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SELECTED ISSUES IN MICROECONOMICS (CONTINUED……………)

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Lesson 7.2
SELECTED ISSUES IN MICROECONOMICS (CONTINUED...............)
Supply and Demand Curve for Labor:
The labour supply curve may bend backwards above a certain wage rate as the income effect
of higher income dominates the substitution effect of higher wages.
The wage rate is the marginal cost of labour to the firm and is directly proportional to the hours
worked.
The demand curve for labour can be derived from the intersection of the wage rate lines
(horizontal parallel lines) and the marginal revenue product of labour (a downward sloping
concave function) given by MRPL = MPPL x MRi, where subscript "L" stands for labour and
subscript "i" stands for the good which the labourer helps produce.
The Value of Marginal Product of Labor (VMPL):
The value of marginal productivity of labor can be represented by the following formula:
The value of marginal product of labour (VMPL) = MPPL x Pi.
It is equal to MRPL when P = MC (as in perfect competition), but otherwise VMPL > MRPL.
One important difference between labour and land, capital is that the latter two can be
purchased but labour can only be rented.
A rent is a periodic payment as a reward for hiring the factor of production for that period,
where the purchase price of capital is the "value" of owning that capital for its entire life.
The Net Present Value (NPV) and Discounting:
Decisions about purchasing capital or land are often made on the basis of the net present
value (NPV) associated with the decision. The NPV of an asset is the discounted value of the
net returns that the asset generates over a period of time plus the discounted value of its
disposal value at the end of the period minus the initial purchase cost.
Discounting is the process of converting a stream of future incomes and expenses into a
present value. The discount rate is the rate at which the future incomes are discounted.
THE ECONOMICS OF INFORMATION PRODUCTS
The economics of information products or (internet products) involves studying how economic
principles apply to the production, distribution and consumption of these products.
The internet has reduced the marginal cost of distributing information to zero, as once a
product is launched on the web, any number of potential customers can access/view it without
any additional cost to the producer of the information.
Since the average cost of information product is falling over the entire range of output the
market structure most consistent with such a product is (natural) monopoly.
Experience goods are goods that people must get a flavor of before they can consider buying
them.
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END OF UNIT 7 - EXERCISES
WELFARE ECONOMICS AND EXTERNALITIES
If monopoly power existed in an industry, would production be above or below the
socially efficient level (assuming no externalities)? Which would be greater, MSB or P?
A firm with monopoly power produces where MR = MC. But this is below the socially efficient
level of output which obtains where P = MC.
Assuming no externalities, and perfect competition show that social efficiency is
achieved in the factor markets, where: MSBf = MRPf = Pf = MDUf = MSCf (where MRP is
the marginal product of a factor, MDU is the marginal disutility of supplying it and f is
any factor).
The MRPf is the marginal benefit to the employer from employing a factor. Profits will be
maximised where MRP = Pf. The MDUf is the marginal cost to the factor supplier from
supplying a factor. The factor supplier's `surplus' will be maximised where Pf = MDUf. Under
perfect competition, since MRPf = Pf for each producer, and Pf = MDUf for each factor supplier,
then, since the market price for the factor (Pf) is the same for all firms and factor suppliers,
then MRPf = MDUf for all firms and factor suppliers. In the absence of externalities in the factor
market, MSBf = MRPf, and MDUf = MSCf. Thus: MSBf = MRPf = Pf = MDUf = MSCf , i.e. MSBf
= MSCf
Note: The concepts in this question will not be tested in the exam.
Trace through the effects in both factor and goods markets of the following:
a) An increase in the productivity of a particular type of labour.
b) An increase in the supply of a particular factor.
The following charts illustrate the effects:
(a)
1. Labour demand
MRPl(i.e. MSBl)
employment of labour
W
MRPl > W
2. Labour supply
WW > MDUl (i.e. W > MSCl) supply of labour
MDUl
(movement up along MDUl and hence MSCl curve) .
These adjustments would continue until MSBl = MSCl.
3. Producer supply
MRPl
MC
production
P
P > MC (i.e. P > MSC)
4. Consumer demand
PMU > P consumptionMU(movement down along MU and
hence MSB curve)
These adjustments would continue until MSB = MSC (in goods markets).
