Make Economics comprehensive

Sunday, December 4, 2011

Marking scheme First pre-Board 2011-2012


Q 1. Equilibrium price is determined where quantity demanded is equal to quantity supplied.

Q 2. Upward movement along the demand curve indicate fall in quantity demanded due to rise in price.
Q 3. When increase or decrease in price does not affect quantity demanded of the good .

Q 4. Production possibility frontier depicts the various combinations of two goods that can be produced in the economy with the help of given resources and fixed technology.

Q 5. Less elastic

Q6. How to produce is one of the central problems of economy related with choice of technique of production. There is two types of technique.Labour intensive and capital intensive. The country which is having abundance of labour will use labour intensive technique. And the country where capital is cheap will adopt capital intensive technique.

Q7. The difference between Average total cost and average variable cost decreases with rise in output as average Fixed cost falls. The difference between ATC and AVC is average fixed cost.

AFC=ATC-AVC

As fixed cost is constant and output increase AFC falls.

Q8. Decrease in Quantity demanded

1.It is the result of increase in price

2.There is upward movement along the demand curve.

3. This is also known as Contraction of demand.

Decrease in demand

1.It is the result of unfavourable change in taste, fall in price of substitute good etc.

2.There is Leftward shift of demand curve.

3.This is only known as decrease in demand.


Q9. In perfect competition there are large number of buyers and seller. Firm is a price taker and industry fixes the price. Industry is very large in comparison to firm. The individual firm can not affect market supply through its decision regarding production. The individual buyers can not affect market demand for the good. So price remains constant in perfect competition.

Q10. A consumer is said to be in equilibrium when he maximizes his satisfaction. He consumes at a particular amount of good where he is getting maximum satisfaction.

According to MU approach the consumer is in equilibrium when marginal utility in terms of money of a good becomes equal to price of that good.

MU in terms of money=Price

Units MU in terms of money Price


1            4                  3


2            3                  3


3            2                 3






The consumer is in equilibrium when he is consuming 2 units since at second unit MU in terms of money becomes equal to the price.

If MU in terms of money > price it means consumer is getting more satisfaction than what he is spending so he will increase his consumption.

If MU in terms of money < Price it means he is getting less satisfaction than what he is paying so he will not consume at this level.

So the consumer is in equilibrium when marginal utility in terms of money of a good becomes equal to price of that good.

Q 11. Law of supply states other things remaining unchanged if the price of a good increase its quantity supplied also increases and if the price of that good decreases its quantity supply also falls.
Other things may be technological progress, price of inputs used in production, rate of Excise tax, no of firms etc.


Price          QTY


1                 10


2                   20


3                  30


4                 40


or


If the rate of excise tax falls cost of production also falls. Supply of the good increases. Supply curve will shift to Right.
As cost of Production falls MC decreases, Producer is able to produce more.


Q 12. P = 5 Q =120


P = 2


Es =2


Es = q/ p*P/Q

2 =dq/2 * 5/120

q =96


Q=120+96 =216 units


Q 13. Increase in income of buyer of a good affect the demand for a good.

Goods are of two types -:

Normal Goods and Inferior Goods

If the income of the buyer increases the demand for normal good will also increases and the demand curve will shift to right.

In case of inferior good with the increase in income of buyer the demand for inferior good will falls. And the demand curve will shift to left.


Q 14. If the price of substitute good increases the demand for given good also increases and the demand curve will shift to right.

The Equilibrium price will increase and the equilibrium quantity will also increase.

Diagram and explanation-

How does this change come about -: When the demand of given good increases it lead to competition among buyers as a result price of the good increases. The Supply of the good will increase at increased price. Hence Equilibrium price and Equilibrium Quantity both will increase.

Or

If the price of inputs used in the production of given good falls the supply for given good increases and the supply curve will shift to right.

The Equilibrium price will decrease and the equilibrium quantity will increase.

How does this change come about -: When the supply of given good increases it lead to competition among sellers as a result price of the good decreases. The demand of the good will increase at reduced price. Hence Equilibrium price falls and Equilibrium Quantity will rise.

