# 11.3 Regulating natural monopolies

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By the end of this section, you will be able to:

• Evaluate the appropriate competition policy for a natural monopoly
• Interpret a graph of regulatory choices
• Contrast cost-plus and price cap regulation

Most true monopolies today in the U.S. are regulated, natural monopolies. A natural monopoly poses a difficult challenge for competition policy, because the structure of costs and demand seems to make competition unlikely or costly. A natural monopoly    arises when average costs are declining over the range of production that satisfies market demand. This typically happens when fixed costs are large relative to variable costs. As a result, one firm is able to supply the total quantity demanded in the market at lower cost than two or more firms—so splitting up the natural monopoly would raise the average cost of production and force customers to pay more.

Public utilities, the companies that have traditionally provided water and electrical service across much of the United States, are leading examples of natural monopoly. It would make little sense to argue that a local water company should be broken up into several competing companies, each with its own separate set of pipes and water supplies. Installing four or five identical sets of pipes under a city, one for each water company, so that each household could choose its own water provider, would be terribly costly. The same argument applies to the idea of having many competing companies for delivering electricity to homes, each with its own set of wires. Before the advent of wireless phones, the argument also applied to the idea of many different phone companies, each with its own set of phone wires running through the neighborhood.

## The choices in regulating a natural monopoly

So what then is the appropriate competition policy for a natural monopoly? [link] illustrates the case of natural monopoly, with a market demand curve that cuts through the downward-sloping portion of the average cost curve . Points A, B, C, and F illustrate four of the main choices for regulation. [link] outlines the regulatory choices for dealing with a natural monopoly.

Regulatory choices in dealing with natural monopoly
Quantity Price Total Revenue * Marginal Revenue Total Cost Marginal Cost Average Cost
1 14.7 14.7 - 11.0 - 11.00
2 12.4 24.7 10.0 19.5 8.5 9.75
3 10.6 31.7 7.0 25.5 6.0 8.50
4 9.3 37.2 5.5 31.0 5.5 7.75
5 8.0 40.0 2.8 35.0 4.0 7.00
6 6.5 39.0 –1.0 39.0 4.0 6.50
7 5.0 35.0 –4.0 42.0 3.0 6.00
8 3.5 28.0 –7.0 45.5 3.5 5.70
9 2.0 18.0 –10.0 49.5 4.0 5.5

what is demand
demand is the quantity of a good that consumers are willing and able to purchase at various prices during a given period of time.
Modest
what is opportunity cost
what is gini coefficient?
Never heard of that!!!!
Abdulrahmon
ive heard about it Actually i know it..
Shamamet
In that case, you have to help us.
Patrick
Another name for Absolute cost advantage
what is the difference between demand and supply
what is the national income
oils and resources
Peter
it is the sum of all incomes earned by factors of production usually a year
C-Stixxs
What's current account?
Demand refers to goods and services that the buyer is willing and able to buy at a price over a period of time
Che
Can it be possible to have two level of comparative advantage in a country ?
.no.its not possible
Asanda
Why ?
Louise
I think no possible
No
Nwanne
No resources are scare for a country to have a comparative advantage and it discourages external trade
C-Stixxs
each country are meant to Specialize on 1 production activities
C-Stixxs
why do oligopoly increase on the elastic segment of the demand curve
what is all about production possibility curve
help me about the assumption of possibility curve
Nice
-The quantity and quality of economic resources are fixed. -only two types of goods can be produce out of this resources (that is,producer and consumer goods). -Resources are fully utilised. -The resources are mobile. -The state of technology is constant.
Louise
What is utility
it is the satisfaction derived from d consumption of goods and services
C-Stixxs
what is opportunity cost
Aboubakar
what is the meaning of money and inflation
Money can be define as anything acceptable as a medium of exchange and mean of payment
Cynthia
inflation is when everything seemed to cost so much less
Nwanne
Inflation is d persistent rise in level of goods and services in a country
C-Stixxs
Inflation is the persistent increase in d general price level of goods n services
C-Stixxs
what is a bar chart
what's economic
Economics can be define as a study of how human beings make decisions in the face of scarcity it can also be define as using one wealth to make more wealth
Cynthia
Or in Nigerian way Economics is a science (social science) which studies human behavior as a relationship between Ends and Scarce which have alternative uses
Cynthia
Economics is the study of how human make decision in the face of scarcity
Nwanne
what is the meaning of imperfect market structure
the theroy of demand
Tinuke