JAMB UTME - Economics - 2022

Which of the following factors is not a cause of diminishing returns?

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The factor that is not a cause of diminishing returns is "Technological innovations". Diminishing returns refers to the decrease in marginal output or production as more units of a variable input (such as labor or capital) are added to a fixed amount of other inputs (such as land or machinery). This occurs because the fixed inputs become increasingly scarce relative to the variable inputs, which can lead to inefficiencies and reduced productivity. The other three factors listed - an increase in variable inputs, land fragmentation, and constant technology - can all contribute to diminishing returns. For example, adding more workers to a fixed amount of land may lead to overcrowding and reduced productivity (land fragmentation). Similarly, if technology remains constant while more inputs are added, the additional inputs may not be fully utilized and may even become redundant. In contrast, technological innovations can actually help to overcome diminishing returns by allowing for more efficient use of inputs and increasing productivity. New technologies can improve the efficiency of production processes, reduce waste, and create new products or services, all of which can lead to increased output and economic growth.

What type of price elasticity of demand is the diagram above representing?

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Developments outside a given firm that reduce the firm’s costs are called

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Developments outside a given firm that reduce the firm's costs are called "external economies." External economies refer to the benefits that firms receive from positive externalities generated by other firms or industries in the same geographic area. For example, if a new technology park is established nearby, the firms in the area may benefit from lower input costs, better transportation links, or access to skilled workers. These benefits can result in lower production costs, higher productivity, and improved competitiveness for the firms in the area. The opposite of external economies is external diseconomies, which occur when external factors increase the costs of production for firms in a particular area.

In a pie chart, the population of a city is represented by 45. If the country has a population of 10 million people, then the city's population is?

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To solve this problem, we need to first understand what a pie chart is and how it works. A pie chart is a circular graph that is divided into sectors, with each sector representing a proportion of the whole. The size of each sector is proportional to the quantity it represents, so we can use it to determine the percentage or fraction of the whole that each quantity represents.

In this case, the city's population is represented by 45 degrees of the pie chart. If we assume that the pie chart represents the entire country's population, which is 10 million people, then the fraction of the country's population represented by the city is:

45 degrees / 360 degrees = 1/8

This means that the city's population is 1/8 of the entire country's population. To find out the actual population of the city, we can multiply the fraction by the total population:

(1/8) x 10 million = 1.25 million

Therefore, the correct answer is 1.25 million.

A price floor is usually fixed

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A price floor is typically set above the equilibrium price, and it creates a surplus of goods or services. When the price is set above the equilibrium level, it causes suppliers to offer more products than buyers are willing to purchase at that higher price. This leads to a surplus, where there are more goods available than there are buyers willing to buy them. Therefore, a price floor usually causes surpluses, and not shortages.

The type of unemployment found among workers who leave their jobs in search of other jobs is termed

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The type of unemployment found among workers who leave their jobs in search of other jobs is called frictional unemployment. This occurs when individuals are between jobs and are actively searching for new employment opportunities. Frictional unemployment is typically short-term and is a natural part of the job search process. It can occur due to various reasons such as workers seeking better job opportunities, moving to a new location, or recently graduating from school. Although frictional unemployment may be a temporary situation for individuals, it can have an impact on the economy if the time taken to find a new job is prolonged. However, it is generally seen as a less problematic form of unemployment than other types, such as structural or cyclical unemployment, which can have more severe and long-lasting effects on the economy.

If a demand curve that intersects a perfectly inelastic supply shifts rightward, then

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If a demand curve that intersects a perfectly inelastic supply shifts rightward, the equilibrium price will increase, but the quantity supplied will remain the same. In this scenario, a shift in the demand curve to the right indicates that there is an increase in demand for the product at every price level, leading to a new equilibrium price and quantity. However, the supply is perfectly inelastic, meaning that the quantity supplied cannot increase to meet the new demand. Therefore, the equilibrium quantity remains the same, while the equilibrium price increases. So, only the price will increase in this scenario.

Marginal cost is?

