Experimental Design in Two-Sided Platforms: An Analysis of Bias
Experimental Design in Two-Sided Platforms: An Analysis of Bias
复制标题
两侧平台的实验设计:偏差分析
DOI:
10.1145/3391403.3399507
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Weintraub, Gabriel
中科院分区:
文献类型:
--
作者:
Johari, Ramesh;Li, Hannah;Weintraub, Gabriel
We develop an analytical framework to study experimental design in two-sided marketplaces. Many of these experiments exhibitinterference, where an intervention applied to one market participant influences the behavior of another participant. This interference leads to biased estimates of the treatment effect of the intervention. We develop a stochastic market model and associated mean field limit to capture dynamics in such experiments and use our model to investigate how the performance of different designs and estimators is affected by marketplace interference effects. Platforms typically use two common experimental designs: demand-side “customer” randomization () and supply-side “listing” randomization (), along with their associated estimators. We show that good experimental design depends on market balance; in highly demand-constrained markets,is unbiased, whereasis biased; conversely, in highly supply-constrained markets,is unbiased, whereasis biased. We also introduce and study a novel experimental design based ontwo-sided randomization() where both customers and listings are randomized to treatment and control. We show that appropriate choices ofdesigns can be unbiased in both extremes of market balance while yielding relatively low bias in intermediate regimes of market balance.This paper was accepted by David Simchi-Levi, revenue management and market analytics.
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DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
David Holtz;Sinan Aral
通讯作者:
Sinan Aral
DOI:
--
发表时间:
2019
期刊:
Management Sciences
影响因子:
--
作者:
Stefan Wager;Kuang Xu
通讯作者:
Kuang Xu
影响因子:
2
作者:
C. Blumberg
通讯作者:
C. Blumberg
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
R. Darling
通讯作者:
R. Darling
DOI:
10.1145/3097983.3098192
发表时间:
2017
期刊:
Proceedings of the 23rd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining
影响因子:
--
作者:
Martin Saveski;Jean Pouget;Guillaume Saint;Weitao Duan;Souvik Ghosh;Ya Xu;E. Airoldi
通讯作者:
E. Airoldi