Friday, September 18, 2020

 

 The concept of Opportunity Cost

Opportunity cost is the value of the next best alternative foregone (sacrificed). Alternatively, it is the cost of foregone opportunity (alternative). For instance, suppose a given piece of land, which is equally fit for the production of rice, wheat and grams income from cultivation is Rs.50000, Rs.45000 and Rs.40000 respectively. Suppose with the same cost of cultivation, he decides to produce rice. The opportunity cost of producing rice will be Rs.45000 because it is the value of the next best alternative. Thus, the opportunity cost of any commodity is the amount of other good that has been given up to produce that commodity. That is why the opportunity cost is also called an opportunity lost. Opportunity cost is the cost of availing one opportunity in terms of the loss of the other opportunity.

 

µ Marginal Opportunity Cost / Marginal Rate of Transformation (MRT)

MRT is the ratio of a number of units of a commodity sacrificed to gain  an additional unit of another commodity.



Thursday, September 17, 2020

ROTATION AND SHIFT OF PPC

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µ Shift and rotations in PPC/PPF:

The shift of PPF: PPF can shift rightward or leftward when there is a change in production capacity of both the goods.

i.        Rightward Shift in PPC: When there is the growth of resources or advancement of technology for both the goods, PPC will shift towards the right. It shows the production of both goods will rise.

(Forward shift)


i.        The leftward shift in PPC: When there is a decrease in resources of degradation of technology, for both the goods, the PPF will shift to leftward which indicate the production of both goods decreases.

(Backward shift)


1.    Rotation in PPF: PPC can rotate when there is a change in the production of only one good due to change in technology or resources.

      i.        Rotation of PPC on X-axis: where there are increasing resources or advancement of technology for production of the commodity of X-axis, then PPC rotates outward on the X axes. It shows an increase in the production of X goods.  On the other hand where there is decrease resources or degradation of technology for production of the commodity on X-axis, then PPC rotates inward on the X axes. It shows an increase in the production of X goods.(Diagram A)



Rotation of  PPC on Y-axis: where there are increasing resources or advancement of technology for production of the commodity of Y-axis, then PPC rotates outward on the Y-axes. It shows an increase in the production of Y goods.  On the other hand where there is decrease resources or degradation of technology for production of the commodity on Y-axis, then PPC rotates inward on the Y axes. It shows an increase in the production of Y goods. (Diagram- B )

Wednesday, September 16, 2020

Production Possibility Curve

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Production Possibility Curve:
 PPC is curved which shows a different combination of two goods that the economy can produce with given resources and technology. It is also known as Transformation Curve, production possibility frontier.  etc. Every combination of the PPC shows optimum utilisation of resources. Any combination Under PPC shows underutilisation of resources and any combination above PPC shows the unattainable point.

Production Possibility

X goods (wheat)

Y goods (machine)

A

0

100

B

10

90

C

20

70

D

30

40

E

40

0

Combination A shows that 100 units of machines can be produced without any production of the wheat. Likewise, combination E shows that the 40kg wheat can be produced without any production of machine. Besides these extreme limits, Points A, B, C, D and E show different possibilities of production, of two goods that economy can produce with the given resources and technology. Joining all these points, we get the AE curve. It is the production possibility curve or transformation curve. In diagram combination G shows underutilisation of resources and Combination F is the unattainable resources in given resources.

The assumption of PPC:

1.    Only two goods are produced in an economy.

2.    Resources are limited & have alternative uses.

3.    Resources are fully & efficiently utilised.

4.    Level of technology remains constant.

5.    Resources are not equally efficient in the production of all goods.

µ Features of PPC:

1.    Slopes Downwards: Production possibility curve slopes downward from left to right. It is because, in a situation of fuller and efficient utilisation of the given resources, more of one goods can be produced only by sacrificing the production of other goods.

2.    PPC is concave to the origin: PPF is concave shaped because of the increasing marginal rate of transformation (MRT). MRT increases because it is assumed that no resources are equally efficient in the production of all goods.  If the economy produces more units of one good (x-goods), less efficient resources have to be used so more and more units of other goods (y-goods) will have to be sacrificed.

Tuesday, September 15, 2020

ECONOMICS PROBLEMS AND CENTRAL PROBLEMS

                     


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µ Meaning and Causes of Economic Problems

The economic problems are the problem of choice, which arise due to unlimited wants, limited resources and alternative use of resources.

Causes of Economic Problem:

1. Unlimited Wants: Human wants are unlimited and these wants changes day by day. No one can fulfil all the wants. If one want is satisfied, A new want will arise.

