WAEC SSCE - Economics - 2009

The need for development planning arises largely from the fact that

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The need for development planning arises largely from the fact that productive resources are scarce relative to the demand for them. Development planning is the process of setting goals and strategies to achieve economic growth and development. Productive resources such as land, labor, and capital are limited, while the demand for goods and services is constantly increasing due to population growth and changing consumer preferences. Therefore, development planning is necessary to allocate resources efficiently and effectively, and to ensure that economic growth is sustainable and equitable. Without planning, there is a risk of resource misallocation, economic inefficiency, and social inequality.

which of the following is a condition necessary for a perfect market?

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A large number of buyers and sellers is a condition necessary for a perfect market. In a perfect market, there are no barriers to entry, and there is a large number of buyers and sellers. This means that no one buyer or seller has any significant control over the price of goods or services. As a result, buyers and sellers must compete with one another in order to get the best deal. This competition helps to ensure that the market operates efficiently, with prices reflecting the true value of goods and services. It also means that buyers and sellers are not able to easily influence the market, as there are too many players involved.

The interaction of supply and demands for labour determines

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The interaction of supply and demand for labor determines the wage rate that employers are willing to pay and the number of workers that are willing to work. If the demand for labor is high and the supply is low, then employers will need to offer higher wages to attract workers. On the other hand, if the supply of labor is high and the demand is low, then employers can offer lower wages because there are more workers available. The wage rate ultimately affects the production costs of businesses. If wages are high, then production costs will be higher, and this may result in higher prices for consumers. Alternatively, if wages are low, then businesses may have lower production costs, which can lead to higher profits. Overall, the interaction of supply and demand for labor is an essential factor that affects the wage rate, production costs, and ultimately, the profits of businesses.

choice is necessitated by

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Choice is necessitated by the scarcity of resources. Scarcity is the fundamental economic problem of having unlimited wants and needs in a world of limited resources. Because resources are limited, individuals, businesses, and societies must make choices about how to allocate those resources in the most efficient and effective way possible. For example, an individual may have to choose between buying a new car or saving for retirement, because they cannot afford to do both. A business may have to choose between expanding its product line or investing in new technology. A society may have to choose between investing in education or healthcare. In each case, the choices are necessitated by the scarcity of resources. Because resources are limited, we must make choices about how to allocate them in the most effective way possible to satisfy our unlimited wants and needs.

Use the information below to answer these questions

Depreciation = $40,000
Gross Domestic Product = $100,000
Factor Payments to Foreigners = $20,000
Factor Receipts from Abroad = $25,000
The Gross National Product is equal to

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The tax imposed on good manufacture within a country is

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The tax imposed on good manufacture within a country is an excise tax. An excise tax is a tax that is levied on specific goods produced or sold within a country. The tax is typically included in the price of the goods and is paid by the manufacturer or seller of the goods. The purpose of an excise tax is to raise revenue for the government, while also discouraging the production or consumption of certain goods that are considered harmful or undesirable. Examples of goods that are subject to excise taxes include alcohol, tobacco, gasoline, and firearms.

labour can be efficient when there are

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Labor can be efficient when there are adequate tools to work with. Efficiency in labor refers to the ability of workers to produce more output with less input, which leads to increased productivity. When workers have access to the appropriate tools and equipment needed to perform their tasks, they can perform their duties more quickly and effectively, resulting in increased efficiency. For example, if a construction worker has access to power tools and heavy machinery, they can complete a job more efficiently than if they were using hand tools. Similarly, if an office worker has access to a computer and appropriate software, they can complete their work more quickly and accurately than if they were using manual methods. On the other hand, if workers do not have access to adequate tools, their productivity may suffer, and they may have to work longer hours or exert more effort to complete the same tasks. This can lead to decreased efficiency and increased costs for employers. Therefore, providing workers with adequate tools and equipment is essential to ensure that labor is efficient.

what is the effect of pursuit of higher education on the size of labour force?