(b)
1. Factor supply
Sf(i.e. MSCf) Sf > Df
Pf
2. Factor demand
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PfMRPf > Pf employment of factor(movement down along MRPf
and hence MSBf curve)
These adjustments would continue until MSBf = MSCf.
3. Producer supply
Pf
MC
production
P
P > MC (i.e. P > MSC)
4. Consumer demand
PMU > P consumptionMU(movement down along MU and
hence MSB curve)
These adjustments would continue until MSB = MSC (in goods markets).
Note: The concepts in this question will not be tested in the exam.
If MUX/MUY were greater than PX/PY, how would consumers behave? What would bring
consumption back to equilibrium where MUX/MUY = PX/PY?
Consumers would buy relatively more of X and relatively less of Y.  But as they did this,
MUX/MUY would fall (because of diminishing marginal utility) until MUX/MUY = PX/PY.
Note: The concepts in this question will not be tested in the exam.
If MCX/MCY were greater than PX/PY how would firms behave?
What would bring
production back into equilibrium where MCX/MCY = PX/PY?
Firms would produce relatively more of good Y and relatively less of good X. But as they did
this, MCX/MCY would fall (because of the law of diminishing returns and hence increasing
marginal costs as production increases) until MCX/MCY = PX/PY.
What are marginal external costs?
The different between marginal social cost and marginal private costs is marginal external cost.
In other words, it is the marginal cost of the externality to society.
Is it likely that the MSB curve will be parallel to the MU curve? Explain your reasoning.
No. It is likely that the marginal external costs of consumption will increase as more is
consumed, and thus the curves will get further apart (making the MSB curve steeper than the
MU = MB curve). For example, the marginal pollution costs of cars gets progressively greater as
more and more cars come onto the roads and the environment becomes less and less able to
absorb the additional quantities of pollutants.
Give other examples of each of the four types of externality.
a) External costs of production (MSC > MC): The pollution of rivers and streams by slurry
and nitrate run-off from farms; road congestion near a factory.
b) External benefits of production (MSC < MC): Beneficial spin-offs from the development of
new products (for example, the various space programmes in the USA, the USSR and
Europe have contributed to advances in medicine, materials technology, etc.); where the
opening of a new environmentally friendly factory results in less output from factories that
pollute.
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c) External costs of consumption (MSB < MB): The effect of CFC aerosols on the ozone
layer; the unpleasant sight of kites stuck in trees and wires.
d) External benefits of consumption (MSB > MB): People decorating the outside of their
houses or making their gardens look attractive benefits neighbours and passers-by; car
owners getting their cars properly serviced so as to reduce the smoke emitted and the
pollution associated with it.
Some roads could be regarded as a public good, but some could be provided by the
market. Which types of road could be provided by the market? Why? Would it be a
good idea?
Roads where there are relatively few access points and where therefore it would be practical to
charge tolls. Charges could be regarded as a useful means of restricting use of the roads in
question, or, by charging more at peak times, of encouraging people to travel at off-peak times.
Such as system, however, could be regarded as unfair by those using the toll roads, and might
merely divert congestion onto the non-toll roads.
Which of the following have the property of non-rivalry: (a) a can of drink; (b) public
transport; (c) a commercial radio broadcast; (d) the sight of flowers in a public park?
(a) No. (b) No (passengers take up seats). (c) Yes. (d) Yes (unless I get in your way!).
Give some other examples of public goods.  Does the provider of these goods (the
government or local authority) charge for their use? If so is the method of charging based
on the amount of the good that people use? Is it a good method of charging? Could you
suggest a better method?
Two examples are: national defence; urban roads.  In both cases the user is not directly
charged. The funding comes from taxation. In the case of roads, part of the funding comes from
road users generally (in the form of taxes on petrol and road fund licences) and part from
general or local taxation. Only in the case of petrol tax is the charging related to the amount that
people use the public good. It encourages people to use the roads less, and thus takes into
account the marginal cost (i.e. repairs and maintenance) of road provision.  In this sense,
however, roads are not a pure public good because using them does create a small amount of
wear and tear on them (although a significant portion of road maintenance costs are due simply
to deterioration through time).
If the marginal cost of provision is zero (as is the case with a pure public good) then charging
people according to how much they use it will not cause an efficient allocation of resources: with
a zero marginal cost, the price should be zero. Charging people according to how much they
use it, however, could be regarded as fair according to the benefit principle ­ but not according
to the principle of vertical equity.
