Answer:
technological monopoly
a firm or individual have discovered a new manufacturing technique or created something entirely new Ex: Segway
geographic monopoly
small town, because of its location no other business offers competition Ex: Girdwood gas station
I would say technological monopolies, though answers will vary because of perspective. If we look at Tesla, they create new and innovative products that are without a doubt beyond the excesses that some other standard car companies (hence, electrical power). As technology grows over the years, having control over a new type of energy or power (or tech), will have a significant influence over the people, especially considering that no other company has yet to provide it.
Explanation: