Basic Microeconomics by Professor R. Larry Reynolds, PhD - HTML preview

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6.2.2 Issues In Property Rights

incentives and to allow others to use intellectual property to extend

knowledge. Culture and knowledge progresses by building on the past:

Creators here and everywhere are always and at all times building upon

the creativity that went before and that surrounds them now. That

building is always and everywhere at least partially done without

permission and without compensating the original creator. No society,

free or controlled, has ever demanded that every use be paid for or that

permission for Walt Disney creativity must always be sought. Instead,

every society has left a certain bit of its culture free for the taking—free

societies more fully than unfree, perhaps, but all societies to some

degree. (Lessig, Free Culture, p 29)

The questions become:

What form should intellectual property rights take if creativity is to be promoted?

How can property rights be structured to provide incentives for creators to

continue to develop new ideas?

A free culture is not a culture without property: it is not a culture in

which artists don’t get paid. A culture without property, or in which

creators can’t get paid, is anarchy, not freedom. Anarchy is not what I

advance here. Instead, the free culture that I defend in this book is a

balance between anarchy and control. A free culture, like a free market,

is filled with property. It is filled with rules of property and contract that

get enforced by the state. But just as a free market is perverted if its

property becomes feudal, so too can a free culture be queered by

extremism in the property rights that define it. (Lessig, Free Culture, p

xvi)

There is a history of just such a property system that is well known in

the Anglo-American tradition. It is called “feudalism.” Under feudalism,

not only was property held by a relatively small number of individuals

and entities. And not only were the rights that ran with that property

powerful and extensive. But the feudal system had a strong interest in

assuring that property holders within that system not weaken feudalism

by liberating people or property within their control to the free market.

Feudalism depended upon maximum control and concentration. It

fought any freedom that might interfere with that control. As Peter

Drahos and John Braithwaite relate, this is precisely the choice we are

now making about intellectual property. We will have an information

society. That much is certain. Our only choice now is whether that

information society will be free or feudal. The trend is toward the feudal.

(Lessig, Free Culture, p 267)

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6.2.2 Issues In Property Rights

As changes in technology pushes us into the age of information, the

question of property rights will become more difficult.

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7 Economic Way of Thinking

7 ECONOMIC WAY OF THINKING

7.1 MARKET EXCHANGE AS AN ALLOCATIVE MECHANISM

Exchange is a voluntary transaction between two or more persons. The

conditions of the transfer are clearly specified. It is a quid pro quo

arrangement. Market exchange is a contract or agreement between the

parties to the transaction. These agreements or contracts may be implied or

explicit, formal or informal. There is no need for one party of the exchange to

know the other. Each party only needs to know the terms of the exchange and

that the other party will fulfill the agreement. There is no need for any

relationship between the parties other than the exchange. In many ways

anonymity of the parties to the exchange may make the exchange less

complicated. Often it is more difficulty to sell your used car to a relative or

friend than to a stranger. In other cases some of the features of reciprocity

and redistribution may facilitate or improve the process of market exchange.

In the diamond trade in New York City or on the farm in Iowa, participants

may know and trust each other to meet the conditions of the market

exchange. This reduces the effort or transaction cost of negotiating the

agreement. In other cases redistribution by an authority may facilitate market

exchange. An individual who fails to comply with the terms of the contract or

exchange may by sued in a system of courts that has the authority to enforce

the exchange.

A major advantage of market exchange as an allocative mechanism is that

once you have found others to contract or exchange with, each actor only

needs information about their own preferences and what they are willing and

able to do. It is not necessary that all information be available in a central

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7.1 Market Exchange as an Allocative Mechanism

location or to a planner. It may be useful to think of a market as a

communication system. The preferences and feasible alternatives available to

each agent or individual are communicated through the market. Relative

prices and quantities are pieces of information that may be used by the actors.

The buyer of a good demonstrates that they prefer the good they purchase to

the money or the other things that an equal amount of money would buy.

Similarly, the seller demonstrates a preference for the money (or what it will

buy) to the good they sold. A good sold for a price of €5 is valued at or is

“worth” at least €5 to the buyer or the buyer would not have purchased the

good. Risk and uncertainty are a part of virtually all human choices. While an

individual may think they will receive some level of benefit or utility from a

purchase, they may fail to do so.

A second advantage attributed to the market is that it is flexible and

provides information and incentive to encourage agents to adapt quickly to

changes in technology, supplies of inputs and environmental conditions. In

order for individuals and society to benefit from market exchange, there are

two fundamental conditions that must hold. One is that exchanges must be

voluntary. The other is that property rights must be “nonattenuated.”

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7.1.1 Voluntary Exchange

7.1.1 VOLUNTARY EXCHANGE

I n neoclassical economics, the objective of an economy is to increase the

welfare or utility of the individuals who make up the society. One of the basic

concepts described in Chapter I Introduction was “Pareto Efficiency or Pareto

Optimality.” To review, remember that a Pareto efficient or optimal solution to

the allocation problem exists when all the alternatives that will improve the

welfare (utility) of a least one person, without making anyone else “worse off”

have be exhausted. Any alternative that will improve the welfare or utility of at

least one person without decreasing the welfare or utility of another person

would increase the welfare of society. This improvement is called a Pareto

improvement and the result is said to be Pareto superior to the initial

alternative.

Generally, a person would enter into a voluntary exchange if they can

improve their welfare or increase their utility. It is assumed that an individual

who voluntarily enters into an exchange would not make himself or herself

“worse off.” Therefore, any voluntary exchange will increase the welfare of one

or both parties and neither will be any worse off.

Jeremy Bentham [1748-1832] attempted to make “utilitarianism” the operative

mechanism to improve the welfare of society. He and many of his followers

attempted to find a way to quantify utility and use it for decision-making.

Bentham proposed a felicific calculus to make be used. However, it is not

possible to make interpersonal comparisons of utility, i.e. if each of 100

persons is given one Euro (€) each there is no reason to believe that they

would all get the same utility. Nor is it possible to assume that the utility or

welfare of the group would be maximized by that distribution.

Consider a distribution where every member of society is given 1 case of

cola and 1 box of tea bags. Since individuals do not have the same preference

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7.1.1 Voluntary Exchange

for cola and tea, there is no guarantee this equal distribution of cola and tea

would maximize the utility or welfare of the group. Information on the

preferences of all individuals is not held in one central place, utility cannot be

measured and summed, so it is impossible to redistribute cola and tea by

eminent domain and insure an increase in total utility. Voluntary exchange is

believed to increase the utility of the members of society. Individuals who

prefer cola to tea should trade (or exchange) cola for tea with those

individuals who prefer tea to cola. The utility of all individuals, whether they

prefer tea or cola would increase (or at least not go down). The parties to the

exchanges must have information about their own preferences and who the

others are that are willing to trade. It would be helpful to have information

about the preferences of others before one offers to trade. If I knew you liked

tea did not like cola, I would offer to trade a small amount of tea for a large

amount of cola. It would be to your advantage that I not know your true

preferences. Information is valuable. You might try to convince me that you

liked cola to get a “better deal.” This is called “haggling or bargaining.” The

negotiations for a contract often include the process of discovering the

preferences and the maximum amount the other person will trade for a good,

i.e. “the best deal.” As trades are negotiated among the members of a society,

information about these transactions becomes valuable. If you wish to buy or

sell a used car you may consult the Kelly Blue Book or Edmunds to find out the

average prices that other exchanges. Providing false information may be

regarded as fraud or deceit. In communities where others often know one

another, one’s reputation is often based on “honest” dealings. In more

complex societies, law and legal suits may be used to prosecute fraud and

deception.

The maximum price the buyer is willing and able to pay for a good is called

the “reservation price of the buyer (RPB)” and the minimum price the seller

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7.1.1 Voluntary Exchange

will accept for the good is the “reservation price of the seller (RPS).” So long

as the RPB is greater than the RPS, a trade can take place. If the RPS is

greater than the RSB, no trade will occur. Neither the buyer nor seller wants

the other party to know their reservation price. Haggling is the process by

which a mutually agreeable price can be determined. The price at which the

exchange will occur will be greater than the RPS and lower than the RPB

(RPS>P>RPB). In the case of a single transaction, the price will be closer to

the reservation price of the seller or buyer with the most information and the

greatest skills in negotiation. The degree to which individuals adhere to a pure

quid pro quo and consequentialist ethic may give individuals an advantage

over individuals who are constrained by a deontological ethic.

