a. Private pay patients have a price elasticity of demand of -3. What do you charge them? b. The union has negotiated a fee of $50. Is it profitable to treat members of the union? c. What would happen to your profits if you stopped treating members of the union? d. If the union negotiated a fee of $45 instead, what would you charge for private pay patients? e. What does this tell you about cost shifting versus price discrimination?