C2C网上交易中信号机制的有效性分析

中国管理科学 ›› 2012, Vol. ›› Issue (1): 161-170.

C2C网上交易中信号机制的有效性分析

肖俊极¹, 刘玲²

1. 复旦大学管理学院,上海 200433;
2. 上海电力学院经济与管理学院,上海 200433

收稿日期:2009-12-20 修回日期:2011-08-20 出版日期:2012-02-29 发布日期:2012-03-09
基金资助:
自然科学基金青年科学基金项目(71002030)

The Effect of Signal Strategies in C2C E-marketplaces

XIAO Jun-ji¹, LIU Lin²

1. Management School, Fudan University, Shanghai 200433, China;
2. Economy and management School, Shunghai University of Electric Power, Shanghai 200433, China

Received:2009-12-20 Revised:2011-08-20 Online:2012-02-29 Published:2012-03-09

摘要/Abstract

摘要： 本文应用Berry等(1995)^[2]提出的离散选择需求模型和差异产品的伯川德竞争模型,并利用淘宝网上的交易数据,对声誉、消费者保障计划、保修服务及信息披露四种信号策略在网上交易中的作用进行了实证研究。需求估计结果表明消费者保障计划中的"7天无理由退换货"计划以及保修服务可以作为产品质量的信号;而在其他有效信号策略存在的情况下,消费者保障计划中的"先行赔付"计划以及卖家声誉作为质量信号的作用则被削弱。成本分析表明,信息披露虽然可以提高消费者购买的可能性,但是由于发出信号的成本太低,容易被低质量卖家所模仿,因此并不能作为有效的质量信号。本文首次从供给和需求两个方面分析了信号机制在信息不对称情况下的效应及其作用机制。

关键词: 信任, 信号机制, 网上交易

Abstract: Using the discrete choice model and the differentiated Bertrand- equilibrium model proposed by Berry et al.(1995)^[2] and data from Taobao.com, this paper examines the effectiveness of four signaling strategies:reputation, Buyer Protection Program, warranty services and information disclosure,by studying both the demand and the supply sides of the market. The results of demand side indicate that for the present trust mechanism in Taobao.com, the "7-Day" program in BPPs and warranty services can signal product quality. However, the "indemnity in advance" program in BPPs and reputation cannot lead to a partial separating equilibrium in the present of more effective signaling strategies. The results of supply side suggest that information disclosure can increase the probability of buyers purchase, but it cannot signal quality since it is easy for low-quality sellers to mimic the strategy of the high-quality sellers. This is the first study to analyze the mechanism and effect of signal strategies from both demand side and supply side.

Key words: trust, signal, online trading

中图分类号:

F062.9

肖俊极, 刘玲. C2C网上交易中信号机制的有效性分析[J]. 中国管理科学, 2012, (1): 161-170.

XIAO Jun-ji, LIU Lin. The Effect of Signal Strategies in C2C E-marketplaces[J]. Chinese Journal of Management Science, 2012, (1): 161-170.

参考文献

[1] Mas Colell,A.,Whinston,M.D., Green,J.R.. Microeconomic Theory [M], New York: Oxford University Press,1995.
[2] Berry, S., Levinsohn, J., Pakes, A.. Automobile prices in market equilibrium [J]. Econometrica, 1995,63:841-890.
[3] Livingston, J.. How valuable is a good reputation? A sample selection model of internet auctions [J]. Review of Economics and Statistics, 2005,87(3):453-465.
[4] 周黎安,张维迎,顾全林,沈懿. 信誉的价值:以网上拍卖交易为例[J]. 经济研究,2006,12:81-91.
[5] 李维安,吴德胜,徐皓. 网上交易中的声誉机制—来自淘宝网的证据[J]. 南开管理评论,2007,5:1-17.
[6] 杨居正,张维迎,周黎安. 信誉与管制的互补与替代—基于网上交易的实证研究[J]. 管理世界,2008,7:18-26.
[7] 肖俊极,刘玲. 消费者保障计划的有效性研究—基于C2C 网上交易的实证研究[J]. 财贸经济,2009,11:112-119.
[8] 刘玲,肖俊极. 消费者保障计划的作用机理——基于信号博弈的理论分析[J]. 南方经济,2010,12:43-59.
[9] Kreps,D.M., Wilson, R.. Reputation and imperfect information [J]. Journal of economic theory, 1982,27(2):253-279.
[10] Gal-Or, E.. Warranties as a signal of quality [J]. Canadian Journal of Economics, 1999,22(1):50-61.
[11] Moorthy, S., Srinivasan, K.. Signaling quality with a money-back guarantee: The role of transaction costs [J]. Marketing Science, 1995,14:442-466.
[12] Davis, S., Gerstner, E., Hagerty, M.. Money back guarantees in retailing: Matching products to consumer tastes [J]. Journal of Retailing,1995,71 (1): 7-22.
[13] Dewally, M., Ederington, L.. Reputation, certification, warranties, and information as remedies for seller-buyer information asymmetries: Lessons from the online comic book market [J]. Journal of Business, 2006,79(2):693-729.
[14] Berry, S.. Estimating discrete-choice models of product differentiation [J]. Rand Journal of Economics, 1994,25:242-262.
[15] Nevo,A.. A practitioner's guide to estimation of random coefficients logit models of demand [J]. Journal of Economics & Management Strategy, 2000,9(4): 513-548.
[16] Eaton, D. H.. Valuing Information: Evidence from Guitar Auctions on eBay . Working paper, Murray State University,2002.
[17] Steinbrück, Schaumburg.A picture says more than a thousand words: photographs as trust builders in e-commerce websites . Conference on Human Factors in Computing Systems,2002.