IDEAS home Printed from https://ideas.repec.org/a/bla/jemstr/v27y2018i1p3-22.html
   My bibliography  Save this article

Do retail mergers affect competition? Evidence from grocery retailing

Author

Listed:
  • Daniel S. Hosken
  • Luke M. Olson
  • Loren K. Smith

Abstract

This study estimates the price effects of horizontal mergers in the U.S. grocery retailing industry. We examine fourteen regions affected by mergers, including mergers in highly concentrated and relatively unconcentrated markets. We identify price effects by comparing markets affected by mergers to unaffected markets using difference‐in‐difference estimation with three different comparison groups, propensity score weights, and by using the synthetic control method. Our results are robust to the choice of control group and estimation technique. We find that mergers in highly concentrated markets are most frequently associated with price increases, and mergers in less concentrated markets are most often associated with price decreases.

Suggested Citation

  • Daniel S. Hosken & Luke M. Olson & Loren K. Smith, 2018. "Do retail mergers affect competition? Evidence from grocery retailing," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 27(1), pages 3-22, March.
    • Handle: RePEc:bla:jemstr:v:27:y:2018:i:1:p:3-22
    DOI: 10.1111/jems.12218
    as

    Download full text from publisher

    File URL: https://doi.org/10.1111/jems.12218
    Download Restriction: no
    File URL: https://libkey.io/10.1111/jems.12218?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Richard K. Crump & V. Joseph Hotz & Guido W. Imbens & Oscar A. Mitnik, 2009. "Dealing with limited overlap in estimation of average treatment effects," Biometrika, Biometrika Trust, vol. 96(1), pages 187-199.
    2. Emek Basker (ed.), 2016. "Handbook on the Economics of Retailing and Distribution," Books, Edward Elgar Publishing, number 15905.
    3. Bliss, Christopher, 1988. "A Theory of Retail Pricing," Journal of Industrial Economics, Wiley Blackwell, vol. 36(4), pages 375-391, June.
    4. Marie-Laure Allain & Claire Chambolle & Stéphane Turolla & Sofia Villas-Boas, 2013. "The Impact of Retail Mergers on Food Prices: Evidence from France," Working Papers hal-00920460, HAL.
    5. Robin A. Prager & Timothy H. Hannan, 1998. "Do Substantial Horizontal Mergers Generate Significant Price Effects? Evidence From The Banking Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 46(4), pages 433-452, December.
    6. Kim, E Han & Singal, Vijay, 1993. "Mergers and Market Power: Evidence from the Airline Industry," American Economic Review, American Economic Association, vol. 83(3), pages 549-569, June.
    7. Christopher T. Taylor & Daniel S. Hosken, 2007. "The Economic Effects Of The Marathon‐Ashland Joint Venture: The Importance Of Industry Supply Shocks And Vertical Market Structure," Journal of Industrial Economics, Wiley Blackwell, vol. 55(3), pages 419-451, September.
    8. Leemore Dafny, 2009. "Estimation and Identification of Merger Effects: An Application to Hospital Mergers," Journal of Law and Economics, University of Chicago Press, vol. 52(3), pages 523-550, August.
    9. A. Colin Cameron & Jonah B. Gelbach & Douglas L. Miller, 2011. "Robust Inference With Multiway Clustering," Journal of Business & Economic Statistics, Taylor & Francis Journals, vol. 29(2), pages 238-249, April.
    10. Keisuke Hirano & Guido W. Imbens & Geert Ridder, 2003. "Efficient Estimation of Average Treatment Effects Using the Estimated Propensity Score," Econometrica, Econometric Society, vol. 71(4), pages 1161-1189, July.
    11. Jerry Hausman & Ephraim Leibtag, 2007. "Consumer benefits from increased competition in shopping outlets: Measuring the effect of Wal-Mart," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 22(7), pages 1157-1177.
    12. Orley Ashenfelter & Daniel Hosken & Matthew Weinberg, 2014. "Did Robert Bork Understate the Competitive Impact of Mergers? Evidence from Consummated Mergers," Journal of Law and Economics, University of Chicago Press, vol. 57(S3), pages 67-100.
    13. Daniel S. Hosken & Luke M. Olson & Loren K. Smith, 2016. "Can Entry Or Exit Event Studies Inform Horizontal Merger Analysis? Evidence From Grocery Retailing," Economic Inquiry, Western Economic Association International, vol. 54(1), pages 342-360, January.