Name some goods or services provided by the government or local authorities that are
not public goods.
Education, health, libraries, parks. Only limited people can use these facilities.
If health care is provided free, the demand is likely to be high. How is this high demand
dealt with? Is this a good way of dealing with it?
It is dealt with by a system of queuing. Emergency cases are usually dealt with immediately, or
at least very quickly, but non-emergency cases may have to wait weeks, months or even years
for treatment.
Many people would argue that for reasons of equity, and the special nature of health, it is better
to solve the problem of waiting lists by diverting more resources into health care, rather than by
using a system of charging people.  Except where there are initially idle resources or
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inefficiencies, this approach will result in a lower provision of other publicly provided goods or
services, or higher taxes.
How would you attempt to value time that you yourself save (a) getting to work; (b) going
on holiday; (c) going out in the evening?
The approach is to ask what the opportunity cost to you of that time is. What else could you
have done with the time and what, as a result, would you have been prepared to pay to save
time? Thus in the case of (b), if you have a long holiday and the travel is seen as an enjoyable
part of it, then there may be no time cost to you, or it may even be seen as a benefit; whereas if
you only have a week off work and want to get to the sun as quickly as possible, then you will
want to minimise travel time and thus may be prepared to pay quite a lot more to fly rather than
go over land.
Imagine that a public project yields a return of 13 per cent (after taking into account all
social costs and benefits), whereas a 15 per cent private return could typically be earned
in the private sector. How would you justify diverting resources from the private sector
to this project?
If it could be argued that this particular project yielded longer-term benefits, and that the market
rate of discount is too high in the sense that it gives undue weight to present benefits and costs
over future benefits and costs than is socially desirable, then there would be some justification.
The justification for a lower social rate of discount is that the market only reflects the wishes of
the current generation, whereas governments ought to take a longer-term perspective.
An alternative justification may be in terms of the distribution of costs and benefits. If the project
was an effective means of targeting help to the poor (say a new hospital in an area where there
is a lot of poverty) then the government may want to apply a lower rate of discount.
Assume that a project has an initial construction cost of Rs10 000, takes a year to come
into operation and then has a life of 3 years. Assume that it yields Rs5000 per year in
each of these 3 years. Is the NPV positive at (a) a 10 per cent discount rate; (b) a 15 per
cent discount rate?
(a) NPV = ­Rs.10 000 + Rs.5000/1.1 + Rs.5000/1.21 + Rs.5000/1.331
= ­Rs.10 000 + Rs.4545 + Rs.4132 + Rs.3757
= +Rs.2434
The NPV is therefore positive at a 10 per cent discount rate.
(b) NPV = ­Rs.10 000 + Rs.5000/1.15 + Rs.5000/1.3225 + Rs.5000/1.5209
= ­Rs.10 000 + Rs.4348 + Rs.3781 + Rs.3288
= +Rs.1417
The NPV is therefore still positive at a 15 per cent discount rate.
Why is this type of cost­benefit analysis (CBA) simpler to conduct that ones assessing
the desirability of a new road or airport?
There are specific scenarios, with very precise assumptions. The main purpose was not to
demonstrate the positive NPV (which depends on the assumptions about the value of the
environmental benefits of reducing emissions), but to compare the relative advantages of the
alternative scenarios.
With a CBA of a new road or airport, there have to be assumptions, not only about the
environmental impact, but about the value of time saved or additional time incurred by
travellers, about the value of lives saved or lost and about the costs to local people disturbed
by the road or airport. Thus the measurement of externalities is likely to be more problematic
than in the case of lowering the sulphur content of road fuel.
How do merit goods differ from public goods?
They could be provided by the market (albeit with too little consumed). The problem of non-
excludability does not apply.
Note: The concepts in this question will not be tested in the exam.
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Summarize the economic policies of the major political parties. (If it is near an election
you could refer to their manifestos.) How far can an economist go in assessing these
policies?
You will need to look at the current policies.
Economists in their role as economists cannot challenge fundamental normative issues ­ such
as whether it is desirable to have a much more substantial redistribution of income from the
rich to the poor. They can, however, examine whether the factual claims of the parties are
correct, and whether the policies they advocate will bring the effects they claim.
Note: The concepts in this question will not be tested in the exam.
