Antonoff, M. (1989) The Prodigy promise, Personal Computing, 1 May.
AOL (1992–1995) Form 10-Q.
Bobker, S. (1990) America Online and Prodigy, MacUser, 1 March.
Brower, E. (1989) Price and services war heats up on-line market, MacWeek, 24 January.
Brynjolfsson, E. and Kemerer, C. (1996) Network externalities in microcomputer software: an econometric analysis of the spreadsheet
market, Management Science, 42.
Business Wire (1990) GEnie service announces flat monthly rate of $4.95 for non-prime time access, 29 August.
Campbell-Kelly, M. (2003) From Airline Reservations to Sonic the Hedgehog, p. 238 (Cambridge, MA: MIT Press).
CompuServe (1997) Form 10-K.
Connor, M. (1993) America Online Inc.,, Reuters News, 20 April.
Dranove, D. and Gandal, N. (2003) The DVD vs. DIVX standard war: network effects and empirical evidence of preannouncement effects,
Journal of Economics and Management Strategy, 12.
Electronic Times (1986) Cost and complexity of online services for personal computers are putting off potential customers, 15 May.
Evans, D. (2003) The antitrust economics of multi-sided platform markets, Yale Journal on Regulation, 20(2).
Evans, D. and Schmalensee, R. (2005) The industrial organization of markets with two-sided platforms, NBER Working Paper 11603.
Farrell, J. and Klemperer, P. (2007) Coordination and lock-in: competition with switching costs and network effects, in: M. Armstrong & R.
Porter (Eds) Handbook of Industrial Organization, Vol. 3 (Amsterdam: North-Holland).
Glossbrenner, A. (1983) The Complete Handbook of Personal Computer Communications (New York: St Martin’s Press).
Glossbrenner, A. (1985) The Complete Handbook of Personal Computer Communications, 2nd edn (New York: St Martin’s Press).
Glossbrenner, A. (1990) The Complete Handbook of Personal Computer Communications, 3rd edn (New York: St Martin’s Press).
Glossbrenner, A. (1995) The Little Online Book (Berkeley: Peachpit Press).
Goolsbee, A. and Klenow, P. (2002) Evidence of learning and network externalities in the diffusion of home computers, Journal of Law and
Economics, 45.
Gowrisankaran, G. and Stavins, J. (2004) Network externalities and technology adoption: lessons from electronic payments, RAND
Journal of Economics, 35.
Hammonds, K. (1987) Suddenly, Videotex is finding an audience, Business Week, 19 October.
H&R Block (1981–1992) Form 10-K.
Harris, J. (1989) The gentrification of Videotex: CompuServe aims at a subscriber with broader tastes, Link-Up, 1 September.
Hays, L. (1994) Prodigy, America Online slash rates in price war to gain new subscribers, The Wall Street Journal, 13 October.
Interactive Facts (1994) CompuServe pulls away from pack—Prodigy flat, America Online triples in size, 26 September.
Katz, M. and Shapiro, C. (1994) System competition and network effects, Journal of Economic Perspectives, 8(2).
Kellner, M. (1992) Prodigy retools to grow with users, The Washington Times.
Kisor, H. A. (1985) New Videotex service offers user-to-user links, The Seattle Times, 10 March.
Koski, H. and Kretschmer, T. (2004) Survey on competing in network industries: firm strategies, market outcomes, and policy, Journal of
Industry, Competition, and Trade, 4.
Link-Up (1990) GEnie, Delphi lower online rates: flat-fee options are a trend in the industry, 1 September.
Link-Up (1992) America Online offers regional Chicago version, 1 September.
New York Times, The (1980) Software stake sold to Reader’s Digest, 25 September.
Newsbytes News Network (1992) Microsoft to support works on America Online, 1 April.
Newsbytes News Network (1993a) America Online drops rates, 20 April.
Newsbytes News Network (1994) Prodigy uses AOL problems to emphasize network, 3 February.
Ohashi, H. (2003) The role of network effects in the US VCR market, 1978–1986, Journal of Economics and Management Strategy, 12.
Orlando Sentinel (1993) Prodigy holds firm on July price increase, 22 April.
Park, S. (2004) Quantitative analysis of network externalities in competing technologies: the VCR case, Review of Economics and
Statistics, 86(4).
Pollack, A. (1981) Digest’s electronic venture, The New York Times, 14 April.
Pollack, A. (1982) Digest’s disappointing source, The New York Times, 26 July.
PR Newswire (1985) American People-Link now operational after several weeks of testing, 7 January.
PR Newswire (1986) American People-Link offers new services to subscribers, 6 January.
PR Newswire (1989) GEnie service cuts prime for 300, 1200, and 2400 baud access to only $18 per hour, 3 April.
PR Newswire (1992) America Online announces international e-mail gateway, 3 June.
Rochet, J. C. and Tirole, J. (2003) Platform competition in two-sided markets, Journal of the European Economics Association, 1(4).
Rochet, J. C. and Tirole, J. (2005) Two-sided markets: an overview. IDEI Working Paper.
Rothfeder, J. and Lewyn, M. (1990) How long will Prodigy be a problem child? The Videotex venture is nationwide at last—but profits are
elusive, Business Week, 10 September.
Rysman, M. (2004) Competition between networks: a study of the market for yellow pages, The Review of Economic Studies, 71.
Saloner, G. and Shepard, A. (1995) Adoption of technologies with network effects: an empirical examination of the adoption of automated
teller machines, RAND Journal of Economics, 20.
Searcher (1993) Prodigy breaks one-fee policy, enhances consumer service, 1 May.
Shannon, L. (1988) Dialing quantum link, The New York Times, 12 January.
Shapiro, C. and Varian, H. (1998) Information Rules: A Strategic Guide to the Network Economy (Boston: Harvard Business School
Press).
Sherman, T. (1990) Consumers gather on America Online, Link-Up, 1 July.
Sigel, E. (1983) The Future of Videotext (Englewood Cliffs, NJ: Prentice Hall).
Silverstein, S. (1990) Prodigy to hike its rates, offer more services, Los Angeles Times, 6 September.
Sproull, L. (2000) Computers in U.S. households since 1977, in: A. Chandler, Jr. & J. Cortada (Eds) A Nation Transformed by Information
(Oxford and New York: Oxford University Press).
The Wall Street Journal (1980) Small firm offers home computer owners range of data features, 30 January.
The Wall Street Journal (1983) Electronic mail beginning to link small computer owners, 27 July.
The Wall Street Journal (1989) IBM–Sears venture launches Videotex in New York area, 18 April.
Webb, J. (1989a) CompuServe purchases, The Source Information Today, 1 July.
Webb, J. (1989b) Quantum unveils online system for PC owners, Link-Up, 1 January.
Welch, N. (1990) Competition moves on-line services to cut prices, enhance performance, MacWeek, 6 November.
Whitaker, B. (1989) The pricing of online, Database Searcher, 1 January.
Youngblood, R. (1986) Turning to Videotex—popularity of online services expanding, United Press International, 6 April.