IDEAS home Printed from https://ideas.repec.org/a/eee/indorg/v26y2008i2p459-472.html
   My bibliography  Save this article

Price, price dispersion and number of sellers at a low entry cost shopbot

Author

Listed:
  • Haynes, Michelle
  • Thompson, Steve

Abstract

Shopbots function as market intermediaries by providing unprecedented quantities of information to buyers and sellers. This paper explores the role of market structure across shopbot mediated markets using an unbalanced panel of 399 digital camera models. It extends prior work by using an ultra-low entry cost site, additionally allowing controls for life cycle and popularity effects. We find a robust negative relationship between seller number and price, which persists even as markets become crowded with sellers. The results are capable of either an SCP or a Carlson-McAfee heterogeneous cost interpretation, but observed entry behaviour here is consistent with the latter.

Suggested Citation

  • Haynes, Michelle & Thompson, Steve, 2008. "Price, price dispersion and number of sellers at a low entry cost shopbot," International Journal of Industrial Organization, Elsevier, vol. 26(2), pages 459-472, March.
  • Handle: RePEc:eee:indorg:v:26:y:2008:i:2:p:459-472
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0167-7187(07)00030-6
    Download Restriction: Full text for ScienceDirect subscribers only
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Karen Clay & Ramayya Krishnan & Eric Wolff & Danny Fernandes, 2002. "Retail Strategies on the Web: Price and Non–price Competition in the Online Book Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 50(3), pages 351-367, September.
    2. Gandal, Neil, 2001. "The dynamics of competition in the internet search engine market," International Journal of Industrial Organization, Elsevier, vol. 19(7), pages 1103-1117, July.
    3. Karen Clay & Ramayya Krishnan & Eric Wolff, 2001. "Prices and Price Dispersion on the Web: Evidence from the Online Book Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 49(4), pages 521-539, December.
    4. Varian, Hal R, 1980. "A Model of Sales," American Economic Review, American Economic Association, vol. 70(4), pages 651-659, September.
    5. Neil Gandal, 1994. "Hedonic Price Indexes for Spreadsheets and an Empirical Test for Network Externalities," RAND Journal of Economics, The RAND Corporation, vol. 25(1), pages 160-170, Spring.
    6. Clay, Karen, et al, 2002. "Retail Strategies on the Web: Price and Non-price Competition in the Online Book Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 50(3), pages 351-367, September.
    7. Michael R. Baye & John Morgan & Patrick Scholten, 2004. "Temporal Price Dispersion: Evidence from an Online Consumer Electronics Market," Working Papers 2004-04, Indiana University, Kelley School of Business, Department of Business Economics and Public Policy.
    8. Carlson, John A & McAfee, R Preston, 1983. "Discrete Equilibrium Price Dispersion," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 480-493, June.
    9. Glenn Ellison & Sara Fisher Ellison, 2005. "Lessons About Markets from the Internet," Journal of Economic Perspectives, American Economic Association, vol. 19(2), pages 139-158, Spring.
    10. Mats A. Bergman & Niklas Rudholm, 2003. "The Relative Importance of Actual and Potential Competition: Empirical Evidence From the Pharmaceuticals Market," Journal of Industrial Economics, Wiley Blackwell, vol. 51(4), pages 455-467, December.
    11. Hurdle, Gloria J, et al, 1989. "Concentration, Potential Entry, and Performance in the Airline Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 38(2), pages 119-139, December.
