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 Originally Posted by OngBonga
Sorry been busy preparing to move house, plus work.
The second question, I'll answer that quickly... no.
The first one... what makes a natural monopoly? In my opinion (I'm not pretending to be an economist) it's a service that is both essential and comes from a single source, where the consumer has very little (not necessarily zero) choice but to use.
A natural monopoly is a business model where direct competition doesn't exist, and profit is essentially guaranteed by the need of the people to use the service.
I understand your point about bottled water and tap water being in competition with one another, but it's indirect and the tap water company needs to be performing particularly badly before a significant shift of custom moves to bottled water. So ok tap water companies can't literally charge what they like, but they can still overcharge while being "competetive" enough so people don't start bathing with bottled water.
So tap water is a natural monopoly, at least I believe so. People need it, and there is only one source.
Energy is another. I know savy seems to think that you can literally choose to use a different power plant, but you don't phone the plant and ask them for quotes. The "competition" here is an illusion... you're buying the same power from different middle men who charge different prices. What's the need for this competition? So the consumer has to figure out which one is taking the piss the least?
The only real competition enegery companies have is people investing in renewables, but for most people it's prohibitively expensive and therefore the energy companies are providing an essential service that the consumer has very little real choice on. Another natural monopoly.
You can't not make these things a monopoly. That's why they're natural.
Thanks for the response. I'll think about that.
What economists call natural monopoly derives from two elements: (1) fixed costs, and (2) economies of scale.
(1) is that the higher the fixed costs, the higher the natural monopoly. Example: if the fixed costs to start a business are $10, just about anybody can do it and the monopoly level is low, so to speak. If the fixed costs to start are $10M, a significantly smaller number of people can do it; therefore the market has a higher monopoly level, roughly speaking.
(2) is gains to efficiency made by scale increases. This is like how if you are the sole worker of your business, you do everything, and on average you might be able to produce $20/hr while costing $10/hr. But if you have ten workers, you each specialize at your comparative advantages, and could produce greater value at lower cost than you by yourself can. Equipment also factors in, which is also a fixed cost element.
Also, most markets are considered monopolistic. Monopolistic competition to be exact. What makes something monopolistic is having product differentiation. Economists don't view "need" or the like into what makes something monopolistic or natural monopoly; that is instead mainly captured by elasticity of demand, which means that for some things with high inelasticity of demand, like water might be (I don't know if it is), consumers will put up with higher price changes associated with lower quantity changes (the demand curve is very steep). For things with high elasticity, like a type of soda in a competitive soda market probably is, consumer response to price increases is to demand significantly less of the product.
Neat to note on (1) from above, this is why I said earlier how having more rich people and rich companies is an effective measure against natural monopolies. That makes higher fixed costs less costly to a larger number of potential competitors. On (2) from above, economies of scale creates an incumbent disadvantage to the firm too. Large structures can be less capable of adapting and more slow moving. One area we see an incumbent disadvantage is in Walmart not being able to compete with Amazon with internet/delivery services since any success for Walmart in that realm would detract from Walmart's bread and butter brick and mortar model. In this case, Walmart suffers from its own success. In perhaps an ironic way, monopolistic elements are necessary for growth of quality of goods and services in the first place. This is because to stand out to the consumer and for the producer to profit, product differentiation is key.
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