The portion of the money supply controlled by a central bank is

Use the law of diminishing marginal utility to explain why a pizza parlor might price pizzas in the following way: "Buy one pizza for $12, get the second pizza for $6." Why not simply charge $9 per pizza instead?

When you see someone trying to "multi-task" despite mounting evidence that multi-tasking is actually inefficient, this illustrates the:

A. Confirmation bias B. Framing effect C. Hindsight bias D. Availability heuristic