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Question 1 Report
Highlight the causes of Balance of payments deficits in your country.
A balance of payments deficit occurs when a country's total payments to the rest of the world exceed its total receipts, mainly because imports and other outflows exceed exports and other inflows. The main causes in a developing country such as Nigeria include:
The central reasoning is that the country spends more foreign exchange on imports and other outflows than it earns from exports and inflows, and this gap is widened by over-dependence on unstable primary exports.
Answer Details
A balance of payments deficit occurs when a country's total payments to the rest of the world exceed its total receipts, mainly because imports and other outflows exceed exports and other inflows. The main causes in a developing country such as Nigeria include:
The central reasoning is that the country spends more foreign exchange on imports and other outflows than it earns from exports and inflows, and this gap is widened by over-dependence on unstable primary exports.
Question 2 Report
Explain the advantages and disadvantages of monopoly.
A monopoly is a market in which a single firm is the sole seller of a product that has no close substitutes, protected by barriers to entry.
Advantages of monopoly:
Disadvantages of monopoly:
Answer Details
A monopoly is a market in which a single firm is the sole seller of a product that has no close substitutes, protected by barriers to entry.
Advantages of monopoly:
Disadvantages of monopoly:
Question 3 Report
What would be the economic consequences if prices were fixed by the government?
When the government fixes prices away from the free-market equilibrium, the economic consequences depend on whether the fixed price is below or above equilibrium.
Price fixed below equilibrium (a maximum or ceiling price), often to protect consumers of essential goods:
Price fixed above equilibrium (a minimum or floor price), often to protect producers, for example a guaranteed price for farmers or a minimum wage:
The key point is that a controlled price prevents the market from clearing, so either a persistent shortage or a persistent surplus results, together with side-effects such as black markets, rationing and misallocation of resources.
Answer Details
When the government fixes prices away from the free-market equilibrium, the economic consequences depend on whether the fixed price is below or above equilibrium.
Price fixed below equilibrium (a maximum or ceiling price), often to protect consumers of essential goods:
Price fixed above equilibrium (a minimum or floor price), often to protect producers, for example a guaranteed price for farmers or a minimum wage:
The key point is that a controlled price prevents the market from clearing, so either a persistent shortage or a persistent surplus results, together with side-effects such as black markets, rationing and misallocation of resources.
Question 4 Report
Given the demand function for commodity X \(Qd = 12 - 2P\) where Qd is the quantity demanded and P the price of the commodity.
| P | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Qd |
Use the demand function to complete the table
(b) Draw the individual's demand curve (use of graph paper is essential
(c) What is the maximum quantity the individual can buy of commodity X per unit of time?
(d) What is the relationship between quantity demanded and price in the function \(Qd = f(P)\)?
(a) Completion of the demand schedule
Using \(Q_d = 12 - 2P\):
| Price, \(P\) | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|
| Quantity demanded, \(Q_d\) | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
For example, when \(P=4\), \(Q_d=12-2(4)=4\).
(b) Individual demand curve
Plot the points \((Q_d,P)\): \((0,6)\), \((2,5)\), \((4,4)\), \((6,3)\), \((8,2)\), \((10,1)\) and \((12,0)\), and join them with a straight line.
(c) The maximum quantity the individual can buy per unit of time is 12 units. This occurs when \(P=0\).
(d) Quantity demanded and price have an inverse relationship. As price rises, quantity demanded falls; as price falls, quantity demanded rises. In the function, every increase of 1 unit in price reduces quantity demanded by 2 units.
Answer Details
(a) Completion of the demand schedule
Using \(Q_d = 12 - 2P\):
| Price, \(P\) | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|
| Quantity demanded, \(Q_d\) | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
For example, when \(P=4\), \(Q_d=12-2(4)=4\).
(b) Individual demand curve
Plot the points \((Q_d,P)\): \((0,6)\), \((2,5)\), \((4,4)\), \((6,3)\), \((8,2)\), \((10,1)\) and \((12,0)\), and join them with a straight line.
(c) The maximum quantity the individual can buy per unit of time is 12 units. This occurs when \(P=0\).
(d) Quantity demanded and price have an inverse relationship. As price rises, quantity demanded falls; as price falls, quantity demanded rises. In the function, every increase of 1 unit in price reduces quantity demanded by 2 units.