    12. Michael R. Baye & John Morgan, 2001. "Information Gatekeepers on the Internet and the Competitiveness of Homogeneous Product Markets," American Economic Review, American Economic Association, vol. 91(3), pages 454-474, June.
    13. Barron, John M. & Taylor, Beck A. & Umbeck, John R., 2004. "Number of sellers, average prices, and price dispersion," International Journal of Industrial Organization, Elsevier, vol. 22(8-9), pages 1041-1066, November.
    14. Reinhard Selten, 1973. "A Simple Model of Imperfect Competition, where 4 are Few and 6 are Many," Center for Mathematical Economics Working Papers 008, Center for Mathematical Economics, Bielefeld University.
    15. Karel Cool & Lars‐Hendrik Röller & Benoit Leleux, 1999. "The relative impact of actual and potential rivalry on firm profitability in the pharmaceutical industry," Strategic Management Journal, Wiley Blackwell, vol. 20(1), pages 1-14, January.
    16. Stigler, George J., 2011. "Economics of Information," Economic Policy, Russian Presidential Academy of National Economy and Public Administration, vol. 5, pages 35-49.
    17. Baye, Michael & GATTI, RUPERT J & Kattuman, Paul & Morgan, John, 2004. "Estimating Firm-Level Demand at a Price Comparison Site: Accounting for Shoppers and the Number of Competitors," Competition Policy Center, Working Paper Series qt923692d1, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
    18. John W. Pratt & David A. Wise & Richard Zeckhauser, 1979. "Price Differences in almost Competitive Markets," The Quarterly Journal of Economics, Oxford University Press, vol. 93(2), pages 189-211.
    19. Geroski, Paul, 2003. "The Evolution of New Markets," OUP Catalogue, Oxford University Press, number 9780199248896.
    20. Michael D. Smith & Erik Brynjolfsson, 2001. "Consumer Decision-making at an Internet Shopbot: Brand Still Matters," NBER Chapters, in: E-commerce, pages 541-558, National Bureau of Economic Research, Inc.
    21. Glenn Ellison & Sara Fisher Ellison, 2009. "Search, Obfuscation, and Price Elasticities on the Internet," Econometrica, Econometric Society, vol. 77(2), pages 427-452, March.
    22. Michael R. Baye & John Morgan & Patrick Scholten, 2004. "Price Dispersion In The Small And In The Large: Evidence From An Internet Price Comparison Site," Journal of Industrial Economics, Wiley Blackwell, vol. 52(4), pages 463-496, December.
    23. Michael D. Smith & Erik Brynjolfsson, 2001. "Consumer Decision-making at an Internet Shopbot: Brand Still Matters," NBER Chapters, in: E-commerce, pages 541-558, National Bureau of Economic Research, Inc.
    24. Bresnahan, Timothy F & Reiss, Peter C, 1991. "Entry and Competition in Concentrated Markets," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 977-1009, October.
    25. Rosenthal, Robert W, 1980. "A Model in Which an Increase in the Number of Sellers Leads to a Higher Price," Econometrica, Econometric Society, vol. 48(6), pages 1575-1579, September.
    26. Karen Clay & Ramayya Krishnan & Eric Wolff, 2001. "Prices and Price Dispersion on the Web: Evidence from the Online Book Industry," NBER Chapters, in: E-commerce, pages 521-539, National Bureau of Economic Research, Inc.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Michelle Haynes & Steve Thompson, 2012. "The Economic Significance of User-Generated Feedback," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 19(1), pages 153-166, February.
    2. Lach, Saul & Moraga-González, José-Luis, 2009. "Heterogeneous Price Information and the Effect of Competition," CEPR Discussion Papers 7319, C.E.P.R. Discussion Papers.
    3. Jun Woo Kim & Sung Ho Ha, 2014. "Price Comparisons on the Internet Based on Computational Intelligence," PLOS ONE, Public Library of Science, vol. 9(9), pages 1-13, September.
    4. Mauring, Eeva, 2022. "Search and Price Discrimination Online," CEPR Discussion Papers 15729, C.E.P.R. Discussion Papers.