Give some examples of how correcting problems in one part of the economy will create
problems elsewhere.
Two examples are:
·  A local authority reduces street parking in the centre of a town in order to reduce
congestion on the streets, but succeeds in encouraging commuters and shoppers to
park outside the town centre in residential areas, thus reducing the quality of life for
those living in those areas.
·  The government taxes the consumption of electricity in order to encourage people to
become more fuel efficient and thus to reduce power station emissions. Some people
respond by switching to burning coal, with the result that emissions from this source
increase.
THE MARKET FOR FACTORS OF PRODUCTION
Why might the labour supply curve be backward bending?
Because after a point the income effect of the higher wage dominates the substitution effect.
Note that when we talk of substitution, it is substitution between work and leisure. The labourer
must decide how to utilize his time, i.e. how much hours to spend working and how much to
spend relaxing. If the wage rate (which also represents the worker's income) becomes very high,
given that leisure is a normal good, the demand for relaxation increases. This is the income
effect and it is positive for leisure and negative for hours worked. However, as the wage rate
increases, the opportunity cost of relaxing increases and prompts the worker to work more. This
is the substitution effect and is negative for leisure and positive for hours worked. The labour
supply curve becomes backward bending when the income effect of higher wages dominates
the substitution effect.
What is the distinction between MRPL and VMPL? When is this distinction important?
Labour's marginal revenue product (MRPL) = MR * MPPL
Labour's value of marginal product (VMPL) = P * MPPL
The two terms mean the same when the product market is perfectly competitive, because then:
MR = MC = P. However, when the product market is not perfectly competitive, for e.g., if it is a
monopoly, then P > MR at the profit maximizing output, and therefore VMPL > MRPL. The
important implication of this is that a monopolist would pay labourers less than the "value of the
output that their labour helps produce", i.e. the VMPL. To that effect this can be viewed as
exploitation of labour.
Do any of the following contradict marginal productivity theory:
a) Nationally negotiated wage rates;
b) Discrimination;
Even if marginal productivity theory were not relevant in these cases, the theory would still be
accurate in the sense that if firms wanted to maximise profits then they should employ workers
to the point where MCL = MRPL.
But do any of the above four cases necessarily contradict marginal productivity theory?
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a) No, not necessarily. Firms may find it convenient (in terms of the costs of negotiating
and the avoidance of disputes) to pay nationally agreed wage rates. They then could
employ workers up to the point where their MRP was equal to this wage rate (which,
given that the firm was a `wage taker' would be equal to the MCL).
b) Yes. Discrimination would lead to firms employing those workers against whom they
were discriminating below the level where their MRP was equal to their MCL.
Which of the following are stocks and which are flows?
a) Unemployment.
b) Redundancies (job lay-offs).
c) Profits.
d) A firm's stock market valuation (share price).
e) The value of property after a period of inflation.
Stocks: (a), (d) and (e). They are measurements at a point in time.
Flows: (b) and (c). They are measurements over a period of time. (Note that (e) would only be
a flow if it were measuring the rise in the value of property over a period of time.)
What is the present value of a machine that lasts three years, earns Rs.100m in year 1,
Rs.200m in year 2 and Rs.200m in year 3, and then has a scrap value of Rs.100m?
Assume that the rate of discount is 5 per cent. If the machine costs Rs.500m, is the
investment worthwhile? Would it be worthwhile if the rate of discount were 10 per cent?
Using the formula given in the lectures:
PV = Rs.100/1.05 + Rs.200/(1.05)˛ + Rs.300/(1.05)ł
= Rs.95.24 + Rs.181.41 + Rs.259.15
= Rs.535.80
Thus the investment is profitable at a discount rate of 5 per cent given that the machine costs
Rs.500.
If the rate of discount is 10 per cent, then the present value this time is given by:
PV = Rs.100/1.1 + Rs.200/(1.1)˛ + Rs.300/(1.1)ł
= Rs.90.91 + Rs.165.29 + Rs.225.40
= Rs.481.59
With a 10 per cent discount rate, therefore, the investment would not be profitable.
What market price would a piece of land sell for if it earned Rs.10,000 rent per year, and if
the rate of interest were 5 per cent?
According to the formula, market price of land = [annual rental value (in Rs.) / interest rate (in %
p.a.)]
