Suppose inter-city bus travel is a substitute for transportation ...

[torybrooks]

Suppose inter-city bus travel is a substitute for transportation by train. Which of the following could then be TRUE?
 
  A) The cross elasticity between bus and train travel could equal 0.65.
  B) The cross elasticity between bus and train travel could equal 1.0.
  C) The cross elasticity between bus and train travel could equal 1.25.
  D) All of the above could be true.

Question 2

When Frankie spends all his money in such a way that the marginal utility per dollar is the same for all final purchases of products he consumes, Frankie has maximized
 
  A) his marginal utility.
  B) his total utility.
  C) the number of products he consumes.
  D) his total expenditure on all products.

[AngeliqueG]

Answer to Question 1

D

Answer to Question 2

B