    14. Unknown & Dennis Carlton, 2009. "Why We Need to Measure the Effect of Merger Policy and How to Do It," CPI Journal, Competition Policy International, vol. 5.
    15. repec:wly:soecon:v:80:3:y:2014:p:565-585 is not listed on IDEAS
    16. Guido W. Imbens, 2015. "Matching Methods in Practice: Three Examples," Journal of Human Resources, University of Wisconsin Press, vol. 50(2), pages 373-419.
    17. James M. MacDonald, 2000. "Demand, Information, and Competition: Why Do Food Prices Fall at Seasonal Demand Peaks?," Journal of Industrial Economics, Wiley Blackwell, vol. 48(1), pages 27-45, March.
    18. Dario Focarelli & Fabio Panetta, 2003. "Are Mergers Beneficial to Consumers? Evidence from the Market for Bank Deposits," American Economic Review, American Economic Association, vol. 93(4), pages 1152-1172, September.
    19. Bart J. Bronnenberg & Michael W. Kruger & Carl F. Mela, 2008. "—The IRI Marketing Data Set," Marketing Science, INFORMS, vol. 27(4), pages 745-748, 07-08.
    20. Borenstein, Severin, 1990. "Airline Mergers, Airport Dominance, and Market Power," American Economic Review, American Economic Association, vol. 80(2), pages 400-404, May.
    21. Guido W. Imbens, 2004. "Nonparametric Estimation of Average Treatment Effects Under Exogeneity: A Review," The Review of Economics and Statistics, MIT Press, vol. 86(1), pages 4-29, February.
    22. Emek Basker & Michael Noel, 2009. "The Evolving Food Chain: Competitive Effects of Wal‐Mart's Entry into the Supermarket Industry," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 18(4), pages 977-1009, December.
    23. Lal, Rajiv & Matutes, Carmen, 1994. "Retail Pricing and Advertising Strategies," The Journal of Business, University of Chicago Press, vol. 67(3), pages 345-370, July.
    24. Daniel Hanner & Daniel Hosken & Luke M. Olson & Loren K. Smith, 2015. "Dynamics in a Mature Industry: Entry, Exit, and Growth of Big‐Box Grocery Retailers," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 24(1), pages 22-46, March.
    25. John Simpson & Christopher Taylor, 2008. "Do Gasoline Mergers Affect Consumer Prices? The Marathon Ashland Petroleum and Ultramar Diamond Shamrock Transaction," Journal of Law and Economics, University of Chicago Press, vol. 51(1), pages 135-152, February.
    26. Orley Ashenfelter & David Ashmore & Jonathan Baker & Suzanne Gleason & Daniel Hosken, 2006. "Empirical Methods in Merger Analysis: Econometric Analysis of Pricing in FTC v. Staples," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 13(2), pages 265-279.
    27. Austin Nichols, 2007. "Causal inference with observational data," Stata Journal, StataCorp LP, vol. 7(4), pages 507-541, December.
    28. Judith A. Chevalier & Anil K. Kashyap & Peter E. Rossi, 2003. "Why Don't Prices Rise During Periods of Peak Demand? Evidence from Scanner Data," American Economic Review, American Economic Association, vol. 93(1), pages 15-37, March.
    29. Deborah Haas-Wilson & Christopher Garmon, 2011. "Hospital Mergers and Competitive Effects: Two Retrospective Analyses," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 18(1), pages 17-32.
    30. Richard J. Volpe & Chenguang Li, 2012. "On the Frequency, Depth, and Duration of Sales at High–Low Pricing Supermarkets," Agribusiness, John Wiley & Sons, Ltd., vol. 28(2), pages /, March.
    31. Abadie, Alberto & Diamond, Alexis & Hainmueller, Jens, 2010. "Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California’s Tobacco Control Program," Journal of the American Statistical Association, American Statistical Association, vol. 105(490), pages 493-505.
    32. Daniel Hosken & David Reiffen, 2004. "How Retailers Determine Which Products Should Go on Sale: Evidence From Store-Level Data," Journal of Consumer Policy, Springer, vol. 27(2), pages 141-177, June.
    33. Fabio Panetta & Dario Focarelli, 2003. "Are Mergers Beneficial to Consumers? Evidence from the Italian Market for Bank Deposits," CEIS Research Paper 10, Tor Vergata University, CEIS.
    34. Imbens,Guido W. & Rubin,Donald B., 2015. "Causal Inference for Statistics, Social, and Biomedical Sciences," Cambridge Books, Cambridge University Press, number 9780521885881, September.
    35. Steven Tenn, 2011. "The Price Effects of Hospital Mergers: A Case Study of the Sutter-Summit Transaction," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 18(1), pages 65-82.
