Explicit Costs
Must be paid, like raw materials or wages
Implicit Costs
Opportunity costs, the next best alternative for resources.
Rational Resource Allocation
Entrepreneurs reallocate when greater profits are available elsewhere
Profit Formula
Profit = TR-TC
Normal Profit Definition and Formula
Breaking Even
TR = TC
Supernormal Profit Formula
TR > TC
Losses
TR < TC
Short Run Shutdown Point
If selling price (AR) falls to AVC it should Shut Down
Long Run Shutdown Point
If AR is equal or lower than AC it should shut down