2. Limited Resources: Resources are scarce, it means the supply of resources is less than their demand.

3. Alternative Use: One resource can be used to fulfil differently want, so the problem of choice will arise that which want should be fulfilled first.

Features of the resources:

1.    Scarcity

2.    Alternative uses

 

µ Central Problems

Basic economics problems of an economy are called Central Problem.

Types of Central Problems

1.    What to produce?

This central problem is the first central problems of allocation of resources related to selection on goods and services. This problem has two aspects.

a.) What goods and services are to be produced?

An economy has to decide whether capital goods (plant, machinery) are to be produced or consumer goods (wheat, rice) are to be produced. Similarly, the economy has to make a choice between Normal goods (sweets, AC) & War goods (bomb).

b) How much quantity of these goods are to be produced?

After deciding what goods are to be produced, and economy has to decide how much quantities of these goods are to be produced because resources are limited, more consumer goods mean less of capital goods. For example, if the economy produces more machines, resources become limited to produce wheat.

2.    How to produce?

This the central problem is the second central problems of allocation of resources related to the choice of the technique of production. There are two types of techniques: Capital intensive & Labour intensive technique.

a.)  Capital Intensive: Capital-intensive the technique is the technique in which capital is used more than labour. For e.g. – Making clothes by machine.

b.)  Labour Intensive: Labour Intensive technique is the technique in which labour is used more than capital. For e.g. – Making cloth by handloom.

An economy has to decide which techniques are to be used for production because resources are scarce. For e.g. – In India, the availability of labour is more than capital. Therefore, India will prefer labour intensive technique.

3.    For whom to produce?

This the central problem is the third central problems of allocation of resources. This problem is related to the distribution of income among different persons. Production is the combined efforts of factors of production namely land, labour, capital and enterprise.

An economy has to decide how much income should be distributed amongst factor as rent for land, wages for labour, interest for capital and profit for the enterprise. The economy will produce goods for those persons who have the purchasing power to buy goods. Purchasing power depends upon how much income is distributed among different factors. so ultimately this problem is related to the problems of distribution of income.

It has two aspects:

Personal Distribution:  Personal Distribution means the distribution of income among different people.

Functional Distribution: Functional Distribution means the distribution of income among different factors. 

Saturday, September 12, 2020

Choice and scarcity

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Economics, Micro and Macro Economics , positive and normative economics

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 Economics

“Economics is the science which studies human behaviour as a relationship between ends and scarce means which have alternative uses.

Or

It is a social science in which limited resources are allocated in such a manner that consumer gets maximum satisfaction, the producer gets maximum profit & society gets maximum welfare.

Difference between Micro and Macro Economics

Basis

Micro Economics

Macro Economics

1.    Meaning

 

It is a part of economic theory, which studies the behaviour of individual units.

It is a part of economic theory, which studies the behaviour of the aggregates of the economy as a whole.

2.    Aims

 

The aim of microeconomics is to determine factor and commodity price.

The aim of macroeconomics is to determine national income, output and employment level of the economy.

3.    Tools

 

Tools of microeconomics are demand and supply.

Tools of macroeconomics are  aggregate demand and aggregate supply.

4.    .Examples

Demand, Supply, Cost etc.

National Income, Inflation etc.

 

µ The relationship between Micro Economics and Macro Economics

A close interlink exists between macro and microeconomics. It can be elaborated with the help of some examples:

Microeconomics depends on Macroeconomics

1. Law of demand came into existence from the analysis of the behaviour of a group (aggregate) of people.

2. Price of a commodity is influenced by the general price level prevailing in the economy.

Macroeconomics depends on Microeconomics

1.         The national income of a country is the sum total of incomes of individual units of the country.

2.         Aggregate demand depends on the demand of individual households of the economy.

Therefore, the study of both is indispensable in economic study.

µ Positive Economics and Normative Economics

Basis

Positive Economics

Normative Economics

Meaning

Positive economics deals with an economic analysis that are based on facts and statistical data. (Objective)

It deals with how economic problems should be solved. (Subjective)

Relations with problems

Positive economics is related to ‘what actually is’.

Normative economics deals with the issue of ‘what ought to be’.

Value Judgements

It does not give any value judgements. Analyses cause and effect relationship.

 

Normative economics is based on value judgement and debate, which are required to arrive at some conclusion.

Examples

As per 2011 census, India’s population was around 121 crore.

India should control its
population by adopting family planning





    The concept of Opportunity Cost Opportunity cost is the value of the next best alternative foregone (sacrificed) . Alternatively, it i...