    36. Austin Nichols, 2008. "Erratum and discussion of propensity-score reweighting," Stata Journal, StataCorp LP, vol. 8(4), pages 532-539, December.
    37. repec:bla:jindec:v:46:y:1998:i:4:p:433-52 is not listed on IDEAS
    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. Elena Argentesi & Paolo Buccirossi & Roberto Cervone & Tomaso Duso & Alessia Marrazzo, 2018. "Price or Variety? An Evaluation of Mergers Effects in Grocery Retailing," CESifo Working Paper Series 7035, CESifo.
    2. Marie-Laure Allain & Claire Chambolle & Stéphane Turolla, 2022. "The Effect of Input Price Discrimination on Retail Prices: Theory and Evidence from France," Working Papers SMART 22-06, INRAE UMR SMART.
    3. Allain, Marie-Laure & Avignon, Rémi & Chambolle, Claire, 2020. "Purchasing alliances and product variety," International Journal of Industrial Organization, Elsevier, vol. 73(C).
    4. Dennis Rickert & Jan Philip Schain & Joel Stiebale, 2021. "Local Market Structure and Consumer Prices: Evidence from a Retail Merger," Journal of Industrial Economics, Wiley Blackwell, vol. 69(3), pages 692-729, September.
    5. Stöhr, Annika, 2021. "Price effects of horizontal mergers: A retrospective on retrospectives," Ilmenau Economics Discussion Papers 151, Ilmenau University of Technology, Institute of Economics.
    6. Joel Stiebale & Florian Szücs, 2022. "Mergers and market power: evidence from rivals' responses in European markets," RAND Journal of Economics, RAND Corporation, vol. 53(4), pages 678-702, December.
    7. Meilin Ma & Tina L Saitone & Richard J Volpe & Richard J Sexton & Michelle Saksena & Craig GundersenEditor, 2019. "Market Concentration, Market Shares, and Retail Food Prices: Evidence from the U.S. Women, Infants, and Children Program," Applied Economic Perspectives and Policy, Agricultural and Applied Economics Association, vol. 41(3), pages 542-562.
    8. repec:ags:aaea22:336009 is not listed on IDEAS
    9. Dennis W. Carlton & Mark A. Israel, 2021. "Effects of the 2010 Horizontal Merger Guidelines on Merger Review: Based on Ten Years of Practical Experience," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 58(1), pages 213-234, February.
    10. Argentesi, Elena & Buccirossi, Paolo & Cervone, Roberto & Duso, Tomaso & Marrazzo, Alessia, 2021. "The effect of mergers on variety in grocery retailing," International Journal of Industrial Organization, Elsevier, vol. 79(C).
    11. Zeballos, Eliana & Dong, Xiao & Islamaj, Ergys, 2023. "A Disaggregated View of Market Concentration in the Food Retail Industry," USDA Miscellaneous 333546, United States Department of Agriculture.
    12. Díaz, Fernando & Galetovic, Alexander & Muñoz, Roberto & Tapia, Jocelyn, 2024. "Unraveling the price-concentration relationship: The Role of national distribution centers in Chilean supermarket industry consolidation," Economic Modelling, Elsevier, vol. 130(C).
    13. Ralph B. Siebert, 2022. "What Determines Heterogeneous Merger Effects on Competitive Outcomes?," Journal of Industrial Economics, Wiley Blackwell, vol. 70(1), pages 217-256, March.
    14. MacDonald, James M. & Dong, Xiao & Fuglie, Keith O., 2023. "Concentration and Competition in U.S. Agribusiness," Economic Information Bulletin 337566, United States Department of Agriculture, Economic Research Service.
    15. Meilin Ma & Tina L. Saitone & Richard J. Volpe & Richard J. Sexton & Michelle Saksena, 2019. "Market Concentration, Market Shares, and Retail Food Prices: Evidence from the U.S. Women, Infants, and Children Program," Applied Economic Perspectives and Policy, John Wiley & Sons, vol. 41(3), pages 542-562, September.
    16. Norbert Maier & Julie Runge Jørgensen & Asger Lunde & Otto Toivanen, 2021. "Ex-post Analysis of the TeliaSonera-Chess 2005 Merger," De Economist, Springer, vol. 169(2), pages 141-178, May.
    17. Richards, Timothy J. & Paudel, Ujjwol, 2024. "Minimum Wages and Pass-Through," 2024 Annual Meeting, July 28-30, New Orleans, LA 343648, Agricultural and Applied Economics Association.
    18. Rebecca Cleary & Lauren Chenarides, 2022. "Food retail profits, competition, and the Great Recession," Agribusiness, John Wiley & Sons, Ltd., vol. 38(3), pages 557-578, July.
    19. Jon Steinman, 2020. "Consumer Food Co‐ops in the Age of Grocery Giants," American Journal of Economics and Sociology, Wiley Blackwell, vol. 79(3), pages 833-875, May.

