like an inverted U shape

The ________ problem helps to explain why the private production and sale of information cannot eliminate ________

A) free-rider; adverse selection B) free-rider; moral hazard C) principal-agent; adverse selection D) principal-agent; moral hazard