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The relationship between Marginal Product (MP) and Average Product (AP) is such that they are equal when

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The terms of trade is described as unfavourable when

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The terms of trade are described as unfavorable when the price of imports rises relative to those of exports. The terms of trade refer to the ratio between the prices of a country's exports and imports. When the prices of a country's exports increase relative to those of its imports, the terms of trade are said to be improving. However, when the prices of a country's imports increase relative to those of its exports, the terms of trade are said to be deteriorating or unfavorable. For instance, if a country exports $100 worth of goods and imports $200 worth of goods, it would need to export two times more goods to pay for the same amount of imports if the prices of its exports and imports remain constant. If the prices of its exports decline, then the country would need to export even more goods to pay for the same amount of imports. This makes it more difficult for the country to finance its imports, leading to a less favorable balance of trade. Therefore, when the price of imports rises relative to those of exports, the terms of trade are considered unfavorable.

The demand and supply function of a commodity are given as below.
Qd = 20 - 2p
Qs = 6p - 12
Where p = price in naira, Qd = Quantity demanded and Qs = Quantity supplied. The equilibrium price is

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The equilibrium price is the price at which the quantity demanded equals the quantity supplied. To find the equilibrium price, we need to set Qd equal to Qs and solve for p. Qd = Qs 20 - 2p = 6p - 12 20 + 12 = 6p + 2p 32 = 8p p = 4 Therefore, the equilibrium price is 4 Naira.

Depreciation = $40,000
Gross Domestic Product = $100,000
Factor Payments to Foreigners = $20,000
Factor Receipts from Abroad = $25,000

The National Income is equal to

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To calculate National Income, we can use the following formula: National Income = Gross Domestic Product (GDP) - Depreciation + Factor Receipts from Abroad - Factor Payments to Foreigners Plugging in the given values, we get: National Income = $100,000 - $40,000 + $25,000 - $20,000 National Income = $65,000 Therefore, the National Income is $65,000. Depreciation is subtracted from GDP because it represents the wear and tear on capital goods used in production. Factor payments to foreigners are payments made to foreign individuals and companies for factors of production such as labor and capital. Factor receipts from abroad are receipts earned by domestic individuals and companies for factors of production used abroad. These are added to or subtracted from GDP to arrive at the National Income, which is the income earned by domestic factors of production.

which of the following serves as a banker's bank?

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The Central Bank serves as a banker's bank. The Central Bank is the apex bank that regulates the banking system of a country. It acts as the banker to the government and all other banks operating within the country. One of its main functions is to ensure the stability of the financial system by regulating the money supply, controlling inflation, and acting as a lender of last resort to other banks. As a banker's bank, it provides financial services such as loans, deposits, and other financial facilities to other banks. It also supervises and regulates the activities of other banks and ensures that they operate within the legal framework and guidelines set by the regulatory authorities.

The main objective of setting up a private business organization is to

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The main objective of setting up a private business organization is to maximize profits. This means that the business is primarily concerned with generating as much revenue as possible while minimizing costs in order to earn the highest possible profit margin. Profit maximization allows the business to grow and expand, create more job opportunities, and reinvest in new technologies and infrastructure. While a private business may also pursue other objectives such as social responsibility or promoting exports, the ultimate goal is to generate profits and ensure the long-term sustainability of the organization.

Fiscal policy is associated with

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Fiscal policy is associated with taxation and government expenditure. It involves the use of government spending and taxation to influence the economy. Through fiscal policy, a government can increase or decrease its spending, and also increase or decrease taxes to achieve specific economic goals, such as reducing inflation, stimulating economic growth, or reducing unemployment. For example, a government can increase spending on infrastructure projects or social welfare programs to boost economic activity, or it can increase taxes to reduce inflation or fund public services. Thus, fiscal policy is an important tool for governments to manage the economy and achieve economic objectives.

The population density of town Y made up of 50 square kilometre land area and 100 million people is

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To find the population density, we divide the total population by the land area. Population density = Total population / Land area In this case, the total population is given as 100 million and the land area is given as 50 square kilometres. So, Population density = 100,000,000 / 50 Population density = 2,000,000 Therefore, the population density of town Y is 2 million people per square kilometre. The answer is option D.

One major aim of a cartel is to

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A major aim of a cartel is to regulate output through quota systems. Cartels are formed by producers of a particular commodity to gain control over the supply and price of the commodity. The aim is to limit competition and increase prices by collectively setting output quotas for member firms. By agreeing on output levels, the cartel members can control the supply of the commodity in the market, which can lead to higher prices and increased profits for the member firms. Therefore, the primary goal of a cartel is to regulate production and maintain high prices for the commodity.

