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Published on: 29/12/2018
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1.
If Real GDP is Rs 200 and price Index (with base = 100 ) is 110, calculate Nominal GDP.
2.
Calculate investment expenditure from the following data about an economy which is in equilibrium:
National Income = 1000
Marginal Propensity to Save = 0.25
Autonomous consumption expenditure = 200
3.
What is monetary policy? Explain the
(i) Bank rate and
(ii) Margin requirements in influencing the availability of credit in an economy.
4.
Calculate (a) National Income and (b) Gross National Disposable Income from the following data:
| S.No. | Contents | Rs (in crore) |
| (i) | Net Current Transfers to the Rest of the World | (-) 5 |
| (ii) | Private Final Consumption Expenditure | 500 |
| (iii) | Consumption of Fixed Capital | 20 |
| (iv) | Net Factor Income to Abroad | (-) 10 |
| (v) | Government Final Consumption Expenditure | 200 |
| (vi) | Net Indirect Tax | 100 |
| (vii) | Net Domestic Fixed Capital Formation | 120 |
| (viii) | Net Imports | 30 |
| (ix) | Change in Stock | (-) 20 |
5.
If domestic income is Rs 1000 crore and Net Factor Income from Abroad is Rs (-10) crore, how much will be National Income?
6.
Consider the following demand and supply functions for a good:
Quantity demanded = 160 - 2p
Quantity supplied = -40 + 2p
(i) Calculate the equilibrium price and quantity
(ii) Find out a price at which there is excess demand.
(iii) Find out a price at which there is excess supply.
7.
'Developing countries have constraints'.Do you agree?
8.
Draw a hypothetical propensity to consume curve and from it draw the propensity to save curve.
9.
Show diaglammatically the conditions for consumer's equilibrium, in Hicksian analysis of demand.
10.
From the following data, calculate (a) Gross Domestic Product at Factor Cost and (b) Factor income to abroad.
| S.No. | Contents | Rs (in crore) |
| (i) | Compensation of Employees | 800 |
| (ii) | Profits | 200 |
| (iii) | Dividends | 50 |
| (iv) | Gross National Product at Market Price | 1400 |
| (v) | Rent | 150 |
| (vi) | Interest | 100 |
| (vii) | Gross Domestic Capital Formation | 300 |
| (viii) | Net Fixed Capital Formation | 200 |
| (ix) | Change in Stock | 50 |
| (x) | Factor Income from Abroad | 60 |
| (xi) | Net Indirect Taxes | 120 |
11.
Explain the implications of the following features of monopolistic competition.
(i) Product differentiation
(ii) Free entry or exit of firms
12.
Complete the following table:
| MPC | MPS | Multiplier Value |
| 0.90 | - | - |
| 0.80 | - | - |
| - | 0.25 | - |
| - | 0.40 | - |
| - | - | 2 |
| - | - | 1 |
13.
What are official reserve transactions? Explain their importance in the balance of payments.
14.
Market demand and supply schedules of mangoes (per day) are given below:
| Price (per kg) | Qd (in kg) | Qs (in kg) |
| 9 7 5 3 1 |
4 6 8 10 12 |
14 11 8 5 2 |
Determine: (i) Equilibrium price and equilibrium quantity (ii) Excess demand
at RS.3 per kg. (iii) Excess supply at RS.7 per kg.
15.
Explain the problem of 'for whom to produce' with the help of suitable example.
16.
What does the law of variable proportions show? State the behaviour of marginal product according to this law.
17.
Explain two or three causes of a leftward shift in demand curve of a commodity.
18.
Calculate intermediate consumption from the following data:
| S.No. | Contents | Rs (in lakh) |
| (i) | Value of Output | 200 |
| (ii) | Net Value Added to Factor Cost | 80 |
| (iii) | Sales Tax | 15 |
| (iv) | Subsidy | 5 |
| (v) | Depreciation | 20 |
19.
If MPC and MPS are equal, what is the value of multiplier?
20.
Assume that the market price of US dollar was increased considerably leading to rise in price of the imports of essential goods. What can central bank do to ease the situation?
21.
Name the components of factor income.
22.
What is a negative externality?
23.
What is that market called wherein there are only few sellers (firms)?
24.
Why is a PPC downward sloping from left to right?
25.
Define variable costs.
26.
In a Government budget, primary deficit is Rs 10,000 crores and interest payment is Rs 8,000 crores. How much is the fiscal deficit?
27.
If Legal Reserve Ratio is 0.1, what is the value of deposit multiplier?
28.
Ceteris Paribus, if the government provides subsidies on electricity bills, what would be the likely change in the market demand of desert coolers?
1.
\(RealGDP=\frac { NominalGDP }{ PriceIndex } \times 100\)
\(200=\frac { NominalGDP }{ 110 } \times 100\)
\(NominalGDP=\frac { 200\times 110 }{ 100 } =\frac { 22000 }{ 100 } =Rs220\)
2.
I = 50
3.
Monetary policy is the policy relating to the regulation of supply of money, rate of interest and availability of money, with a view to combat situation of inflationary or deflationary gap in the economy. This policy is taken by the Central Bank of the country.
