The smaller the percentage of voters required for collective action, the higher the external costs

When economic choice involves an adjustment to an existing situation, marginal analysis

a. has no practical applications or real-world uses b. eliminates incorrect decisions and bad choices c. involves comparing the additional costs and additional benefits of an activity before deciding d. involves examining only the total costs and total benefits of an activity before deciding e. none of the above

Variables A and B are inversely related. If we plot A on the horizontal axis and B on the vertical axis, the line that connects combinations of A and B in a two-variable diagram is

A) parallel to the horizontal axis. B) downward-sloping (left to right). C) parallel to the vertical axis. D) upward-sloping (left to right). E) a or c