Over time an expected pattern of trade emerges. A given amount of cola is

expected to trade for a specific number of tea bags. The ratio at which cola

and tea trade can be called the exchange ratio. The exchange ratio is the price

of one good in terms of another. This exchange ratio is determined by the

preferences of the individuals, the relative amount and distribution of cola and

tea. If it is established that on average, 1 cola trades for 5 tea bags,

individuals who do not like cola will be willing to accept cola on trade because

they know its will trade for tea. If 1 cola (1c) trades for 5 tea bags (5t),

money can be used to facilitate the exchanges. The use of money results in

monetary prices rather than prices in terms of other goods. The monetary

price of cola will be labeled, PC, the price of tea Pt. The relative prices of cola

and tea are established by the exchange ratio. If one cola will trade for 5 tea

bags,

1c = 5t,

if P = $1 implie

s P = $.20

c

t

if P = $1 implies P = $5

t

c

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7.1.1 Voluntary Exchange

In microeconomics it is the relative prices that are important. If the

exchange ratio is 1c = 5t, the “correct” set of prices can be either

P = $1 and P = $.20

c

t

or

P = $5 and P = $1

c

t

Any voluntary exchange reflects the preferences of the parties to the

exchange. If Joan buys a cola for €1, she must prefer the cola to €1 or she would

have kept her money. If John sells Joan a cola for €1, he must prefer the €1 to the cola

or he would have kept the cola. Therefore if Joan voluntarily buys a cola from John (who

voluntarily sells it) they are both “better off” or have increased their utility.

The problem arises as to what is meant by “voluntary.” Some actions, such

as “duress” clearly violate the concept of voluntary. Any contract concluded

under duress is unenforceable in most countries. Contracts or exchanges with

minors are also unenforceable. If Joan holds a gun to John’s head to force him

to sell the cola, that would clearly be duress or coercion and violate the

conditions of voluntary exchange. If the instructor of a class suggests you buy

his or her book, is that coercion? If your mother says, “You go ahead and do

what you want to do but it will break my heart!” Is that coercion? “Voluntary”

exchange is often a matter of degree. Often the only “voluntary” choice open

to an individual in a pure market is to “exit.” The person may choose to

participate or not.

7.1.2 ECONOMIC WAY OF THINKING

E conomic theory provides a “map” or structure to aid in the interpretation

of economic data or information. The nature of the map (economic theory)

determines the nature of the questions asked. Joan Robinson’s [1903-1983]

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7.1.2 Economic Way of Thinking

comment was, “If you don’t ask the right question, you won’t get the right

answer.”

N eoclassical microeconomics is based on the belief that individuals are

rational and that they attempt to optimize.

7.1.2.1 INDIVIDUALS ARE RATIONAL

1. objectives are known

2. all feasible alternatives are known

3. each alternative is evaluated with respect to the objective

7.1.2.2 BENEFIT - COST FORMAT [PARETO EFFICIENCY/POTENTIAL]

M ost of economic theory is based on individuals making “optimal

choices.” Objectives or goals are usually based on the maximization or

minimization of some variable, i.e. the maximization of utility, output or profit

or the minimization of cost per unit.

Benefit/cost analysis is a basic approach that is used. If the benefits

associated with a choice (alternative) exceed the costs incurred with the

choice, there is an increase in net benefits. If the costs exceed the benefits of

a choice, it will not increase net benefits. Notice that it is the cost and benefit

associated with a choice. This requires “marginal analysis.” B/C analysis is a

variation of the Pareto Potential criterion.

7.1.2.3 MARGINAL ANALYSIS

D ecisions in economics are always made at the “margin.” A decision to

change one variable will cause a change in some other related variable. A

change in the price of a good will change the quantity sold, a change in the

quantity sold will change the total revenue collected. The change in total

revenue caused by a change in units sold is called marginal revenue. The

marginal concept is applied to a wide variety of relationships. In principles of

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7.1.2 Economic Way of Thinking

economics these are usually described as a “one unit” change in the variables.

