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[quote user="MichaelSol"][quote user="Datafever"] So, futuremodal, what I hear you saying is that there is really very little in the way of hard studies done on triopolies vs duopolies.  [/quote]There are tons of studies. Here's a few:<a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00384038/ap030185/03a00200/0?currentResult=00384038%2bap030185%2b03a00200%2b2%2cB8&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D1%26Query%3Dtriopoly">Duopoly with Differentiated Products and Entry Barriers</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Kofi%20O.%20Nti;%20Martin%20Shubik%22&hp=25&si=1">Kofi O. Nti; Martin Shubik</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00384038">Southern Economic Journal</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00384038/ap030185">Vol. 48, No. 1</a> (Jul., 1981), pp. 179-186 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00251909/di012888/01p03036/0?currentResult=00251909%2bdi012888%2b01p03036%2b0%2c5F5701&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D1%26Query%3Dtriopoly">Product Assortment in a Triopoly</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Steven%20M.%20Shugan%22&hp=25&si=1">Steven M. Shugan</a> <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00251909">Management Science</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00251909/di012888">Vol. 35, No. 3</a> (Mar., 1989), pp. 304-320 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00029092/ap040154/04a00620/0?currentResult=00029092%2bap040154%2b04a00620%2b0%2cFB&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D1%26Query%3Dtriopoly">The Elimination of the Canadian and Australian Wheat Boards: A Move from Triopoly to Perfect Competition in the World Wheat Market</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Gregory%20William%20DeVos%22&hp=25&si=1">Gregory William DeVos</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00029092">American Journal of Agricultural Economics</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00029092/ap040154">Vol. 79, No. 5, Proceedings Issue</a> (Dec., 1997), pp. 1742-1748 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00084085/ap010019/01a00080/0?currentResult=00084085%2bap010019%2b01a00080%2b5%2cC006&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D1%26Query%3Dtriopoly">Spatial Competition Revisited</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22B.%20Curtis%20Eaton%22&hp=25&si=1">B. Curtis Eaton</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00084085">The Canadian Journal of Economics / Revue canadienne d'Economique</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00084085/ap010019">Vol. 5, No. 2</a> (May, 1972), pp. 268-278 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/01436570/di007853/00p0725j/0?currentResult=01436570%2bdi007853%2b00p0725j%2b1%2c04&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D1%26Query%3Dtriopoly">Horizontal Shareholding Interlocks</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22David%20Flath%22&hp=25&si=1">David Flath</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/01436570">Managerial and Decision Economics</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/01436570/di007853">Vol. 13, No. 1</a> (Jan., 1992), pp. 75-77 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/87566222/ap030023/03a00010/0?currentResult=87566222%2bap030023%2b03a00010%2b5%2cC012&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D26%26Query%3Dtriopoly">Monopolization by Sequential Acquisition</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Morton%20I.%20Kamien;%20Israel%20Zang%22&hp=25&si=1">Morton I. Kamien; Israel Zang</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/87566222">Journal of Law, Economics, & Organization</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/87566222/ap030023">Vol. 9, No. 2</a> (Oct., 1993), pp. 205-229 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00384038/ap030238/03a00010/0?currentResult=00384038%2bap030238%2b03a00010%2b9%2c002488&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D26%26Query%3Dtriopoly">Economies of Scale, Natural Monopoly, and Imperfect Competition in an Experimental Market</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Charles%20R.%20Plott;%20Alexandre%20Borges%20Sugiyama;%20Gilad%20Elbaz%22&hp=25&si=1">Charles R. Plott; Alexandre Borges Sugiyama; Gilad Elbaz</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00384038">Southern Economic Journal</a>,  <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00384038/ap030238">Vol. 61, No. 2</a> (Oct., 1994), pp. 261-287 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00028282/di950400/95p01327/0?currentResult=00028282%2bdi950400%2b95p01327%2b8%2c0002&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D26%26Query%3Dtriopoly">Democracy and Duopoly: A Comparison of Analytical Models</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22James%20M.%20Buchanan%22&hp=25&si=1">James M. Buchanan</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00028282">The American Economic Review</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00028282/di950400">Vol. 58, No. 2, Papers and Proceedings of the Eightieth Annual Meeting of the American Economic Association</a> (May, 1968), pp. 322-331 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00206598/di008396/00p0212g/0?currentResult=00206598%2bdi008396%2b00p0212g%2b5%2c40002001&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D26%26Query%3Dtriopoly">Localized Competition, Multimarket Operation, and Collusive Behavior</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Frank%20Verboven%22&hp=25&si=1">Frank Verboven</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00206598">International Economic Review</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00206598/di008396">Vol. 39, No. 2</a> (May, 1998), pp. 371-398 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00028282/di971052/97p01502/0?currentResult=00028282%2bdi971052%2b97p01502%2b0%2c02&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D26%26Query%3Dtriopoly">Increasing the Profits of a Subset of Firms in Oligopoly Models with Strategic Substitutes</a>, G<a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Gerard%20Gaudet;%20Stephen%20W.