1. Monopolistic Competition
   1. Properties
      1. Physical
         1. Large Number of
            1. Buyers
            2. Sellers
         2. Heterogeneous Product
         3. Easy Entry & Exit
      2. Economic
         1. Buyers and Sellers
            1. Buyers
            2. Price takers
            3. Sellers
            4. Price Setters
         2. Demand Curve
            1. Slopping Downward
         3. No Strategic Interaction between sellers
         4. Economic Profit
            1. Zero
   2. Short Run vs Long Run
      1. Short Run
         1. Graph
            1. Topic
         2. MC = MR
            1. Looses when
            2. ATC > D
            3. Gains When
            4. ATC < D
      2. Long Run
         1. Graph
            1. Topic