(i) Bank rate: It is the rate at which the Central Bank offers loan to the commercial banks as 'lender of last resort'. During inflation, bank rate is increases to reduce the money supply in the economy because commercial banks will also increase the interest rates accordingly. It will imply a check on the borrowing from commercial banks. Thus, overall supply of money/credit is reduced in the economy. During deflation, bank rate is lowered leading to increase in supply of money/credit.
(ii) Margin requirements. A margin refers to the difference between market value of the security offered for loan and the amount of loan offered by the commercial bank. During inflation, supply of money/credit is reduced by raising the requirement of margin and vice-versa.
4.
(a) National Income (\({ NNP }_{ FC }\))
= Private Final Consumption Expenditure + Government Final Consumption Expenditure + Net Domestic Fixed Capital Formation + Change in Stock - Net Imports - Net Indirect Tax - Net Factor Income to Abroad
= 500 + 200 + 120 + (-20) - 30 - 100 - (-10)
=700 + 100 + 10 - 130
= Rs 680 crore
(b) Gross National Disposable Income
= \({ NNP }_{ FC }\) + Net Indirect Tax + Consumption of Fixed Capital - Net Current Transfer to the Rest of the World
= 680 + 100 + 20 - (-5) = Rs 805 crore
5.
National Income = Domestic Income + Net Factor Income from Abroad = 1000 + (-10) = Rs 990 crore
6.
(a) Quantity demanded = 160 - 2p
Quantity supplied = -40 + 2p
Equlibrium is attained at a point where market demand is equal to market supply, i.e.
Quantity demanded = Quantity supplied
Hence, \(160-2p=-4p+2p\\ 160+40=2p+2p\\ 200=4p,\quad p=\frac { 200 }{ 4 } =50\)
Hence, equilibrium price = Rs.50
Equilibrium quantity will be,
Quantity demanded = Quantity supplied
\(=160-20=160-2\times 50\\ =160-100=Rs.60\)
(b) At any price below the equilibrium price, there will be excess demand.
Let us take at price Rs.20
At p = Rs.20
\(Quantity\quad demanded\quad =160=-2p\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =160-2\times 20=160-40\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =Rs.120\\ Quantity\quad supplied\quad =\quad -40\quad +\quad 2p\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =\quad -40\quad +\quad 2\times 20\quad =\quad -40\quad +40\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =0\)
Quantity demanded
> Quantity supplied [ excess demand]
Also, it can be concluded that at Rs.20 there will be no supply of the commodity, hence between 20 < p < 50, there will be excess demand.
(c) At any price above equilibrium, there will be excess supply.
Let us take at price Rs.80
\(Quantity\quad demanded\quad =160-2p\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =160-2\times 80=160-60\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =0\\ Quantity\quad supplied\quad =-40+2p\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =-40+2\times 80=-40+160\\ \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad =120\)
Quantity demanded
<Quantity supplied [excess supply]
Also, it can be concluded that at p=Rs.80 demand will be zero, hence there will be excess supply between 50 < p < 80.
7.
This is true developing countries have supply constraints.Supply is limited due to underdeveloped technology, inadequate transportation and infrastructural facilities and scarce resources etc.Producers are willing to increase supply but do not have the resources do so.
8.
The steps involved in the derivation of the saving curve from the consumption
curve are:
(i) We can find savings at different levels of income by taking the vertical distance between the CIS consumption curve (CC)and the 45° line.
(ii) At point B in the diagram income and consumption expenditure are equal Y = C, i.e., savings are zero.
(iii) To the left of point B, CC curve is higher than the 45° line, which denotes income. This implies savings are negative (or Dissaving)to the left of point B, in the diagram.
(iv) To the right of point B, CC curve is lower than the 45° line, this implies C < Y and savings are positive.
(v) By plotting the distance between the CC curve and 45° line at different levels of income just below the upper part we can derive the saving curve SS'. Since the CC curve is a straight line, the derived savings curve \(\rightarrow \) SS, must also be a straight line. For this we are required to locate only 2 points.
(a) Plot a perpendicular <-F)from point Bon the consumption curve, intersecting the OX axis, at point D, which must be on the OX axis, because savings is zero when Y = C.
(b) Plot as on the lower part of OY axis as equal to OC on the Y axis on the upper part. This gives us point S, from where the saving curve will start.
(vi) Joining points Sand Dand extending the straight line upwards we derive the savings curve SDS.
9.
As per the Hicksian analysis, the given consumer attains equilibrium when the two conditions are fulfilled.
(i) MRS = MRE = PX/PY
Slope of Indifference curve = Slope of the Budget line
(ii) MRSfallsas more is consumed of one good at the cost of another.
Showing the condition of equilibrium diagrammatically.
The given budget line AB is tangential to the indifference curve I2 at point X in the given diagram.This is the consumers equilibrium.The utility maximizing combination of the two goods is OQ of good

10.
(a) GDPFC = NDPFC - CFC
= (i) + (ii) + (iv) + (vi) + CFC
= 800 + 200 + 150 + 100 +50 = 1250 + 50
= Rs 1300 crores
(b) Factor income to abroad = Factor Income from abroad - NFIA
= 60 - (-20) = Rs 80 crores
11.
