Referring to Table 4.1, Box A should be filled with 

Andrea Schwatz has argued that the Great Depression was caused by

a. the fall in the stock of money. b. the fall in consumer durable spending. c. the fall in investment spending. d. the increase in nominal wages.

Suppose you read in the Wall Street Journal that actual investment in Mexico in 2003 was precisely the intended investment Mexican businesses had hoped to make. You would conclude that in 2003, the level of inventories in Mexico

a. had not changed but national income fell b. had not changed and national income was at its equilibrium level c. increased and national income fell d. increased along with national income e. was zero