The Greek letter delta, ∆ is used to identify a change calculated by subtraction.

In other cases a derivative (d) or partial derivative (∂) will be used to denote a

change that approaches 0.

The use of marginal is applied to many economic relationships. In fact, the

early period of the development of microeconomics (mid to late 19th century)

was called the “marginalist revolution.” Below are some definitions of several

useful marginal relationships.

1. Marginal Cost (MC)

MC is defined as the change in Total Cost (TC) or variable cost (VC) caused

by a one unit change in the quantity produced, output (Q). MC represents

opportunity cost.

ΔTC

ΔVC

MC =

=

ΔQ

ΔQ

2. Marginal Benefit (MB)

MB is defined as the change in total benefit (TB) caused by a one unit

change in quantity consumed (Q).

ΔTB

MB = ΔQ

3. Marginal Utility (MU)

MU is the change in utility caused by a change in quantity consumed (Q)

ΔTU

MU = ΔQ

4. Marginal Revenue (MR)

MR is the change in Total Revenue (TR) caused by a one unit change in the

quantity sold (Q).

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7.1.2 Economic Way of Thinking

ΔTR

MR = ΔQ

5.

Marginal Product (MP)

The marginal product is the change in output (Q) caused by a change in a

variable input (L or K).

ΔQ

ΔQ

MP =

, MP =

L

ΔL

K

ΔK

7.1.2.4 MARGINAL ANALYSIS AND OBJECTIVES

1. To maximize utility

So long as the MU > MC, consume the next unit. If MU<MC reduce the

level of consumption. Where MU=MC maximum utility is attained.

If there are two or more goods that have a price (or cost), the process of

utility maximization requires that each additional expenditure be

made on the good that has the highest marginal utility. To

maximize utility with several goods that have economic prices,

the “equimarginal principle,” is used.

MU

MU

MU

X =

Y = … =

N

P

P

P

X

Y

N

Subject to B P Q + P Q + . . . + P Q

X

X

Y

Y

N

N

When P = price of good i , B = budget, Q = Quantity of good i

i

i

2. To maximize profit (Π)

So long as the next unit of output can be produced at a cost that is less than it

can be sold for, do it!

When MR >MC, produce

When MR <MC reduce output,

Maximum profits when MR = MC

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7.1.2 Economic Way of Thinking

3. Maximum welfare of buyers and sellers

The market is a social institution that provides information to guide the

allocation process in a society. Buyers should purchase additional

units of a good so long as the MB > P.

The producers (sellers) of a good should continue to produced and sell

more of a good so long as the P > MC.

The welfare of buyers and sellers will be maximized when

MB = P = MC

7.1.2.5 APPENDIX I: SCHOOLS OF ECONOMIC THOUGHT

H uman behavior can be viewed from many different perspectives.

Sociology, political science, psychology, anthropology, history, and economics

are just a few of the basic approaches to the study of the individuals and

society. Within each of these disciplines there are differences in perspectives.

In economics, there are “schools of thought” that have alternative approaches

to the analysis of economic processes. These schools of thought may ask

different questions and use different methods in their attempts to answer

them.

Within microeconomics the mainstream view is “Neoclassical economics”

which is the topic of this outline. Other approaches include, Austrians, “Old”

Institutionalists, “New” Institutionalists, Walrasians, Marxists, Public Choice

theorists, law and economics, Chicago, Keynesian and social economics. Some

of these schools focus on macroeconomics while others are primarily deal with

microeconomic issues. While many of these schools have different approaches,

there is often overlap. It is useful to know a little about some of these

alternative approaches to understand how mainstream economics has

developed and which aspects of Neoclassical economics might be subject to

criticism and how it may be adapted.

George Stigler (1911-1991), described a school of economic thought,

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7.1.2 Economic Way of Thinking

A school within a science is a collection of affiliated scientists who

display a considerably higher degree of agreement up on a particular set

of