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Unnatural Monopoly: Critical Moments in the Development of the ...
Obviously, with such high entry costs, new firms can find it difficult to gain a . When Alexander Graham Bell patented the telephone on March 7, 1876, few people . Unfortunately for Western Union, the telephone turned out to be anything but a . of serious wireless competition rising up to meet the Bell challenge in the first .
http://www.cato.org/pubs/journal/cjv14n2-6.html