 15. A consumer is said to be in equilibrium when the budget line becomes tangent to indifference curve. At the point of tangency the slope of indifference curve and slope of budget line becomes equal.

If there are two good X and Y are there.

MRSxy =Px/Py

So the consumer is in equilibrium when the Marginal rate of substitution between two good becomes equal to price ratio of those two goods.


If MRSxy > Px/Py -: It means the consumer is willing to give up more amount of good y to have one more unit of good x then actually what he has to give up. He is in gains. He will increase the consumption of good x.

If MRSxy < Px/Py -: It means the consumer is willing to give up less amount of good y to have one more unit of good x then actually what he has to give up. He is in loss. He will reduce the consumption of good x.


Q16. Producer’s equilibrium -: A Producer is said to be in equilibrium when he is maximizing his profits. He produces a level of output where his profits are maximum.

According to TC and TR approach the producer is in equilibrium when the difference between TR and TC is maximum.


Units Price MC TR TC Profits


1  30     36   30       36        -6


2 30     30    60       66       -6


3 30      22    90      88         2


4 30      12   120    100      20


5 30      30    150     130    20


6 30      38    180     168        12


At 4th and 5th unit he is maximizing his profits. The producer is in equilibrium at 5th unit because after this his profit starts falling down.

Q17. It is the situation when able bodied people who are willing to work but do not find gainful employment at prevailing wage rate.

Q18. Import of goods

Unilateral transfer received. Any two related

Q19. Legal reserve ratio is the sum of Cash reserve ratio and statutory liquidity ratio. It is that part of deposits of commercial bank which they have kept legally in the form of cash reserve with RBI and self.

Q20. Investment multiplier is a number which when multiplied by change in investment determines change in investment.

Or It is the ratio of change in income to change in investment.

Q 21. Margin requirement of a loan is the difference between the actual value of asset and the loan advances against that asset.


Q 22. Circular flow of income shows the interdependence between various sectors in the economy on each other. In two sector economy it shows the interdependence of households and firms on each others.

Households supplies factors of production to firms and firms supply good and services to households by using factor services. This is real flow.

Firms pay factor payments to households for factor services and households pays to firms for goods and services. This is monetary flow.

Diagram-

Q 23. Current account of Balance of payments record all the transaction related to goods and services and unilateral transfer in the current year.

Capital account of balance of payments record all the transactions which affect asset and liabilities of individual and government both in short run and long run.

Import of machinery is recorded in current account as machinery is a good.

Q 24. GVAmp = Value of output – intermediate consumption

GVAmp = (Sales + Change in stock)-Intermediate consumption

600 = (sales +20 ) – 100

Sales = 680 lakhs


Q 25. Demand curve of foreign exchange is downward slopping it means when foreign exchange rate increases the demand for foreign exchange falls and when foreign exchange rate falls the demand for foreign exchange rises.

When foreign exchange rate increases it means more Rupees are needed to buy one dollar.

Demand for foreign exchange basically reflects the demand for foreign goods. If foreign exchange rate increases the foreign goods become costlier as a result the demand for import decreases and hence demands for foreign exchange.

If foreign exchange rate decreases the foreign goods become cheaper as a result the demand for import increases and hence demands for foreign exchange increases.


Or

The supply of foreign exchange increases with increase in foreign exchange rate.

When foreign exchange rate increases it mean more rupees are exchanged with one dollar or one dollar can buy more Rupees than earlier.

Export, Investment by foreigners etc are the measure sources of supply of foreign exchange

Our goods become cheaper for foreigners when foreign exchange rate increases. The demand for cheaper goods rises as a result exports increases and supply of foreign exchange increases.

Q26. 1. Yes, Since the branches are located within the domestic territory of India it will be included in domestic income of India.

2. Yes, Since the embassy of India situated in Japan is the part of domestic territory of India the salary generated in Indian embassy is included in domestic income of India.

3. No, Interest received on public debt is a transfer income. Transfer income is not included in domestic income.

No marks without reasoning.


