Price Discrimination with Private and Imperfect Information
This paper investigates the competitive and welfare effects of information accuracy improvements in markets where firms can price discriminate after observing a private and noisy signal about a consumer's brand preference. I show that firms charge more to customers they believe have a brand preference for them, and that this price has an inverted-U shaped relationship with the signal's accuracy. In contrast, the price charged after a disloyal signal has been observed falls as the signal's accuracy rises. While industry profit and overall welfare fall monotonically as price discrimination is based on increasingly more accurate information, the reverse happens to consumer surplus. The model is also extended to a public information setting. For any level of the signal's accuracy, moving from public to private information boosts industry profit and welfare at the expense of consumer surplus.
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- Qihong Liu & Konstantinos Serfes, 2002.
"Quality of Information and Oligopolistic Price Discrimination,"
0203004, EconWPA, revised 06 Mar 2002.
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