Question 5 Report
Describe the contributions of natural resources to the economy of your country.
Natural resources are the free gifts of nature (minerals, land, forests, rivers, wildlife) available for production. In an economy such as Nigeria's they contribute in the following ways:
Thus natural resources support the economy through revenue, foreign exchange, employment, raw materials, energy and growth, provided they are efficiently exploited and the earnings well managed.
Answer Details
Natural resources are the free gifts of nature (minerals, land, forests, rivers, wildlife) available for production. In an economy such as Nigeria's they contribute in the following ways:
Thus natural resources support the economy through revenue, foreign exchange, employment, raw materials, energy and growth, provided they are efficiently exploited and the earnings well managed.
Question 6 Report
Distinguish between:
(a) Economic resources and non-economic resources.
(b) Want and Demand.
(c) Money Cost and Real Cost.
(a) Economic resources versus non-economic resources
(b) Want versus demand
(c) Money cost versus real cost
Answer Details
(a) Economic resources versus non-economic resources
(b) Want versus demand
(c) Money cost versus real cost
Question 7 Report
Explain the advantages and disadvantages of a joint stock company as a form of business organization.
A joint stock company is an incorporated business owned by shareholders who contribute capital by buying shares and enjoy limited liability. It has a separate legal personality from its owners.
Advantages:
Disadvantages:
Answer Details
A joint stock company is an incorporated business owned by shareholders who contribute capital by buying shares and enjoy limited liability. It has a separate legal personality from its owners.
Advantages:
Disadvantages:
Question 8 Report
What are the positive and negative effects of inflation on the economy?
Inflation is a persistent rise in the general price level. Its effects on the economy are both positive and negative.
Positive effects (usually of mild, creeping inflation):
Negative effects (especially of high or galloping inflation):
The overall verdict is that mild inflation may stimulate output, but severe or unpredictable inflation is damaging to saving, income distribution and external competitiveness.
Answer Details
Inflation is a persistent rise in the general price level. Its effects on the economy are both positive and negative.
Positive effects (usually of mild, creeping inflation):
Negative effects (especially of high or galloping inflation):
The overall verdict is that mild inflation may stimulate output, but severe or unpredictable inflation is damaging to saving, income distribution and external competitiveness.
Question 9 Report
(a) What is a customs union?
(b) State three advantages and two disadvantages of a customs union.
(a) A customs union is a form of economic integration in which member countries remove tariffs and other trade barriers on trade among themselves and, in addition, adopt a common external tariff against goods coming from non-member countries. It goes further than a free trade area, which only abolishes internal tariffs without a common external tariff.
(b) Three advantages:
Two disadvantages:
Answer Details
(a) A customs union is a form of economic integration in which member countries remove tariffs and other trade barriers on trade among themselves and, in addition, adopt a common external tariff against goods coming from non-member countries. It goes further than a free trade area, which only abolishes internal tariffs without a common external tariff.
(b) Three advantages:
Two disadvantages:
Question 10 Report
Why is the small scale trader important in West African countries?
The small-scale trader (petty trader, market woman, roadside seller) is very important in West African countries for several reasons:
In economies with widespread poverty, poor transport and large informal sectors, small-scale traders are the backbone of everyday distribution and a major source of income and employment.
Answer Details
The small-scale trader (petty trader, market woman, roadside seller) is very important in West African countries for several reasons:
In economies with widespread poverty, poor transport and large informal sectors, small-scale traders are the backbone of everyday distribution and a major source of income and employment.
Question 11 Report
The table below relates to the application of fertilizer to a fixed area of land and the production of maize. Use the table to answer the questions that follow.
| Tones of fertilizer Applied | Total production in Bags | Marginal product |
| 0 | 1,000 | - |
| 1 | 1,100 | 100 |
| 2 | 1,250 | 150 |
| 3 | 1,500 | 250 |
| 4 | - | 400 |
| 5 | - | 250 |
| 6 | - | 125 |
| 7 | 2,350 | - |
| 8 | 2,380 | - |
| 9 | 2,330 | - |
(a) What will be the total output of maize when no fertilizer is applied to the land?