    5. Saul Lach & José L. Moraga†González, 2017. "Asymmetric Price Effects of Competition," Journal of Industrial Economics, Wiley Blackwell, vol. 65(4), pages 767-803, December.
    6. Hackl, Franz & Kummer, Michael E. & Winter-Ebmer, Rudolf & Zulehner, Christine, 2014. "Market structure and market performance in E-commerce," European Economic Review, Elsevier, vol. 68(C), pages 199-218.
    7. Daniel M. Ringel & Bernd Skiera, 2016. "Visualizing Asymmetric Competition Among More Than 1,000 Products Using Big Search Data," Marketing Science, INFORMS, vol. 35(3), pages 511-534, May.
    8. Lindgren, Charlie & Daunfeldt, Sven-Olov & Rudholm, Niklas, 2021. "Pricing In Retail Markets With Low Search Costs: Evidence From A Price Comparison Website," HFI Working Papers 18, Institute of Retail Economics (Handelns Forskningsinstitut).
    9. Kenneth Gillingham, Hao Deng, Ryan Wiser, Naim Darghouth, Gregory Nemet, Galen Barbose, Varun Rai, and Changgui Dong, 2016. "Deconstructing Solar Photovoltaic Pricing," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).
    10. Anania, Giovanni & Nistico, Rosanna, 2012. "Price dispersion, search costs and consumers and sellers heterogeneity in retail food markets," 2012 Conference, August 18-24, 2012, Foz do Iguacu, Brazil 125594, International Association of Agricultural Economists.
    11. Böheim, René & Hackl, Franz & Hölzl-Leitner, Michael, 2021. "The impact of price adjustment costs on price dispersion in e-commerce," International Journal of Industrial Organization, Elsevier, vol. 77(C).
    12. Lindgren, Charlie & Li, Yujiao & Rudholm, Niklas, 2020. "Why do firms compete on price comparison websites? The impact on productivity, profits, and wages," HFI Working Papers 14, Institute of Retail Economics (Handelns Forskningsinstitut).
    13. Chhabra, Meenal & Das, Sanmay & Sarne, David, 2014. "Expert-mediated sequential search," European Journal of Operational Research, Elsevier, vol. 234(3), pages 861-873.
    14. Moraga-González, José Luis & Sándor, Zsolt & Wildenbeest, Matthijs R., 2017. "Nonsequential search equilibrium with search cost heterogeneity," International Journal of Industrial Organization, Elsevier, vol. 50(C), pages 392-414.
    15. Michelle Haynes & Steve Thompson, 2013. "Entry and Exit Behavior in the Absence of Sunk Costs: Evidence from a Price Comparison Site," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 42(1), pages 1-23, February.
    16. Gao, Xue & Rai, Varun & Nemet, Gregory F., 2022. "The roles of learning mechanisms in services: Evidence from US residential solar installations," Energy Policy, Elsevier, vol. 167(C).
    17. Stephen McDonald & Colin Wren, 2017. "Consumer Search Ability, Price Dispersion and the Digital Divide," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 79(2), pages 234-250, April.
    18. Anania, Giovanni & Nisticò, Rosanna, 2014. "Price dispersion and seller heterogeneity in retail food markets," Food Policy, Elsevier, vol. 44(C), pages 190-201.
    19. Michelle Haynes & Steve Thompson, 2012. "Developments in Electronic Markets: An Introduction," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 19(1), pages 99-102, February.
    20. Ilin, Cornelia & Shi, Guanming, 2016. "Competition, Price Dispersion and Capacity Constraints: The Case of the U.S. Corn Seed Industry," 2016 Annual Meeting, July 31-August 2, Boston, Massachusetts 236532, Agricultural and Applied Economics Association.
    21. Michelle Haynes & Steve Thompson & Peter W. Wright, 2014. "New Model Introductions, Cannibalization and Market Stealing: Evidence from Shopbot Data," Manchester School, University of Manchester, vol. 82(4), pages 385-408, July.
    22. repec:smu:ecowpa:1301 is not listed on IDEAS

