Research
Working papers
"Multibrand Price Dispersion ", February 2024 (with John Vickers).
"Plan S: an economist's perspective", August 2021
Selected published papers
My published papers can usually be found using the links at the top of this page (please contact me if you have problems doing so). A selection of my journal articles is:
"Welfare Effects of Price Discrimination By A Multiproduct Monopolist", (1991), Rand Journal of Economics 22: 571-580 (with John Vickers).
"Price Discrimination, Competition and Regulation" (1993), Journal of Industrial Economics 41: 3335-359 (with John Vickers).
“Multiproduct Nonlinear Pricing”, (1996), Econometrica 64: 51-76.
"The Access Pricing Problem: A Synthesis", (1996), Journal of Industrial Economics 44: 131-150 (with Chris Doyle and John Vickers).
“Network Interconnection in Telecommunications”, (1998), Economic Journal 108: 545-564.
“Price Discrimination by a Many-Product Firm”, (1999), Review of Economic Studies 66: 151-168.
"Optimal Regulation With Unknown Demand and Cost Functions", (1999), Journal of Economic Theory 84: 196--215.
"The Density of the Maximum Likelihood Estimator", (1999), Econometrica 67: 1459-1470 (with Grant Hillier).
"Multi-Dimensional Screening: A User's Guide", (1999), European Economic Review 43: 959-979 (with Jean-Charles Rochet).
"Optimal Multi-Object Auctions", (2000), Review of Economic Studies 67: 455-481.
“Competitive Price Discrimination”, (2001), Rand Journal of Economics 32: 579-605 (with John Vickers).
"Access Pricing, Bypass, and Universal Service", (2001), American Economic Review 91: 297-301.
"Public Service Broadcasting ", (2005), Fiscal Studies 26: 281-295.
“Competition in Two-sided Markets”, (2006), Rand Journal of Economics 37: 668-691.
"Regulation, Competition, and Liberalization ", (2006), Journal of Economic Literature 44: 325-366 (with David Sappington).
"Recent Developments in the Theory of Price Discrimination", (2006), chapter in Advances in Economics and Econometrics: Ninth World Congress of the Econometric Society.
"Two-sided Markets, Competitive Bottlenecks, and Exclusive Contracts", (2007), Economic Theory 32: 353-380 (with Julian Wright).
"Interactions Between Competition and Consumer Policy", (2008), Competition Policy International 4:97-147.
"Mobile Call Termination", (2009), Economic Journal 119: F270-307.
“Prominence and Consumer Search”, (2009), Rand Journal of Economics 40(2): 209-233 (with John Vickers and Jidong Zhou).
"Consumer Protection and the Incentive to Become Informed", (2009), Journal of the European Economic Association 7: 399-410 (with John Vickers and Jidong Zhou).
"Inattentive Consumers and Product Quality", (2009), Journal of the European Economic Association 7: 411-422 (with Yongmin Chen).
"Competitive Non-linear Pricing and Bundling ", (2010), Review of Economics Studies 77: 30-60 (with John Vickers).
"Behavioral Economics As Applied To Firms: A Primer", (2010), Competition Policy International 6: 3-45 (with Steffen Huck).
“A Model of Delegated Project Choice”, (2010), Econometrica 78: 213-244 (with John Vickers).
"Paying for Prominence", (2011), Economic Journal 121: F368-F393 (with Jidong Zhou).
"Consumer Protection and Contingent Charges " (2012), Journal of Economic Literature 50: 477-499 (with John Vickers).
"A More General Theory of Commodity Bundling", (2013), Journal of Economic Theory 148: 448-472.
"Opening Access to Research", (2015), Economic Journal 125: F1-F30.
"Search and Ripoff Externalities", (2015), Review of Industrial Organization 47: 273-302.
"Which Demand Systems Can Be Generated by Discrete Choice? ", (2015), Journal of Economic Theory 158: 293-307 (with John Vickers).
"Search Deterrence", (2016), Review of Economic Studies 81: 26-57 (with Jidong Zhou).
"Nonlinear Pricing", (2016), Annual Review of Economics 8: 583-614.
“Ordered Consumer Search”, (2017), Journal of the European Economic Association 15: 989-1024.
"Multiproduct Pricing Made Simple", (2018), Journal of Political Economy 126: 1444-1471 (with John Vickers).
"Discriminating Against Captive Customers", (2019), American Economic Review: Insights 1: 257-272 (with John Vickers).
"Patterns of Competitive Interaction", (2022), Econometrica 90: 153-191 (with John Vickers).
"Consumer Information and the Limits to Competition", (2022), American Economic Review 112: 534-577 (with Jidong Zhou).
"Multiproduct Cost-Passthrough: Edgeworth's Paradox Revisited ", (2023), Journal of Political Economy 131: 2645-65 (with John Vickers).