  One piece of Libertarian/Conservative dogma that never made sense to me was the idea that monopolies cannot exist without government intervention (usually excluding property rights). This is patently false. If you ever find yourself living in a Libertarian utopia and want to form a monopoly, just take the following steps: 1) Find a relatively scarce natural resource (easy because natural resources are always scarce) 2) Buy the worlds supply of that natural resource (this is a bit harder, but still doable) 3) Inform the market that you now have a monopoly on that resource and they will be paying whatever price you decide to charge. Of course, I'm sure that there are other, more complicated, ways to create a monopoly in a libertarian society, but this should be enough to disprove any claims that government regulation is necessary for a monopoly to exist. 