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Marginal cost refers to the cost of producing one additional unit of a good or service. It is the cost of producing the last or extra unit of output. This cost includes the variable costs of producing the additional unit, such as the cost of materials and labor, but it does not include fixed costs like rent or salaries, which do not change with the level of production. The concept of marginal cost is important in economics because it helps businesses and policymakers make decisions about how much to produce, what price to set for their goods or services, and whether to enter or exit a market. By analyzing their marginal costs, businesses can determine whether producing an additional unit of a good will be profitable or not.

If at 10K per kg, 1000kg of yam were purchased, the resultant point elasticity of demand is

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A situation in which all inputs are doubled and output also doubles is known as

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The situation in which all inputs are doubled and the output also doubles is known as "constant returns to scale." This means that if a firm increases all of its inputs by a certain proportion, the output will also increase by the same proportion. In other words, the production function exhibits constant returns to scale if increasing all inputs by a constant factor results in an output increase by the same constant factor.

Which of the following forms of economic integration is a member nation free to impose duty against non-members

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A free trade area is a form of economic integration where member nations agree to eliminate tariffs and trade barriers on goods and services traded among themselves. However, each member nation is still free to impose duties against non-member nations. In other words, members have a free trade agreement with each other, but they can still have their own trade policies towards non-members. In contrast, a customs union is an advanced form of a free trade area where member nations not only eliminate tariffs among themselves, but they also agree to have a common external tariff towards non-member nations. This means that all goods entering the customs union must pay the same tariffs, regardless of which member nation they are entering. A common market is a further step towards integration, where not only goods, but also factors of production such as capital and labor can freely move among member nations. This allows for a more integrated and efficient market, but it also means that member nations have less control over their trade policies. An economic community is a broader form of integration, where member nations agree to coordinate and harmonize their economic policies in a wide range of areas, including trade, monetary policy, and fiscal policy. This is the most advanced form of integration, as it involves a high degree of cooperation and coordination among member nations.

Positive check as envisaged by Thomas Malthus can be prevented if

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Thomas Malthus proposed the concept of a positive check, which refers to a population control mechanism in which natural disasters, disease, and famine limit the population growth. However, positive checks are not desirable as they lead to high levels of human suffering. To prevent positive checks, it is necessary to implement measures that help to control population growth while maintaining the well-being of individuals. One way to achieve this is by reducing the death rate through improved healthcare, better nutrition, and access to safe water and sanitation. Another approach is to promote moral restraint, which involves encouraging individuals to delay marriage and childbearing until they are economically stable and can provide for their children. Additionally, building more hospitals can help to improve access to healthcare, which can contribute to reducing the death rate and improving overall health outcomes. Natural calamities, on the other hand, can lead to positive checks, and as such, they are not a desirable solution for preventing population growth. Instead, efforts should focus on implementing sustainable population control measures that promote economic development, education, and access to healthcare, while also protecting the environment.

Cooperative societies are formed mainly to

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Cooperative societies are primarily formed to promote and maintain the welfare of their members. This means that the members of a cooperative society come together to work towards achieving common goals that benefit everyone in the society. Cooperative societies are usually formed by a group of individuals who share a common interest, such as farming, housing, or credit. By working together, members can access resources that they may not have been able to on their own, such as bulk purchasing of materials, access to credit, or sharing of knowledge and skills. In a cooperative society, the focus is not on maximizing profits for individual members, but rather on achieving benefits that are shared by the entire group. By working together, members can create a sustainable and mutually beneficial organization that can help to address the needs of the community. Therefore, the main purpose of cooperative societies is to promote the welfare of members by providing a platform for collective action and collaboration.