    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. Orley Ashenfelter & Daniel Hosken & Matthew Weinberg, 2014. "Did Robert Bork Understate the Competitive Impact of Mergers? Evidence from Consummated Mergers," Journal of Law and Economics, University of Chicago Press, vol. 57(S3), pages 67-100.
    2. Marie-Laure Allain & Claire Chambolle & Stéphane Turolla & Sofia Villas-Boas, 2013. "The Impact of Retail Mergers on Food Prices: Evidence from France," Working Papers hal-00920460, HAL.
    3. Marie-Laure Allain & Claire Chambolle & Stéphane Turolla & Sofia B. Villas-Boas, 2017. "Retail Mergers and Food Prices: Evidence from France," Journal of Industrial Economics, Wiley Blackwell, vol. 65(3), pages 469-509, September.
    4. Orley C. Ashenfelter & Daniel S. Hosken & Matthew C. Weinberg, 2015. "Efficiencies brewed: pricing and consolidation in the US beer industry," RAND Journal of Economics, RAND Corporation, vol. 46(2), pages 328-361, June.
    5. Juan Luis Jiménez & Jordi Perdiguero, 2018. "Mergers and difference-in-difference estimator: Why firms do not increase prices?," European Journal of Law and Economics, Springer, vol. 45(2), pages 285-311, April.
    6. Brito, Duarte & Pereira, Pedro & Ramalho, Joaquim J.S., 2013. "Mergers, coordinated effects and efficiency in the Portuguese non-life insurance industry," International Journal of Industrial Organization, Elsevier, vol. 31(5), pages 554-568.
    7. Philippe Choné & Laurent Linnemer, 2012. "A Treatment Effect Method for Merger Analysis with an Application to Parking Prices in P aris," Journal of Industrial Economics, Wiley Blackwell, vol. 60(4), pages 631-656, December.
    8. Orley C. Ashenfelter & Daniel Hosken & Matthew Weinberg, 2009. "Generating Evidence to Guide Merger Enforcement," Working Papers 1137, Princeton University, Department of Economics, Center for Economic Policy Studies..
    9. Joel Stiebale & Florian Szücs, 2022. "Mergers and market power: evidence from rivals' responses in European markets," RAND Journal of Economics, RAND Corporation, vol. 53(4), pages 678-702, December.
    10. Gugler, Klaus & Szücs, Florian, 2016. "Merger externalities in oligopolistic markets," International Journal of Industrial Organization, Elsevier, vol. 47(C), pages 230-254.
    11. Somnath Das, 2019. "Effect of Merger on Market Price and Product Quality: American and US Airways," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 55(3), pages 339-374, November.
    12. Orley Ashenfelter & Daniel Hosken & Matthew Weinberg, 2009. "Generating Evidence to Guide Merger Enforcement," CPI Journal, Competition Policy International, vol. 5.
    13. Christos Genakos & Andreas Lamprinidis & James Walker, 2023. "Evaluating merger effects," POID Working Papers 072, Centre for Economic Performance, LSE.
    14. Franco Mariuzzo & Peter L. Ormosi, 2017. "Post-merger price dynamics matter, so why do merger retrospectives ignore them?," Working Paper series, University of East Anglia, Centre for Competition Policy (CCP) 2016-05, Centre for Competition Policy, University of East Anglia, Norwich, UK..
    15. Packalen, Mikko & Sen, Anindya, 2013. "Static and dynamic merger effects: A market share based empirical analysis," International Review of Law and Economics, Elsevier, vol. 36(C), pages 12-24.
    16. Genakos, Christos & Lamprinidis, Andreas & Walker, James, 2023. "Evaluating merger effects," LSE Research Online Documents on Economics 121325, London School of Economics and Political Science, LSE Library.
    17. Christos Genakos & Andreas Lamprinidis & James Walker, 2023. "Evaluating merger effects," CEP Discussion Papers dp1921, Centre for Economic Performance, LSE.
    18. Robert Town & Douglas Wholey & Roger Feldman & Lawton R. Burns, 2006. "The Welfare Consequences of Hospital Mergers," NBER Working Papers 12244, National Bureau of Economic Research, Inc.
    19. Orley Ashenfelter & Daniel Hosken, 2008. "The Effect of Mergers on Consumer Prices: Evidence from Five Selected Case Studies," NBER Working Papers 13859, National Bureau of Economic Research, Inc.
    20. Thomas Koch & Shawn W. Ulrick, 2021. "Price Effects Of A Merger: Evidence From A Physicians' Market," Economic Inquiry, Western Economic Association International, vol. 59(2), pages 790-802, April.

    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:bla:jemstr:v:27:y:2018:i:1:p:3-22. 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: Wiley Content Delivery (email available below). General contact details of provider: http://www.kellogg.northwestern.edu/research/journals/JEMS/ .

    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.