A market demand curve is found by adding the individual prices for each quantity demanded

In the figure above, ceteris paribus, an increase in x is associated with

A) an increase in y. B) a decrease in y. C) an increase in z. D) a random change in z. E) no change in either y or z.

In the above figure, which of the following is TRUE regarding the movements from point A to B and from point C to D?

I) The movement from point A to B shows that the economy has chosen to produce 100 more jets. II) The movement from point C to D shows that the economy has chosen to produce 100 more jets. III) The movement from point A to B and from point C to D have the same opportunity cost. A) I and II B) I and III C) II and III D) I, II and III