What might cause economies of scale?

If the nominal interest rate in an economy is 9% and the expected inflation rate is 6%, then the expected real interest rate in the economy is:

A) 15%. B) 3%. C) 6%. D) 9%.

If capital is specific to manufacturing and land is specific to agriculture, then migration of labor from lowincome to highincome countries will cause:

a. the wage to rise in the highincome country and the wage to fall in the lowincome country. b. the wage to fall in the highincome country and the wage to rise in the lowincome country. c. the wage to rise in both the highincome and low income countries. d. the wage to fall in both the highincome and low income countries.