Rs.10,000/0.05 = Rs.200,000.
What does this tell us about the relationship between the price of an asset (like land) and
the rate of interest?
The higher the rate of interest, the lower the market price of the asset. The asset would have to
be cheaper (i.e. yield a higher rate of return) to persuade the purchaser to sacrifice the
alternative of earning the market rate of interest.
INFORMATION ECONOMICS
There are many dimensions to information economics. The first of these was touched upon in
the lectures on background on demand under "demand under uncertainty." We touched
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concepts like moral hazard and adverse selection. Below we touch upon some of the remaining
aspects that were not covered there. PART A contains questions related to the economics of
information products on the web that were covered in the lecture, while PART B contains other
"general" information economics issues.
PART A:
What has the internet done to the cost of distributing information?
It has virtually brought down this cost to zero. Distributors can place information on their
websites and consumers can access it or download it from there without any additional cost to
the distributor. There are however still the initial costs of preparing the information in a format
that can be placed on the web, and also the costs of maintaining the website and marketing the
website to interested consumers of that information. However, in terms of the marginal cost of
distributing information to one more consumer, that cost has now been brought down to virtually
zero by the internet.
What are experience goods?
These are goods whose value can be ascertained by the consumer only after experiencing or
consuming it. For example if a university wanted to deliver an online course in say, finance, it
might allow potential students to take part of the course free and then if they are satisfied they
could proceed with a charge for the remaining or whole of the course. The same principle
applies to buying software on the web. You are often given a free trial version before you asked
to commit to buy the software.
How is it possible for companies like MSN or yahoo to provide free e-mail or chatting
facilities or "web space" to internet users the world over?
Everything has a cost. Providing free web space or e-mail account to millions of users also must
have a cost. Now if the users are not paying this cost, someone else should. This someone else
is the ever-growing pool of businesses (travel companies, financial advisors, supermarkets,
fashion outlets ­ you name it) who wish to advertise their products to millions of potential
customers worldwide. Yahoo and MSN, because they have such a large captive clientele can
serve as the ideal vehicle media for their advertisements. Thus you will see that whenever you
log on to the yahoo page there is some advert that appears without you asking. This is to ensure
that "all" users do actually see the advert, so that "some of them" buy the product being
advertised.
PART B
(YOU WILL NOT BE TESTED ON THIS IN THE EXAM)
Assume that you wanted the following information. In which cases could you (i) buy
perfect information, (ii) buy imperfect information, (iii) be able to obtain information
without paying for it, (iv) not be able to obtain information?
a) Which washing machine is the most reliable?
b) Which of two jobs that are vacant is the most satisfying?
c) Which builder will repair my roof most cheaply?
d) Which builder will make the best job of repairing my roof?
e) Which builder is best value for money?
f)  How big a mortgage would it be wise for me to take out?
g) What course of higher education should I follow?
h) What brand of washing powder washes whiter?
In which cases are there non-monetary costs to you of finding out the information? How
can you know whether the information you acquire is accurate or not?
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(a)  (i) or (ii);
(b)  (iii) (by asking people currently doing the job) or (iv);
(c)  (iii) (by obtaining estimates);
(d)  (iii) (albeit imperfect, by inspecting other work that the different builders have done) or (iv);
(e)  As (d);
(f)  (iii);
(g)  (iii);
(h)  (i) or (ii) (as in (a)) or (iii) by experimenting.
All could involve the non-monetary costs of the time involved in finding out.
If th
If the information is purely factual (as in (c) above), and you can trust the source of your
information, there is no problem. If you cannot trust the source, or if the information is subjective
(such as other people's experiences in (b) above), then you will only have imperfect information
of the costs and/or benefits until you actually experience them.
Make a list of pieces of information a firm might want to know, and consider whether it
could buy the information and how reliable that information might be.
· Some examples include:
The position and elasticity of the demand curve: Market research can provide some information,
but it is very unreliable, especially in an oligopolistic environment, where the actions of rival are
unpredictable.
· Next year's wages bill:
The information cannot be purchased, but it could use its own past experiences to predict (albeit
imperfectly) the outcome of wage negotiations.
· The costs of alternative inputs:
This information is probably available free from suppliers.
· Ways of saving taxes:
Employing accountants can help the firm save money here.