Q27. C = 150 +0.75 Y

I = 7500

At equilibrium level of income S=I

So savings = 7500


Y =C+S

Y =150+0.75Y +7500

Y-0.75Y =7650

0.25Y=7650

Y=7650/0.25

Y=30600/-

Equilibrium level of income is 30600/-

C=Y-S

C=30600-7500=23100/-

Q28. Fiscal deficit is the difference between total expenditure and total receipts excluding borrowings.

FD = TE –TR (excluding borrowings)

It determines the actual level of borrowings in the economy.

Fiscal deficit can be financed by two ways

Deficit financing -It means printing of new currency. It may be inflationary as Indian currency is non convertible.

Borrowing-Borrowings may lead to increase in liabilities.

Or

Primary deficit is the difference between fiscal deficit and interest payments.

It determines whether the fiscal deficit in Government budget has arisen due to interest payment on previous borrowings or some other activity of government.

PD= FD –Interest payments

A large primary deficit indicates that the fiscal deficit is more then inters payments. It means Fiscal deficit in government budget has not arisen due to interest payments on previous borrowings. It may be due to spendthrift of government. Government is irresponsible.



Q29. There may be the situation of excess demand and deficient demand in the economy. Excess demand results in rise in price. Deficient Demand leads to fall in output, income, Employment and price level.

Government tries to bring economic stability in the economy through change in policy of taxation, borrowing and public expenditure. In case of excess demand tax and borrowing are increased and expenditure is reduced.

In case of deficient demand tax and borrowing is reduced whereas public expenditure is increased.


Q30. Credit creation is a process through which commercial banks create new deposits from initial deposits. This process depends on two things one is amount of initial deposits and other is legal reserve ratio.

Legal reserve ratio is the sum of cash reserve ratio and statutory liquidity ratio. Cash reserve ratio is that part of deposits held by commercial banks which commercial bank has to maintain with reserve bank of India.

SLR is that part of deposits held by commercial banks which they have to maintain with themselves in the form of cash reserve.

The amount of loan given by commercial banks is the difference between total deposits and legal reserve.

Money multiplier determines the times initial deposits get converted to new deposits.

M.M.=1/LRR

If LRR is 20% the money multiplier will be 5.It means new deposits will be 5 times of initial deposits.

It is assumed that all the transactions in the economy is rooted through banks by using cheques.

Suppose initial deposits are 1000 cr .The bank can lend up to 800cr and remaining 200cr are kept as legal reserve. Those who receives loan will draw cheques to pay for transactions. Those who will receive the cheques deposits in their account.So the banks deposits increase by 800 cr rs.

This process continues till legal reserve will become equal to initial deposits.

At this time the new deposits will be Rs 5000.

Or


1. Bank rate-: It is the rate at which central bank advances loans to commercial banks.


It basically affects the demand for loans. If bank rate will be more the demand for loans will be less and if bank rate is less the demand for loan will be more. When bank rate is less more loans will be demanded and hence credit creation will be more. In case of high bank rate the demand for loan will be less so less credit creation will take place.

2. Legal Reserve Ratio-: It is the sum of CRR and SLR. It affects the supply of credit. If legal reserve ratio is more less amount of loan can be and credit creation will be less. If LRR is less more amount can be given on loan hence credit creation will be more.

Suppose LRR is 40% money multiplier will be 2.5 and new deposits will be 2.5 times of initial deposits. If LRR is 20% money multiplier will be 5 and new deposits will be 5 times of initial deposits.

3. Open market operation -: Open market operation refers to buying and selling of government securities by central banks to commercial banks in open market. During inflation central bank sells securities to commercial banks as a result commercial banks shifts funds toward central bank. Credit creation will be less as less is given on loan. During deficient demand central bank buys securities from commercial banks as a result funds shift from central bank to commercial banks. More is available to give on loans. Credit creation will be more.

Q31 Deficient demand-: Deficient demand is that level of aggregate demand which fall short of effective demand require to maintain full employment level of output.It is the difference between full employment level of output and actual demand in the economy.

Deficient Demand = Effective demand – Actual demand






Income,output,emp

AS is represented by 45 degree line since both the axis is equidistant from this line.

Ade is effective demand.AD0 is actual demand.

