Suppose an economy is modeled with a production possibilities frontier or curve (ppf) for butter (vertical axis) vs. Guns (horizontal axis). Which of the following is most likely to shift the curve upward and outward, away from the origin?.

When your working with the passage-based reading questions on the psat do all of the following except. a)make sure you read each question throughly. b) try to answer each question before you look at the answers. c) plan to spend most of your time reading the passage. d) make sure your answer choice is the most correct number me