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The article claims it isn't economic to transport salt >150 miles over land.

So at the very least, you have to buy a salt mine in the right location. Maybe even start a new one, if the existing monopolists own them all.

Not exactly a low barrier to entry IMHO :)



Well, they should focus on reducing barriers to entry.

> The article claims it isn't economic to transport salt >150 miles over land.

The higher the excess profits, the bigger that radius gets.




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