A Variance Screen for Collusion

A Variance Screen for Collusion
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DOI:
10.2139/ssrn.683922
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发表时间:
2005-03
期刊:
IO: Empirical Studies of Firms & Markets
影响因子:
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通讯作者:
Rosa M. Abrantes-Metz;Christopher T. Taylor;Luke M. Froeb;John Geweke
Rosa M. Abrantes-Metz;Christopher T. Taylor;Luke M. Froeb;John Geweke
中科院分区:
其他
文献类型:
--
作者:
Rosa M. Abrantes-Metz;Christopher T. Taylor;Luke M. Froeb;John Geweke

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在本文中,我们研究了价格走势随着时间的推移,围绕投标操纵阴谋的崩溃。虽然平均值下降了16%,但标准差增加了200%以上。我们假设,在其他行业的阴谋将表现出类似的特点,并寻找“口袋”的低价格变化的指标,在路易斯维尔零售汽油行业的勾结。1996-2002年,我们在路易斯维尔周围没有观察到这样的地区。
In this paper, we examine price movements over time around the collapse of a bid-rigging conspiracy. While the mean decreased by sixteen percent, the standard deviation increased by over two hundred percent. We hypothesize that conspiracies in other industries would exhibit similar characteristics and search for “pockets” of low price variation as indicators of collusion in the retail gasoline industry in Louisville. We observe no such areas around Louisville in 1996-2002.