Strategic Behavior and Social Outcomes in a Bottleneck Queue: Experimental Evidence

Date: 2014-08-13
By: Breinbjerg, Jesper (Department of Business and Economics)
Sebald, Alexander (Department of Economics)
Østerdal, Lars Peter (Department of Business and Economics)
URL: http://d.repec.org/n?u=RePEc:hhs:sdueko:2014_012&r=net
We consider a class of three-player queuing games where players independently choose when to arrive at a bottleneck facility that serves only one at a time. Players are impatient for service but cannot arrive before the facility opens and they dislike time spent in queue. We derive the equilibrium arrivals under the first-in-first-out (FIFO), last-in-first-out (LIFO), and service-in-random-order (SIRO) queue disciplines and compare these equilibrium predictions to outcomes from a laboratory experiment. LIFO provides higher equilibrium welfare than FIFO and SIRO since the players arrive such that lower congestion is induced. Experimental evidence confirms that employing different queue disciplines indeed affects the strategic behavior of players and thereby the level of congestion. The experimental participants do not, however, behave as prescribed by the equilibrium predictions. They obtain significantly higher welfare than prescribed by equilibrium under all queue disciplines. Our results moreover suggest that people perceive LIFO as the most unfair of the three disciplines although the theoretical results suggest that it is welfare optimal.
Keywords: Queue disciplines; congestion; equilibrium; experiments; fairness
JEL: C72 D62 D63 R41

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