NF is deficient demand. Economy can produce OF level of output when all the resources are fully employed. But economy is producing On Level of output since aggregate demand is less.

Employment, output and price level will fall in the economy.

Q32 Income method

NDPFC=Compensation of employee+ operating surplus+ Mixed Income

=800+ (250+ 400+ 150)

=1600 Cr

NNPfc= NDPfc+ NFIFA

National Income= 1600+ (-10)=1590Cr

Expenditure Method

GDPmp= Private Final Consumption Expenditure+Government final consumption final expenditure+Gross domestic capital formation+ Net exports

=1000+ 500+ (200+ 60)+ (-20)

=1740

NNPfc= GDPmp-Depritiation+ NFIFA-NIT

=1740-60+(-10)-80

National Income= 1590Cr















Wednesday, October 5, 2011

Balance of Payment


Balance of payment : Meaning andcomponenets

Meaning :- The balance of payment of a country is a systematic record of all economic transactions between the residents of the reporting country and the residents of foreign countries during a given period of time

Balance of trade and balance of payment :-
Balance of trade takes into account only those transactions arising out of the exports and imports of goods(the visible items).It does not consider the exchange of services rendered such as shipping. Balance of payments takes into account the exchange of both visible and invisible items. Hence, the balance of payments represents a better picture of a country’s economic transactions with the rest of the world than the Balance of Trade.
Structure of Balance of Payments Accounts :-
A Balance of payments statements is a summary of a nation’s total economic transactions undertaken on international account. It is usually composed of two sections :-
1) Current Account
2) Capital Account

1) Current Account :- It records the following 3 items :-
i) Visible items of trade :- The balance of export and import of goods is called the balance of visible trade eg. Tea, Coffee etc.
ii) Invisible trade :- The balance of exports and imports of services is called the balance invisible trade eg. Shipping, insurance etc.
iii) Unilateral transfers :- Unilateral transfer are receipts which residents of a country make without getting anything in return eg. Gifts etc.
       The net balance of visible trade, invisible trade and of unilateral transfers is the balance on current account.
2) Capital Account :- It records are international transactions that involve a resident of the domestic country changing his assets with a foreign resident or his liabilities to a foreign resident.

Various forms of capital account transactions :-
1) Private Transactions :- There are transactions that effect the liabilities
    and assets of individuals.
2) Official Transactions :- Transactions affecting assets and liabilities by
    the govt. and its agencies.
3) Portfolio Investment :- It is the acquisition of an asset that does not
    give the purchaser control over the asset.
4) Direct Investment :- It is the act of purchasing an asset and at the same
    time acquiring control of it.
    The net value of the balance of direct and portfolio investment is called
    the balanced on Capital Account.

Other items in the balance of payments:-
These are included since the full balance of payments account must balance. These are as follows –
i) Errors and omissions :- These may arise due to the presence of sampling error or dishonesty.
ii) Official reserve transactions :- All transactions excepts those in the category of autonomous transactions.

Autonomous Items :-
Autonomous items in BOP refer to international economic transactions that take place due to some economic motive. Such as profit maximization. These items are often called above the line items in BOP.
          The BOP is in deficit if autonomous receipts are less than autonomous payments. The monetary authorities may finance a deficit by depleting their reserves of foreign currencies or by borrowing from the IMF.
Accommodating Items :- Accommodating items in the BOP refer to transactions that occur because of other activities in the BOP, such as government financing. Accommodating items are also referred to as below the line items.

Disequilibrium in BOP :-
There are number of factors that cause disequilibrium in the BOP. Showing either a surplus or deficit. These are categorized in three factors:-  i)       Economic factors
i)                   Political factors
ii)                Social factors

