- Monopolies have what kind of demand curve? - -downward sloping
- The derivative of MR in PC is always - -0
- The derivative of MR in monopolies is always - -negative
- OPE of a Giffen Good is - -positive
- More substitutes = - -more elastic
- Fewer substitues = - -more inelastic
- Saddle Point Formula - -(SOCx)(SOCy) - (SOCxy)^2
- Own-Price Elasticity Formula - -% change in Q/% change in P
- Why are all own-price elasticities negative? - -because of the Law of
Demand
- OPE Arc Formula - -- 2 points
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