(i) Product differentiation It is a distinct feature of monopolistic competition.A product is often differentiated by way of trademarks and brand names.The differentiated products are close substitutes of each other like colgate and closeup toothpaste.
Because of product differentiation, each firm can influence its price.So that, each firm has a partial control over price of its product.
(ii) Free entry or exit of firms Firms are free to enter the industry or leave it.However, new firms have no absolute freedom of entry into industry.Products of some firms may be legally patented.New firms cannot produce those products, e.g. no rival firm can produce or sell a patented item like woodland shoes.
12.
| MPC | MPS | Multiplier Value |
| 0.90 | 0.10 | 10 |
| 0.80 | 0.20 | 5 |
| 0.75 | 0.25 | 4 |
| 0.60 | 0.40 | 2.5 |
| 0.50 | 0.50 | 2 |
| 0 | 1.0 | 1 |
13.
The transactions carried by monetary authority of a country, which cause changes in official reserves, are termed as official reserve transactions (aRT). These transactions are carried through purchase or sale of currency in the exchange market for foreign currencies or other assets. The reserves are drawn by selling foreign currencies in exchange market during deficit and foreign currencies are purchased during surplus. When the official reserves increase or decrease, it is called overall balance of payments surplus or deficit respectively. Importance of ORT in balance of payments:
(a) Purchase of a country's own currency is a credit item in the balance of payments; whereas, sale of the currency is a debit item.
(b) It helps to adjust the deficit and surplus in balance of payments.
14.
(i) Equilibrium price = RS. 5, Equilibrium quantity = 8 kg
(ii) Excess demand = 10 - 5 = 5 kg
(iii) Excess supply = 11 - 6 = 5 kg
15.
The central problem of 'for whom to produce' is related with the distribution of goods that have been produced in the economy. National income earned from goods and services is the joint effort of all the factors of production. Distribution of national income among three factors can be done on the basis of contribution of an individual factor in the production of goods and services.
A factor which contributes more gets a higher share In the total output produced in the economy.
16.
The law of variable proportions states that if we go on using more and more units of a variable factor (labour), keeping other inputs fixed, the total product increases at an increasing rate in the beginning, then increases at a diminishing rate and after a level of output, it ultimately falls. In accordance with law, the marginal product increases in the beginning, then it starts falling but remains positive and ultimately it continues to fall and becomes negative also. The following schedule and diagram illustrate the law:
|
Units of Land |
Units of Labour |
\(M{P}_{L}\) | Phases |
|
1 1 1 |
1 2 3 |
2 4 6 |
Phase I. MP rises (Increasing returns to a factor)
|
|
1 1 1 |
4 5 6 |
4 2 0 |
Phase II. MP falls but remains positive (Diminishing returns to a factor) |
|
1 1 |
7 8 |
-2 -4 |
Phase III. MP becomes negative (Negative returns ta a factor) |
The schedule and diagram show that there are three phases of law of variable proportion. In Phase I, MP rises till point M, in Phase II MP falls but remain positive till point \({L}_{1}\) . In phase III MP becomes negative i.e., after point \({L}_{1}\)

17.
Following are the three causes of a leftward shift of demand curve:
(i) Fall in the income of the consumer.The demand for normal good decreases with the fall in income. The demand curve for normal good shifts to the left with the fall in the income of the consumer.
(ii) Fall in the price of substitute goods.The demand f?r a good falls with the fall in the price of its substitute good. As a result the demand curve for the commodity shifts to the left with the fall in the pnce of its substitute good.
(iii) Rise in the price of complementary good.The demand for a good falls with a rise in the price of its complementary good. As a result the demand curve for the commodity shifts to the left with a rise in the price of its complementary good.
18.
Rs 90 lakh
19.
( )
Value of multiplier will be equal to two.
20.
( )
If the market price of US dollar increased considerably leading to rise in the price of imports of essential goods e.g. petrol. The Central Bank can increase' the supply of foreign exchange from its reserves in order to decrease the value of dollar.
21.
( )
The components or factor income are: (i) Compensation of Employees (ii) Profits (iii) Rent (iv) Interest (v) Mixed income of the self-employeds.
22.
( )
Activity resulting in harm to others is called a negative externality.
23.
( )
Oligopoly refers to a market situation in which there are few sellers.
24.
( )
PPC is downward sloping because more of one good can be obtained only by giving up the production of another good, given the resources of the economy.
25.
( )
Variable costs are the costs which change with change in the level of output, e.g., expenditure on raw material, power, and fuel.
26.
( )
Fiscal Deficit = Primary Deficit + Interest Payment
= 10,000 + 8,000
= Rs 18,000 Crores
27.
If LRR is 0.1,then deposit multiplier = Deposit multiplier = \(\frac { 1 }{ LRR } =\frac { 1 }{ 0.1 } =10\)
28.
( )
On account of subsidy provided on electricity bills, it will become relatively cheaper so demand for desert coolers will increase.
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