Very Short Answer type Question ( 1 Mark each )
Q1. What is meant by balance payment?
Ans. The balance of payment of a country is a systematic record of all
         economic transactions between the residents of the reporting
         country and the residents of foreign countries during a given period
         of time
Q2:-  What is meant by balance of trade?
Ans. Balance of trade takes into account only those transactions arising
         out of the experts and imports of goods(the visible items).It does
         not consider the exchange of services.
Q3.  Give two examples of invisible items of balance of payments.
Ans. The two examples of invisible items of balance of payments are:-
1)    Services like shipping, insurance banking
2)    Expenditure by tourists.
Q4.  Name the two accounts of balance of payment.
Ans. 1) Current account
        2) Capital account
Q5.  What type of activities are recorded in the current account of
        balance of payment?
Ans. The current account records imports and exports of goods and
         services and unilateral transfers.
Q6.  What type of transactions are recorded in the capital account of
        balance of payments?
Ans. The capital account records all international transactions that
         involve a resident of the domestic country changing his assets with
         a foreign resident or his liabilities to a foreign resident.
Q7.  What are unilateral transfers or unrequited transfers?
Ans. Unilateral transfer are receipts which residents of a country make
         without getting anything in return eg. Gifts etc.
         The net balance of visible trade, invisible trade and of unilateral
         transfers is the balance on current account.

Q8.  Are exports and imports recorded as positive or negative items in
        foreign exchange?
Ans. Exports cause an inflow of foreign exchange into the country so
         they are entered as positive items. Imports cause an outflow, so they
         are entered as a negative item.
Q9.  Give an example of private unrequited transfers.
Ans. Gifts that domestic residents receive from or make to foreign
         residents eg. An Indian resident working in Dubai sending back
         money to their relative in India.
Q10.  Give an example of official unrequited transfers.
Ans.  Receipt of or giving of foreign aid from development countries to
          developing countries.
Q11.  What is meant by ‘ Portfolio Investment’ in the capital account
          transactions?
Ans. Portfolio Investment is the acquisition of an asset that does not give
         the purchaser control over the asset. For eg. Investment in the
         purchase of shares in a foreign company or of bonds issued by a
         foreign govt.

Q12.  What is meant by ‘Direct Investment’ in the capital account
          transactions?
Ans. Direct investment is the act of purchasing an asset and at the same
         time acquiring control of it. For example, acquisition of a firm in
         one country by a firm in another country.

Short Answer Questions :-

Q1.  Differentiate between balance of payment and balance of trade.
Ans.
Balance of Trade
Balance of Payments
1. Balance of trade is a record of
    only visible items i.e. exports
    and imports of goods.
2. Balance of trade is a narrower
    concept as it is only a part of
    the balance of payments
    account.
3. Balance of trade can be in a
    deficit, surplus or balanced
1. Balance of payments is a record
    of both visible items (goods) and
    invisible items (services)
2. Balance of payments is a wider
    and more useful concept as it is a
    record of all transactions in
    foreign exchange.
3. Balance of payments must
    always balance



Q2.  Explain the components of capital account
Ans.  It records are international transactions that involve a resident of
         the domestic country changing his assets with a foreign resident or
         his liabilities to a foreign resident.
        Various forms of capital account transactions :-
         1) Private Transactions :- There are transactions that effect the
             liabilities and assets of individuals.
         2) Official Transactions :- Transactions affecting assets and  
             liabilities by the govt. and its agencies.
         3) Portfolio Investment :- It is the acquisition of an asset that does
             not give the purchaser control over the asset.
         4) Direct Investment :- It is the act of purchasing an asset and at the
            same time acquiring control of it.
            The net value of the balance of direct and portfolio investment is
            called the balanced on Capital Account.



Q3.  Differentiate between autonomous and accommodating items.
Ans.
Autonomous Items
Accommodating Items
1. Autonomous items refer to
    international economic
    transactions that take place
    due to some economic
    motive such as profit
    maximization. These
    transactions are independent
    of the state of the country’s
    BOP.
2. These items are often called
    above the line items in the
    BOP.
1. This refers to transactions that
    occur because of other activity in
    the BOP, such as government
    financing.





2. These items are called below the
    line items

Q4.  Describe the cause for disequilibrium in the BOP.
Ans. The cause of disequilibrium in the BOP are :-
        1) Economic Factors :- Large scale development expenditure that
            may cause large imports
·        Cyclical fluctuations in general business activity such as recession or depression.
·        High domestic prices may result in increase in imports.
·        New sources of supply, new and better substitutes to existing products and changes in costs will bring about a change in trade flows and hence BOP over a period of time.
        2) Political Factors :- Political instability can cause large capital
             outflows and reduce the inflow of foreign capital.
        3) Social Factor :- Changes in tastes, preferences and fashion may
            affect imports and exports and hence the balance of trade.

