Consideremos aqui o Facebook, a Apple como exemplo de monopólios. Basta atentarem no cabeçalho deste blog para lerem "monopólios informais":
"there is a huge incentive to attack the luxurious market of an existing monopolist — and innumerable companies do so. The monopolist must understand that these insurgents can’t help themselves: the opportunity is too attractive.
But taking on the monopolist at the heart of its business is rarely their approach. The dominant approach is to chip away at the edges of the monopoly. Think of the monopolist’s business as a circular disk. At the center is the perfect customer who thinks the monopolist’s offer is perfect. As you move away from the center, the offering is ever less perfect to those customers. And that is where insurgents attack: not at the center but at the fringes. And they win fringe customers.
When MCI and Sprint attacked AT&T’s monopoly, they didn’t attack the core of middle-American residential customers. They went after large businesses, who were being vastly overcharged relative to cost to serve, in order for AT&T to subsidize undercharged rural customers. Facebook’s insurgents aren’t attacking the core of its business. They are picking off customers who are hyper-sensitive to privacy issues (MT Social) or hyper-sensitive to ads (MeWe) or want to get credit for their participation (Minds) or they are searching for ideas/inspiration (Pinterest). If successful, that insurgent becomes the new monopolist for that niche — some of which are too small to be profitable, others not.
But the result is that the original monopolist’s territory becomes ever smaller as it is dynamically segmented around the edges. Ironically, the same thing happens in due course to the new entrants’ monopolies. So, dynamically over time, markets keep segmenting and segmenting into shrinking monopolies. It is inexorable."
Trechos retirados de "The Two Rules that Monopolists Ignore at their Peril"