When the price of a commodity increases and the quantity demanded also increases, this is a case of

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When the price of a commodity increases and the quantity demanded also increases, this is a case of exceptional demand. Exceptional demand is when the demand for a product increases despite an increase in price. This is because the product has become more desirable, and consumers are willing to pay more for it. This type of demand usually occurs for products that are considered to be luxury goods, such as high-end fashion items or luxury cars. As the price of these items increases, they become more desirable to consumers who view them as a status symbol. In contrast, normal demand is when the quantity demanded decreases as the price increases. This is the typical relationship between price and demand, as consumers are usually more price-sensitive for everyday items. Overall, exceptional demand occurs when consumers are willing to pay more for a product because they perceive it to be more valuable or desirable, even though the price has increased.

Government fixing of prices below the equilibrium point is aimed at protecting the

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Government fixing of prices below the equilibrium point is aimed at protecting the consumers. When the government sets prices below the equilibrium point, it makes goods and services more affordable for consumers. This is particularly important for essential goods, such as food and medicine, that people need to live. By keeping prices low, the government can help ensure that everyone has access to these basic necessities. However, this policy may lead to shortages, as suppliers may not be willing or able to produce and sell goods at prices lower than their cost of production.

Government expenditure on the construction of roads and bridges is

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Government expenditure on the construction of roads and bridges is capital expenditure. Capital expenditures are expenses made by a company or government to acquire, improve, or maintain physical assets, such as buildings, machinery, or infrastructure. In the case of roads and bridges, the government is investing in the creation of new physical assets that will benefit the public for years to come. These assets are considered to have a long-term value and will contribute to economic growth and development. In contrast, recurrent expenditures are ongoing expenses, such as salaries, utilities, and maintenance costs, that are necessary to keep an organization running but do not create any new physical assets. Supplementary expenditures are additional expenses made to cover unexpected or emergency situations, while variable expenditures are expenses that vary based on the level of output or activity. Therefore, since the construction of roads and bridges is a long-term investment in physical assets, it is considered capital expenditure for the government.

An economic system where the central planning authority determines what goods to produce and in what quantity is known as

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A socialist economy is an economic system where the central planning authority determines what goods to produce and in what quantity. In a socialist economy, the means of production are owned by the state or by the workers collectively. The state decides what goods and services are needed, how much to produce, and how to distribute them. Prices are set by the state, and there is little or no competition between producers. The aim of a socialist economy is to provide for the needs of all members of society, with a focus on meeting basic needs rather than on generating profit.

If a fall in price of one commodity leads to an increase supply of another commodity, both commodities have

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» the study of economics becomes necessary because of the

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The study of economics becomes necessary because of the scarcity of resources. Scarcity means that there are limited resources, such as land, labor, and capital, but unlimited wants and needs of people. Therefore, we need to make choices and allocate resources efficiently to satisfy our needs and wants. Economics is the study of how societies allocate scarce resources among competing uses. It helps us to understand how individuals, businesses, governments, and other organizations make decisions about what goods and services to produce, how to produce them, and who gets to consume them. By studying economics, we can learn how to use our limited resources in the most efficient way possible and maximize our well-being.

One advantage of a sole proprietor is that

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One advantage of a sole proprietor is that it can be managed without conflicts. A sole proprietorship is a type of business in which one person owns and operates the entire business. Since there is only one owner, the business can be managed in a streamlined manner without any conflicts that may arise from multiple owners with differing opinions or goals. This means that the owner can make decisions quickly and efficiently, without the need for lengthy discussions or negotiations. In contrast, in a partnership or corporation, multiple owners may have different ideas about how to run the business or may have conflicting interests. This can lead to disagreements and conflicts that can slow down the decision-making process and make it difficult to implement changes. Therefore, one advantage of a sole proprietorship is that it allows for efficient management without conflicts, which can help the business to be more agile and responsive to changes in the market.

In a capitalist economy, resources are

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In a capitalist economy, resources are privately owned. This means that individuals, businesses, or organizations own and control the resources such as land, labor, and capital. The ownership of resources is a fundamental aspect of capitalism, and it allows individuals to make decisions about how to use these resources to produce goods and services that can be sold for profit. In a capitalist economy, the government's role is typically limited to regulating the market and enforcing property rights, rather than owning or controlling resources.