Wednesday, September 21, 2011

Questions from LastFive Years Question Papers 1mark

Last five years CBSE Questions (2006-2010) (Delhi, outside and foreign sets) Microeconomics  
                                                                1 Mark Questions
1. Define an indifference curve?
2. Define budget line?
3. What is meant by inferior goods in economics?
4. Name the characteristic which makes the monopolistic different from perfect competition?
5. Define cost?
6. In which market forms firm can not influence the price? Define Monopoly?
7. What can you say about number of buyers and sellers in monopolistic competition?
8. Why is demand for water inelastic?
9. State one feature of oligopoly?

10. In which market form demand curve of a firm is perfectly elastic?
11. Define monopoly
12, Define marginal rate of transformation
13. What is demand schedule?
14. Define production function
15. What is market supply?
16. Define equilibrium price
17. Give the meaning of opportunity cost.
18. What is meant by inferior good in economics?
19. Define marginal cost
20. Give one reason for rightward shift in supply curve
21. Why is ATC greater then AVC
22. What gives rise an economic problem?
23. Define production function?
24. What happens to equilibrium price of commodity if there is decrease in its demand and increase in its supply?
25. What induces new firms to enter an industry?

Q. 26. Answer the following questions: 1×4
a. Define marginal opportunity cost.
b. Why is a production possibility curve concave?
c. State two characteristics of resources which give rise to an economic problem.
d. Give two examples of microeconomic studies.
Q. 27. Answer the following questions: (1 x 4 = 4)
1. When a good is called an ‘inferior good’?
2. Define marginal cost.
3. When the supply of a commodity is called ‘elastic’?
4. Define marginal physical product.
Q. 28. Answer the following questions: (1 x 4 = 4)
i. When a good is called a ‘normal good’?
ii. Define fixed cost.
iii. Define marginal revenue.
iv. Price elasticity of supply of a good is 0.8. Is the supply ‘elastic’ or ‘inelastic’, and why?
Q. 29. Answer the following questions: (1 x 4 = 4)
i. Give meaning of opportunity cost.
ii. Define marginal physical product.
iii. Give meaning of supply.
iv. Define fixed costs.
Q.30. Answer the following questions (1 x 4 = 4)
i. Define utility.
ii. Define production function.
iii. Give meaning of ‘revenue’ in micro-e’
iv. Define equilibrium price.
Q. 31. Answer the following questions:
a. Why does an economic problem arise?
b. Define opportunity cost.
c. What does a rightward shift of production possibility curve indicate?
d. Define microeconomics. 1×4
Q. 32. Answer the following questions: 1×4 = 4
a. Give two reasons for the problem of choice.
b. Give one reason for a rightward shift of the Production Possibility Curve,
c. Give two examples of microeconomic studies.
d. What does the problem ‘for whom to produce’ refer to? ------------------------------------------------

Monday, August 8, 2011

Market Equilibrium

Excess Supply and Excess Demand

Equilibrium is determined at a point where quantity demanded is equal to quantity supplied.At equilibrium price there is zero excess demand and Zero excess Supply.Excess Supply-: When market price is more than the equilibrium price quantity supplied is more than quantity demanded.This situation is refered as Excess supply. Excess Demand-: When market price is less than the equilibrium price quantity demanded is more than quantity supplied.This situation is refered as Excess demand.

Excess Supply to Equilibrium

In case of Excess Supply Quantity demanded is less than Quantity supplied.Market price is greater than equilibrium price.This will lead to competition among sellers.Which force the price to go down .The price will continue to fall till situation of Zero Excess supply sets in.Now equilibrium price will prevail.

Excess Demand to Equilibrium

In case of Excess demand Quantity demanded is more than Quantity supplied.Market price is lower than equilibrium price.This will lead to competition among buyers.Which force the price to go up .The price will continue to rise till situation of Zero Excess demand sets in.Now equilibrium price will prevail.