%20Salant%22&hp=25&si=1">erard Gaudet; Stephen W. Salant</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00028282">The American Economic Review</a>,  <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00028282/di971052">Vol. 81, No. 3</a> (Jun., 1991), pp. 658-665 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00237639/sp040194/04x3453u/0?currentResult=00237639%2bsp040194%2b04x3453u%2b8%2c0002&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D26%26Query%3Dtriopoly">Gas and Electricity in Britain: A Study in Duopoly</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22F.%20R.%20Jervis%22&hp=25&si=1">F. R. Jervis</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00237639">Land Economics</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00237639/sp040194">Vol. 24, No. 1</a> (Feb., 1948), pp. 31-39 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00223808/di971070/97p02994/0?currentResult=00223808%2bdi971070%2b97p02994%2b20%2c00002080&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D51%26Query%3Dtriopoly">Entry and Competition in Concentrated Markets</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Timothy%20F.%20Bresnahan;%20Peter%20C.%20Reiss%22&hp=25&si=1">Timothy F. Bresnahan; Peter C. Reiss</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00223808">The Journal of Political Economy</a>,  <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00223808/di971070">Vol. 99, No. 5</a> (Oct., 1991), pp. 977-1009 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00335533/di971077/97p0011e/0?currentResult=00335533%2bdi971077%2b97p0011e%2b6%2c8004&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D51%26Query%3Dtriopoly">The Limits of Monopolization Through Acquisition</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Morton%20I.%20Kamien;%20Israel%20Zang%22&hp=25&si=1">Morton I. Kamien; Israel Zang</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00335533">The Quarterly Journal of Economics</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00335533/di971077">Vol. 105, No. 2</a> (May, 1990), pp. 465-499 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00335533/di951792/95p0005w/0?currentResult=00335533%2bdi951792%2b95p0005w%2b3%2c10&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D51%26Query%3Dtriopoly">Collusion in Oligopoly: An Experiment on the Effect of Numbers and Information</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22F.%20T.%20Dolbear,;%20L.%20B.%20Lave;%20G.%20Bowman;%20A.%20Lieberman;%20E.%20Prescott;%20F.%20Rueter;%20R.%20Sherman%22&hp=25&si=1">F. T. Dolbear,; L. B. Lave; G. Bowman; A. Lieberman; E. Prescott; F. Rueter; R. Sherman</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00335533">The Quarterly Journal of Economics</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00335533/di951792">Vol. 82, No. 2</a> (May, 1968), pp. 240-259 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00028282/di950409/95p0345p/0?currentResult=00028282%2bdi950409%2b95p0345p%2b8%2c0002&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D51%26Query%3Dtriopoly">Implications of Dynamic Monopoly Behavior</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Frank%20C.%20Jen;%20Lawrence%20Southwick,%20Jr.%22&hp=25&si=1">Frank C. Jen; Lawrence Southwick, Jr.</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00028282">The American Economic Review</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00028282/di950409">Vol. 59, No. 1</a> (1969), pp. 149-158 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00130427/di009974/00p0295w/0?currentResult=00130427%2bdi009974%2b00p0295w%2b1%2c04&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D51%26Query%3Dtriopoly">A Dissenting View of Duopoly and Spatial Competition</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Nicos%20E.%20Devletoglou%22&hp=25&si=1">Nicos E. Devletoglou</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00130427">Economica</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00130427/di009974">New Series, Vol. 32, No. 126</a> (May, 1965), pp. 140-160 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00220485/ap040059/04a00050/0?currentResult=00220485%2bap040059%2b04a00050%2b12%2c0020&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D76%26Query%3Dtriopoly">Efficiency, Corporate Power, and the Bigness Complex</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Walter%20Adams;%20James%20W.%20Brock%22&hp=25&si=1">Walter Adams; James W. Brock</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00220485">The Journal of Economic Education</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00220485/ap040059">Vol. 21, No. 1</a> (Winter, 1990), pp. 30-50 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00335533/di951794/95p0273f/0?currentResult=00335533%2bdi951794%2b95p0273f%2b2%2c08&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D76%26Query%3Dtriopoly">Economic Theory and the Meaning of Competition</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Paul%20J.%20McNulty%22&hp=25&si=1">Paul J. McNulty</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00335533">The Quarterly Journal of Economics</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00335533/di951794">Vol. 82, No. 4</a> (Nov., 1968), pp. 639-656 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00222186/ap020060/02a00030/0?currentResult=00222186%2bap020060%2b02a00030%2b24%2c00000002&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D76%26Query%3Dtriopoly">Railroad Deregulation, Innovation, and Competition: Effects of the Staggers Act on Grain Transportation</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22James%20M.%20Mac%20Donald%22&hp=25&si=1">James M. Mac Donald</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00222186">Journal of Law and Economics</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00222186/ap020060">Vol. 32, No. 1</a> (Apr., 1989), pp. 63-95 <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/view/00346527/di990695/99p0190d/0?currentResult=00346527%2bdi990695%2b99p0190d%2b1%2c04&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FBasicResults%3Fhp%3D25%26si%3D76%26Query%3Dtriopoly">Entry in Monopoly Markets</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/search/BasicResults?Search=Search&Query=aa:%22Timothy%20F.%20Bresnahan;%20Peter%20C.%20Reiss%22&hp=25&si=1">Timothy F. Bresnahan; Peter C. Reiss</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00346527">The Review of Economic Studies</a>, <a href="http://www.jstor.org.weblib.lib.umt.edu:2048/browse/00346527/di990695">Vol. 57, No. 4</a> (Oct., 1990), pp. 531-553 [/quote]So does anyone here have a University of Montana student account?[sigh]
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