A consumer maximizes his utility in consuming a good 'X' when

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A consumer maximizes their utility in consuming a good 'X' when the marginal utility of the last unit consumed (Mux) is equal to the price of the good (Px). In other words, the consumer will continue to purchase units of the good 'X' until the additional satisfaction received from consuming another unit (Mux) is no longer greater than the price they pay for that unit (Px). This is because if the price of the good is greater than the satisfaction received from consuming it, the consumer would be better off spending their money on something else that gives them more satisfaction per unit of money spent. Alternatively, if the price of the good falls, the consumer is more likely to continue purchasing more units until the Mux equals the new, lower price. On the other hand, if the Mux is greater than the price, the consumer would benefit from consuming more units of the good.

The concept of opportunity cost is also referred to as

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The concept of opportunity cost is also referred to as the "real cost." Opportunity cost refers to the cost of choosing one option over another, which includes the benefits forgone from the next best alternative. In other words, it is the value of the best alternative foregone. It is called the "real cost" because it is a more accurate reflection of the true cost of a decision, rather than just the monetary cost.

Expenditure by foreign tourist in a country will be recorded as

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Expenditure by foreign tourists in a country will be recorded as visible exports. Visible exports refer to physical goods that are produced in one country and sold to another country. However, when foreign tourists visit a country and spend money on goods and services, their expenditures are also recorded as visible exports. This is because the money spent by foreign tourists is considered an inflow of money into the country's economy, and it contributes to the country's gross domestic product (GDP). The more money spent by foreign tourists in a country, the higher the visible exports will be, which can have a positive impact on the country's economy. Examples of visible exports in the tourism industry include purchases of hotel accommodations, food and beverages, souvenirs, transportation services, and entertainment activities. Overall, visible exports reflect the value of goods and services produced in a country that are sold to other countries, including the expenditures made by foreign tourists within the country.

the economic system which relies mainly on the price mechanism for the allocation of scarce resources is known as

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The economic system which relies mainly on the price mechanism for the allocation of scarce resources is known as a market or capitalist economic system. In this system, prices are determined by the interaction of supply and demand forces in the market. Producers supply goods and services based on the prices that consumers are willing to pay for them, and consumers allocate their limited resources to the goods and services that provide them with the highest satisfaction or utility. The role of the government in this system is limited, and it generally only intervenes to ensure that markets function properly and to protect property rights.

In the short-run commodity X and commodity Y are supplied jointly, which of the following is correct?

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manufacturing involves the process of

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Manufacturing involves the process of changing raw materials or components into finished products that are ready to be sold or used by consumers. This process may involve several steps, such as designing, planning, sourcing raw materials, assembling or processing the materials, and quality control. The end goal is to create a finished product that is of high quality, meets consumer demand, and generates revenue for the manufacturer. Therefore, the correct option is "changing items to new states."

which of the following is specialized in lending money for the purpose of developing real estate?

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The institution that is specialized in lending money for the purpose of developing real estate is a "mortgage bank". A mortgage bank provides loans specifically for real estate purchases, construction, and development. These loans are secured by the property itself, which means that the property serves as collateral for the loan. Mortgage banks usually have longer loan terms and offer lower interest rates compared to commercial banks, as their business is solely focused on real estate lending.

A market in which a single price obtains for a product is known as

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A market in which a single price obtains for a product is known as a perfect market. In a perfect market, there are many buyers and sellers, and all participants have access to the same information about the price and quality of the product being sold. No single buyer or seller has enough market power to influence the price, and all transactions are conducted at the prevailing market price. In a perfect market, there are no barriers to entry or exit, meaning that new sellers can enter the market and compete freely with existing sellers, and existing sellers can leave the market if they wish. As a result, prices in a perfect market are determined solely by supply and demand forces, with no interference from outside factors. Overall, a perfect market is considered an ideal market structure in which resources are allocated efficiently, and both buyers and sellers can benefit from the competition and transparency that exist in the market.