What type of information can be a public good? (Clue: do not confuse a public good with
something merely provided by the government, which could also be provided by the
private sector.)
An example of information that is nearer to being a public good, is information that is simple
enough not to require being presented as a set of tables or as a report. It can be told from one
person to another: as such it would be difficult to enforce copyright. An example would be the
current rate of inflation or the size of the balance of trade deficit or surplus.
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Table of Contents:
  1. INTRODUCTION TO ECONOMICS:Economic Systems
  2. INTRODUCTION TO ECONOMICS (CONTINUED………):Opportunity Cost
  3. DEMAND, SUPPLY AND EQUILIBRIUM:Goods Market and Factors Market
  4. DEMAND, SUPPLY AND EQUILIBRIUM (CONTINUED……..)
  5. DEMAND, SUPPLY AND EQUILIBRIUM (CONTINUED……..):Equilibrium
  6. ELASTICITIES:Price Elasticity of Demand, Point Elasticity, Arc Elasticity
  7. ELASTICITIES (CONTINUED………….):Total revenue and Elasticity
  8. ELASTICITIES (CONTINUED………….):Short Run and Long Run, Incidence of Taxation
  9. BACKGROUND TO DEMAND/CONSUMPTION:CONSUMER BEHAVIOR
  10. BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED…………….)
  11. BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED…………….)The Indifference Curve Approach
  12. BACKGROUND TO DEMAND/CONSUMPTION (CONTINUED…………….):Normal Goods and Giffen Good
  13. BACKGROUND TO SUPPLY/COSTS:PRODUCTIVE THEORY
  14. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):The Scale of Production
  15. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):Isoquant
  16. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):COSTS
  17. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):REVENUES
  18. BACKGROUND TO SUPPLY/COSTS (CONTINUED…………..):PROFIT MAXIMISATION
  19. MARKET STRUCTURES:PERFECT COMPETITION, Allocative efficiency
  20. MARKET STRUCTURES (CONTINUED………..):MONOPOLY
  21. MARKET STRUCTURES (CONTINUED………..):PRICE DISCRIMINATION
  22. MARKET STRUCTURES (CONTINUED………..):OLIGOPOLY
  23. SELECTED ISSUES IN MICROECONOMICS:WELFARE ECONOMICS
  24. SELECTED ISSUES IN MICROECONOMICS (CONTINUED……………)
  25. INTRODUCTION TO MACROECONOMICS:Price Level and its Effects:
  26. INTRODUCTION TO MACROECONOMICS (CONTINUED………..)
  27. INTRODUCTION TO MACROECONOMICS (CONTINUED………..):The Monetarist School
  28. THE USE OF MACROECONOMIC DATA, AND THE DEFINITION AND ACCOUNTING OF NATIONAL INCOME
  29. THE USE OF MACROECONOMIC DATA, AND THE DEFINITION AND ACCOUNTING OF NATIONAL INCOME (CONTINUED……………..)
  30. MACROECONOMIC EQUILIBRIUM & VARIABLES; THE DETERMINATION OF EQUILIBRIUM INCOME
  31. MACROECONOMIC EQUILIBRIUM & VARIABLES; THE DETERMINATION OF EQUILIBRIUM INCOME (CONTINUED………..)
  32. MACROECONOMIC EQUILIBRIUM & VARIABLES; THE DETERMINATION OF EQUILIBRIUM INCOME (CONTINUED………..):The Accelerator
  33. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS
  34. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….)
  35. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):Causes of Inflation
  36. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):BALANCE OF PAYMENTS
  37. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):GROWTH
  38. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):Land
  39. THE FOUR BIG MACROECONOMIC ISSUES AND THEIR INTER-RELATIONSHIPS (CONTINUED…….):Growth-inflation
  40. FISCAL POLICY AND TAXATION:Budget Deficit, Budget Surplus and Balanced Budget
  41. MONEY, CENTRAL BANKING AND MONETARY POLICY
  42. MONEY, CENTRAL BANKING AND MONETARY POLICY (CONTINUED…….)
  43. JOINT EQUILIBRIUM IN THE MONEY AND GOODS MARKETS: THE IS-LM FRAMEWORK
  44. AN INTRODUCTION TO INTERNATIONAL TRADE AND FINANCE
  45. PROBLEMS OF LOWER INCOME COUNTRIES:Poverty trap theories: