The ________ illustrates the relationship between the price level and the quantity of planned aggregate expenditure, holding constant all other factors that affect aggregate expenditure

Classical growth theory states that

A) growth is maximized when everyone is fully employed. B) growth is followed by increases in the population, eventually leaving real GDP per person unchanged. C) growth in real GDP per person is difficult in the beginning but easier in the later stages. D) advances in technology will always insure a permanent increase in real GDP per person.

Over the past several decades there has been rapid growth in international trade. This growth has been due to all but one of the following factors. Which factor has not contributed to the growth of international trade?

A) a change in the tariffs charged on many goods B) favorable changes in government policies C) a reduction in shipping costs D) the spread of reliable communications