Terms of trade may be define as the

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Terms of trade may be defined as the rate at which one country's exports exchange for imports from another country. In other words, terms of trade represent the ratio of export prices to import prices. A country with favorable terms of trade is able to sell its exports at a higher price than it pays for its imports. This means that the country is able to obtain more imports for each unit of its exports. The terms of trade are important because they affect a country's ability to pay for its imports and to finance its economic development. If a country's terms of trade are unfavorable, it will have to export more goods to pay for the same amount of imports. This can be a drag on the country's economic growth and development. Therefore, a country's terms of trade are an important economic indicator that can help policymakers understand the health of the country's economy and make decisions about trade policy.

which of the following sector is most capital intensive?

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Petroleum is the most capital-intensive sector among the given options. This is because the production and refining of petroleum require large amounts of capital investment in equipment, technology, and infrastructure. Additionally, the exploration and drilling of oil wells are very costly, which contributes to the high capital intensity of the sector. In contrast, sectors such as commerce, tourism, and insurance typically require less capital investment to start and operate a business.

Economic development is reflected in the

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Economic development is reflected in the increase in productive capacity. Economic development refers to the process by which an economy improves the standard of living of its people through the increase in the production and consumption of goods and services. Productive capacity, which refers to the ability of an economy to produce goods and services, is a key indicator of economic development. As an economy develops, it is able to increase its productive capacity through the development of its infrastructure, the expansion of its industries, and the improvement of its technology and human capital. This, in turn, leads to an increase in the quantity and quality of goods and services produced, which contributes to the overall improvement in the standard of living of the people in the economy. Therefore, an increase in productive capacity is a key reflection of economic development.

The five countries that established the Organization of Petroleum Exporting Countries (OPEC) are

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The five countries that established the Organization of Petroleum Exporting Countries (OPEC) are Kuwait, Venezuela, Iran, Iraq, and Saudi Arabia. OPEC is an international organization that was founded in 1960 to coordinate the petroleum policies of its member countries and to provide a platform for oil-producing nations to negotiate with oil-consuming countries. These five founding members established OPEC with the aim of controlling the price and supply of oil in the global market. Over the years, other countries have joined OPEC, and the organization has become a powerful force in the global oil industry. As of 2021, OPEC has 13 member countries, which collectively control more than 40% of the world's oil production and around 73% of the world's "proven" oil reserves.

who among the following is the intermediary between the producer and the retailer?

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The intermediary between the producer and the retailer is the wholesaler. A wholesaler is a type of intermediary who buys goods in bulk from the manufacturer or producer and sells them in smaller quantities to retailers or other businesses. The wholesaler helps bridge the gap between the producer and the retailer by providing a distribution channel for goods, enabling the producer to reach a larger market. Wholesalers typically purchase goods from producers in large quantities and then store them in a warehouse before selling them to retailers or other businesses. They may also provide other services such as transportation, packaging, and financing. In summary, a wholesaler acts as an intermediary between the producer and the retailer by purchasing goods in bulk from the producer and selling them in smaller quantities to retailers or other businesses.

All the following are features of market economies except

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A market economy is an economic system where the production and distribution of goods and services are determined by the interactions of buyers and sellers in a market. The features of a market economy include competition among producers, the forces of demand and supply guiding production decisions, and the paramountcy of profit motive. Therefore, public ownership of capital is not a feature of market economies as the private sector owns and controls capital in this system.

At a co-efficient of price elasticity of supply of 0.5, supply is

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At a co-efficient of price elasticity of supply of 0.5, supply is said to be inelastic. This means that a change in price will have a relatively smaller effect on the quantity supplied. In other words, if the price of a product increases by a certain percentage, the quantity supplied will only increase by a smaller percentage. If the price of a product decreases by a certain percentage, the quantity supplied will only decrease by a smaller percentage. An inelastic supply curve is relatively steep, indicating that the quantity supplied does not respond much to changes in price.

The marketing of government security by the Central Bank is termed

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The marketing of government security by the Central Bank is termed as open market operation. Open market operations refer to the buying and selling of government securities by the central bank in the open market. The main objective of this operation is to influence the money supply in the economy. When the central bank wants to increase the money supply, it purchases government securities from banks and other financial institutions, which increases the cash reserves of these institutions. This, in turn, allows the banks to lend more money to businesses and individuals, increasing the overall money supply in the economy. On the other hand, when the central bank wants to decrease the money supply, it sells government securities to banks and other financial institutions, decreasing their cash reserves and reducing the amount of money available for lending. By using open market operations, the central bank can control the money supply in the economy and influence interest rates, which can have a significant impact on economic activity.

