Knowledge workers are becoming more common relative to production workers

The cost to firms of changing prices

A) is called a menu cost. B) is small even when there is rapid inflation. C) does not exist if inflation is perfectly anticipated. D) all of the above

If a country's central bank wants to stimulate spending in the economy, it should:

A) increase the amount of assets banks should keep on reserve at all times. B) decrease taxes. C) lower interest rates. D) increase government spending.