Roads, telephone lines, power facilities, and schools are examples of a nation's

Along the long-run Phillips curve, the value of _____ remains constant

a. unemployment b. inflation c. the interest rate d. investment

Consider two straight-line PPFs. They have the same vertical intercept, but curve I is flatter than curve II. The opportunity cost of producing the good on the horizontal axis

A) is greater along curve I. B) is greater along curve II. C) is the same along both curves. D) cannot be compared for the two curves without more information.