Depreciation = $40,000
Gross Domestic Product = $100,000
Factor Payments to Foreigners = $20,000
Factor Receipts from Abroad = $25,000

The Net Domestic Product is

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Net Domestic Product (NDP) can be calculated by subtracting Depreciation from Gross Domestic Product (GDP). NDP = GDP - Depreciation NDP = $100,000 - $40,000 = $60,000 Therefore, the answer is $60,000.

A society that operates below the production possibility curve is using its productive resources

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A production possibility curve (PPC) represents the maximum combinations of two goods that a society can produce with its available resources and technology. If a society is operating below the PPC, it means that it is not utilizing its productive resources efficiently or optimally. In other words, it is producing less than what it is capable of producing. This could be due to various factors, such as unemployment, underutilization of resources, lack of investment in technology or education, or inefficient allocation of resources. Therefore, a society that operates below the production possibility curve is using its productive resources inefficiently.

The headquarters of the African Development Bank (ADB) was originally located at

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The headquarters of the African Development Bank (ADB) was originally located in Abidjan, Côte d'Ivoire. The African Development Bank is a regional multilateral development bank that was founded in 1964 to promote economic and social development in Africa. It provides financial and technical assistance to African countries in support of development projects and programs. At its founding, the ADB's headquarters was established in Abidjan, Côte d'Ivoire, which was also the location of its first Annual Meeting of the Board of Governors. The headquarters remained in Abidjan until 2003 when political instability in Côte d'Ivoire forced the bank to temporarily relocate its headquarters to Tunis, Tunisia. In 2014, the ADB officially returned its headquarters to Abidjan, where it remains to this day. The bank's return to Abidjan was seen as a symbol of the country's return to stability and a recognition of its important role in promoting development in Africa.

If an increase in earning leads to more of of a commodity being demanded, the good is said to have

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If an increase in earnings leads to more of a commodity being demanded, the good is said to have positive income elasticity. Income elasticity of demand measures the responsiveness of the quantity demanded of a good to a change in income. When the income elasticity of demand for a good is positive, it means that as consumers' income increases, they demand more of the good. This indicates that the good is a normal good, meaning that it is a good for which demand increases as income increases. On the other hand, when the income elasticity of demand for a good is negative, it means that as consumers' income increases, they demand less of the good. This indicates that the good is an inferior good, meaning that it is a good for which demand decreases as income increases. Therefore, if an increase in earnings leads to more of a commodity being demanded, it indicates that the commodity is a normal good and has positive income elasticity.

which of these is true of a perfect competitor?

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A perfect competitor is a hypothetical market structure where no individual participant can influence the market price of a product. Therefore, the market price (P) is equal to the marginal revenue (MR) and average revenue (AR) of the product. So, the correct statement is "P = AR = MR." This means that the price that a seller receives for a unit of their product (P) is equal to both the total revenue received (AR) and the additional revenue gained from selling one more unit (MR).

The type of demand that exist between torchlight and battery is

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The type of demand that exists between a torchlight and a battery is complementary demand. This is because the demand for torchlight and batteries are related to each other, and one product (the battery) is needed to use the other product (the torchlight). In other words, the demand for batteries is directly related to the demand for torchlights, and vice versa. If there is an increase in demand for torchlights, there will likely be a corresponding increase in demand for batteries to power those torchlights. Similarly, if there is a decrease in demand for batteries, there will likely be a decrease in demand for torchlights, as they will not be able to function without a power source. Therefore, torchlights and batteries are considered complementary goods that are often used together.

disposable income is total income

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Disposable income is not the same as total income. Disposable income is the amount of income that an individual or household has left after paying all taxes and other mandatory deductions from their gross income. It is the income that is available for spending, saving or investing. In other words, disposable income is calculated by subtracting all taxes and other mandatory deductions, such as social security contributions or health insurance premiums, from the total income. For example, if an individual earns a gross income of $50,000 in a year and pays $10,000 in taxes and other mandatory deductions, their disposable income would be $40,000 ($50,000 - $10,000). Therefore, the correct answer is option (A) less tax, as disposable income is the total income after all taxes and other mandatory deductions have been subtracted from the gross income.