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Hackl, Franz & Kummer, Michael E. & Winter-Ebmer, Rudolf & Zulehner, Christine, 2014. "Market structure and market performance in E-commerce," European Economic Review, Elsevier, vol. 68(C), pages 199-218.
    2. Baye, Michael & Morgan, John, 2004. "Brand and Price Advertising in Online Markets," Competition Policy Center, Working Paper Series qt9760k3hz, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
    3. Michael R. Baye & John Morgan, 2009. "Brand and Price Advertising in Online Markets," Management Science, INFORMS, vol. 55(7), pages 1139-1151, July.
    4. Grewal, Dhruv & Janakiraman, Ramkumar & Kalyanam, Kirthi & Kannan, P.K. & Ratchford, Brian & Song, Reo & Tolerico, Stephen, 2010. "Strategic Online and Offline Retail Pricing: A Review and Research Agenda," Journal of Interactive Marketing, Elsevier, vol. 24(2), pages 138-154.
    5. Xulia González & Daniel Miles-Touya, 2018. "Price dispersion, chain heterogeneity, and search in online grocery markets," SERIEs: Journal of the Spanish Economic Association, Springer;Spanish Economic Association, vol. 9(1), pages 115-139, March.
    6. Thomas A. Weber & Zhiqiang (Eric) Zheng, 2007. "A Model of Search Intermediaries and Paid Referrals," Information Systems Research, INFORMS, vol. 18(4), pages 414-436, December.
    7. Morgan, John & Ong, David & Zhong, Zemin (Zachary), 2018. "Location still matters: Evidence from an online shopping field experiment," Journal of Economic Behavior & Organization, Elsevier, vol. 146(C), pages 43-54.
    8. Anindya Ghose & Yuliang Yao, 2011. "Using Transaction Prices to Re-Examine Price Dispersion in Electronic Markets," Information Systems Research, INFORMS, vol. 22(2), pages 269-288, June.
    9. Randy A. Nelson & Richard Cohen & Frederik Roy Rasmussen, 2007. "An Analysis of Pricing Strategy and Price Dispersion on the Internet," Eastern Economic Journal, Eastern Economic Association, vol. 33(1), pages 95-110, Winter.
    10. Jeffrey R. Brown & Austan Goolsbee, 2002. "Does the Internet Make Markets More Competitive? Evidence from the Life Insurance Industry," Journal of Political Economy, University of Chicago Press, vol. 110(3), pages 481-507, June.
    11. Alfredo Martin-Oliver & Vicente Salas-Fumas & Jesús Saurina, 2008. "Search Cost and Price Dispersion in Vertically Related Markets: The Case of Bank Loans and Deposits," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 33(4), pages 297-323, December.
    12. Giovanni Anania & Rosanna Nisticò, 2011. "Price Dispersion, Search Costs And Consumers And Sellers Heterogeneity In Retail Food Markets," Working Papers 201105, Università della Calabria, Dipartimento di Economia, Statistica e Finanza "Giovanni Anania" - DESF.
    13. Gatti, J.R.J. & Kattuman, P., 2003. "Online Price Dispersion Within and Between Seven European Countries," Cambridge Working Papers in Economics 0343, Faculty of Economics, University of Cambridge.
    14. Bachis, Enrico & Piga, Claudio A., 2011. "Low-cost airlines and online price dispersion," International Journal of Industrial Organization, Elsevier, vol. 29(6), pages 655-667.
    15. Lindgren, Charlie & Daunfeldt, Sven-Olov & Rudholm, Niklas, 2021. "Pricing In Retail Markets With Low Search Costs: Evidence From A Price Comparison Website," HFI Working Papers 18, Institute of Retail Economics (Handelns Forskningsinstitut).
    16. Ya-Ling Chiu & Jiangze Du & Jying-Nan Wang, 2022. "The Effects of Price Dispersion on Sales in the Automobile Industry: A Dynamic Panel Analysis," SAGE Open, , vol. 12(3), pages 21582440221, August.
    17. Böheim, René & Hackl, Franz & Hölzl-Leitner, Michael, 2021. "The impact of price adjustment costs on price dispersion in e-commerce," International Journal of Industrial Organization, Elsevier, vol. 77(C).
    18. Glenn Ellison & Sara Fisher Ellison, 2005. "Lessons About Markets from the Internet," Journal of Economic Perspectives, American Economic Association, vol. 19(2), pages 139-158, Spring.
    19. Kenneth Gillingham, Hao Deng, Ryan Wiser, Naim Darghouth, Gregory Nemet, Galen Barbose, Varun Rai, and Changgui Dong, 2016. "Deconstructing Solar Photovoltaic Pricing," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).
    20. Michael A. Arnold & Christine Saliba, 2003. "Price Dispersion in Online Markets: The Case of College Textbooks," Working Papers 03-02, University of Delaware, Department of Economics.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:indorg:v:26:y:2008:i:2:p:459-472. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/inca/505551 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.