HKUEMS :: Event Details

Seminar on IIM by Professor Jeff Hong (January 24, Wednesday)
posted by School of Business for HKU and Public
Event Type: Public Lecture/Forum/Seminar/Workshop/Conference/Symposium
Event Nature: Business & Economics

Event Details

Dynamic Pricing with Demand Learning: The Effect of Varying Cost

Professor Jeff Hong
Chair Professor of Management Sciences
College of Business
City University of Hong Kong

We study a dynamic pricing problem where the observed cost at each selling period varies from period to period while the demand function is unknown and independent of the observed cost. The decision maker needs to select a price from a menu of K prices in each period to maximize the expected cumulative profit. Motivated by the classical upper confidence bound (UCB) policy for multi-armed bandit problem, we propose a UCB-like policy to select the price. When the cost varies continuously, we show that the expected cumulative regret grows in the order of (logT)², where T is the number of selling periods. When the cost takes discrete values in a finite set and all prices are optimal for some costs, we show that the expected cumulative regret is upper bounded by a constant for any T. For the case with continuous cost, we also develop a forced sampling (FS) policy whose expected cumulative regret grows in the order of log T. In spite of having a slower asymptotic growth rate, FS requires a problem-dependent parameter as an input and its practical performance appears worse than the UCB-like policy for reasonably large T. Taking into account these factors, we suggest to use the UCB-like policy no matter whether the cost is continuous or discrete or unknown.

Date/Time24/01/2018 14:30-16:00
VenueKKL1301, 13/F K.K. Leung Building, The University of Hong Kong

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