What accounts for the ‘U-shaped’ of the short run average cost (AC) curve?

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The 'U-shaped' of the short run average cost (AC) curve is due to the law of variable proportions. The law of variable proportions, also known as the law of diminishing marginal returns, states that as more and more units of a variable input are added to a fixed input, the marginal product of the variable input will eventually decrease. In the short run, at the beginning of the production process, as more variable inputs are added, the marginal product of these inputs will increase. As a result, the average cost of production will decrease, since the total cost will be spread over a greater output. This is the downward-sloping portion of the 'U-shaped' AC curve. However, at a certain point, adding more variable inputs will lead to diminishing marginal returns. This means that the marginal product of the additional variable inputs will start to decrease, causing the average cost of production to increase. This is the upward-sloping portion of the 'U-shaped' AC curve. At the minimum point of the 'U-shaped' AC curve, the marginal product of the variable input is equal to the average product, and the average cost is at its minimum. Beyond this point, the marginal product of the variable input continues to decrease, causing the average cost to increase. In summary, the 'U-shaped' of the short run average cost (AC) curve is due to the law of variable proportions, which causes the average cost of production to decrease at first as more variable inputs are added, and then increase as the marginal product of the variable input diminishes.

A type of unemployment which occurs due to technological progress is called

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The table below shows the natural growth gowth rate of the population of country N over a period of time. Use the information contained in the table to answer the following questions. 
 

(a) Determine L. P, Q, R, S and T. [6 marks] 
(b) With the use of a bar chart, graphically present the changes in the natural growth rate over the years. (Use of graph sheet is essential) [8 marks] 
(c) Outline any three reasons for changes in birth rate. [6 marks] 

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(a) Why is scarcity a fundamental problem in Economics? [6 marks] 
(b) Give a reason on why Economics is a (i) science; (ii) social science [3 marks each] 
(c) How do governments solve the problem of scarcity? [8 marks

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(a) What is a capital market? [5 marks] 
(b) Describe any three instruments used in the capital market. [15 marks] 

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(a) What is (i) devaluation: (ii) depreciation of currency? [4 marks each] 
(b) Outline three measures that can be adopted to correct balance of payments deficit [12 marks] 

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A village consists of twenty (20) households with the following annual incomes-
(Incomes $00) 30 20 50 40 60 40 40 50 20 60 80 40 20 20 70 40 70 30 40 80 
(a) Determine the (i) mean income: [4 marks] (ii) modal income; [ 2 marks] (iii) median income. [2 marks] 
(b) What is the range of income distribution? [2 marks] 
(c) Calculate the total tax that could be generated from the village if (i) a flat rate tax of 7% is imposed on all households; [5 marks] (ii) a flat rate tax of 15% is imposed on all households earning $4,000 per annum and above. [5 marks] 

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(a) With examples. distinguish between direct and indirect tax, [8 marks] 
(b) Explain any four problems of tax collection in any West African country. [12 marks] 

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(a) Define labour [4 marks]
(b) Give four factors that affect the efficiency of labour in your country. [16 marks]

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(a) With the aid of a diagram, explain the effects of fixing a price (i) above the equilibrium price, 
(ii) below the equilibrium price [5 marks each]
(b) (i) What is an abnormal demand? [4 marks] (ii) Give two reasons for its occurrence [6 marks] 
 

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(a) Outline the chain of distribution for manufactured consumer goods. [4marks] 
(b) Explain the functions of the (i) wholesaler; (ii) retailer. [8 marks each] 

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Explain any five objectives of the Economic Community of West African States (ECOWAS). [20 marks] 

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(a) Distinguish between the following pairs of cost concepts. 
    (i) Fixed cost and variable cost. (ii) Real cost and money cost 
   (iii) Implicit cost and explicit cost. [5 marks each]

(b) (I) What would you recommend to a firm whose average cost is greater than its price? [2 marks] 
(ii) Give a reason for your answer In (b)(i) above. [3 marks] 

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 Give five reasons for the continued existence of the Organization of Petroleum Exporting Countries (OPEC). [20 marks] 

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