A fall in the price of X from $12 to $8 causes an increase in the quantity of Y demanded from 900 to 1,100 units. What is the cross elasticity of demand between X and Y?

Spending money on a new car instead of a used car when you are on a fixed budget is an example of

A) a bad thing to do because you run out of money. B) living on the edge. C) the incursion of an opportunity cost. D) isolating variables.

Which of the following statements is true of colonies set up in North America?

A) Production was based on defined property rights in the colonies in North America. B) The institutions set up in colonies in North America were mostly extractive. C) The institutions in these colonies were similar to other British colonies established in Jamaica and Barbados. D) Most of the people in these colonies were engaged in industrial production.