Suppose the IS curve shifts back and forth. With a flat LM curve you get __________ variability in the output and __________ variability in the interest rate than you get with a steep LM curve

In the Heckscher-Ohlin model, what assumption is made about opportunity costs?

What will be an ideal response?

Markets do not ensure that the air we breathe is clean because

a. clean air has no value. b. the government prevents markets from doing so. c. property rights are not well established for clean air. d. clean air is impossible to produce .