(b) Calculate the total product after the application of the following quantities of fertilizer:
(i) 4 tonnes;
(ii) 5 tonnes;
(iii) 6 tonnes.
(c) Calculate the marginal product after the application of the following quantities of fertilizer:
(i) 7 tonnes;
(ii) 8 tonnes;
(iii) 9 tonnes.
(d) (i) After what level of the application of fertilizer does diminishing marginal returns occur?
(ii) After what level of fertilizer application will the total output decrease?
Total product (TP) and marginal product (MP) are linked by \(MP_n=TP_n-TP_{n-1}\), so \(TP_n=TP_{n-1}+MP_n\). Using this to fill the gaps:
| Fertilizer (tonnes) | Total Product (bags) | Marginal Product |
|---|---|---|
| 0 | 1,000 | - |
| 1 | 1,100 | 100 |
| 2 | 1,250 | 150 |
| 3 | 1,500 | 250 |
| 4 | 1,900 | 400 |
| 5 | 2,150 | 250 |
| 6 | 2,275 | 125 |
| 7 | 2,350 | 75 |
| 8 | 2,380 | 30 |
| 9 | 2,330 | -50 |
(a) With no fertilizer applied the total output is 1,000 bags.
(b) Total product: (i) at 4 tonnes, \(1{,}500+400=1{,}900\) bags; (ii) at 5 tonnes, \(1{,}900+250=2{,}150\) bags; (iii) at 6 tonnes, \(2{,}150+125=2{,}275\) bags.
(c) Marginal product: (i) at 7 tonnes, \(2{,}350-2{,}275=75\) bags; (ii) at 8 tonnes, \(2{,}380-2{,}350=30\) bags; (iii) at 9 tonnes, \(2{,}330-2{,}380=-50\) bags.
(d)(i) Marginal product rises up to 4 tonnes (MP = 400) and then falls, so diminishing marginal returns set in after the 4th tonne of fertilizer.
(d)(ii) Total output is highest at 8 tonnes (2,380 bags) and then falls, so total output begins to decrease after the 8th tonne of fertilizer.
Answer Details
Total product (TP) and marginal product (MP) are linked by \(MP_n=TP_n-TP_{n-1}\), so \(TP_n=TP_{n-1}+MP_n\). Using this to fill the gaps:
| Fertilizer (tonnes) | Total Product (bags) | Marginal Product |
|---|---|---|
| 0 | 1,000 | - |
| 1 | 1,100 | 100 |
| 2 | 1,250 | 150 |
| 3 | 1,500 | 250 |
| 4 | 1,900 | 400 |
| 5 | 2,150 | 250 |
| 6 | 2,275 | 125 |
| 7 | 2,350 | 75 |
| 8 | 2,380 | 30 |
| 9 | 2,330 | -50 |
(a) With no fertilizer applied the total output is 1,000 bags.
(b) Total product: (i) at 4 tonnes, \(1{,}500+400=1{,}900\) bags; (ii) at 5 tonnes, \(1{,}900+250=2{,}150\) bags; (iii) at 6 tonnes, \(2{,}150+125=2{,}275\) bags.
(c) Marginal product: (i) at 7 tonnes, \(2{,}350-2{,}275=75\) bags; (ii) at 8 tonnes, \(2{,}380-2{,}350=30\) bags; (iii) at 9 tonnes, \(2{,}330-2{,}380=-50\) bags.
(d)(i) Marginal product rises up to 4 tonnes (MP = 400) and then falls, so diminishing marginal returns set in after the 4th tonne of fertilizer.
(d)(ii) Total output is highest at 8 tonnes (2,380 bags) and then falls, so total output begins to decrease after the 8th tonne of fertilizer.
Question 12 Report
How can West African countries promote indigenous industries?
West African countries can promote (encourage the growth of) indigenous, locally owned industries through the following measures:
The reasoning is that local industries are usually young and weak, so deliberate government support in finance, protection, infrastructure and skills is needed until they can compete and contribute to output and employment.
Answer Details
West African countries can promote (encourage the growth of) indigenous, locally owned industries through the following measures:
The reasoning is that local industries are usually young and weak, so deliberate government support in finance, protection, infrastructure and skills is needed until they can compete and contribute to output and employment.
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