In manufacturing, division of labour may be hindered by

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The distinction between capital and recurrent expenditure lies in the

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A disadvantage of a jont-stock company is

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A disadvantage of a joint-stock company is limited control in management by shareholders. In a joint-stock company, shareholders own a portion of the company and can make money by selling their shares for a profit or receiving dividends. However, shareholders do not typically have direct control over the day-to-day management of the company. Instead, a board of directors and executive management team make decisions on behalf of the company. This lack of control in management can be seen as a disadvantage for shareholders who may have different ideas about how the company should be run or who may not agree with the decisions made by the board or executive management team. Additionally, shareholders may not be able to influence the direction of the company as much as they would like. Overall, while joint-stock companies offer benefits such as limited liability for shareholders, this disadvantage in control over management may be a concern for some investors.

An exceptional demand curve can result from

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An exceptional demand curve can result from an expectation of future price increase. When people think that the price of a good or service is going to increase in the future, they may start buying more of it now in order to avoid paying the higher price later. This increase in demand can cause the price of the good or service to go up in the present, creating an exceptional demand curve that deviates from the typical downward-sloping demand curve. The other factors, such as an increase in the price of raw materials, increase in the size of the population, or change in taste of consumers, can also impact the demand for a good or service, but an expectation of future price increase is a unique factor that can result in an exceptional demand curve.

PN equals average revenue or marginal revenue cure of

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In a free market economy, the rationing of scarce goods is done principally by?

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In a free market economy, the rationing of scarce goods is principally done by the price mechanism. The price of a good is determined by the forces of supply and demand in the market. When the supply of a good is limited and demand for it is high, the price of that good will increase. This higher price will serve as an incentive for producers to increase their supply of the good, and for consumers to reduce their demand for it. As a result, the scarce good will be rationed among consumers based on their willingness to pay the higher price. This process occurs naturally without the need for government intervention or control, and is a key feature of a free market economy.

In the long run, all production factors are

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In the long run, all production factors are "variable." This means that in the long run, a firm can adjust all of its production inputs, including labor, capital, and technology, to change the scale of its operations. In the short run, some inputs may be fixed, such as the size of the factory, which can only be changed in the long run. But in the long run, all inputs can be varied to optimize production and increase efficiency. The ability to adjust all inputs in the long run is what distinguishes the long run from the short run in the theory of production.

In the long-run, a firm must shut down if its average revenue is

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In the long-run, a firm should shut down if its average revenue is less than its average cost. This is because, in the long-run, all costs are considered variable, meaning the firm can adjust its production and input levels. If the firm continues to operate despite having average revenue less than average cost, it will continue to incur losses. To understand this concept, it's essential to know what the average revenue and average cost mean. Average revenue is the total revenue earned by a firm divided by the quantity of output produced. On the other hand, average cost is the total cost incurred by a firm divided by the quantity of output produced. The average cost can further be divided into two categories: average variable cost and average fixed cost. The average variable cost is the cost that varies with the level of output, such as labor and raw material costs. In contrast, the average fixed cost is the cost that remains constant regardless of the level of output, such as rent and salaries. So, in the long-run, a firm must shut down if its average revenue is less than its average cost because it means that the firm is not generating enough revenue to cover all its variable and fixed costs. By shutting down, the firm can avoid further losses and redirect its resources elsewhere. On the other hand, if the firm's average revenue is greater than its average cost, it can continue to operate and earn profits.

The figure above shows change in demand for commodity x which is a normal good. Use it to answer the questions that follows

Which of the following caused the change in demand from D0 D0 to D2 D2?

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A made obstacle to economic development is

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A major obstacle to economic development is low farm productivity. Agriculture is a significant sector in many developing countries, and low farm productivity can have a significant impact on economic growth and development. Low productivity in agriculture can result from a range of factors, including inadequate access to credit, poor infrastructure, low-quality inputs, and limited knowledge of modern farming techniques. This can limit the production of food and raw materials for industrial processes, resulting in higher prices, reduced exports, and lower economic growth. Increasing farm productivity is often a key focus of development programs and policies aimed at promoting economic development in developing countries.

An important factor hindering the rapid development of the industrial sector in Nigeria.

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An important factor hindering the rapid development of the industrial sector in Nigeria is inadequate infrastructure facilities. This includes factors such as inadequate transportation systems, unreliable electricity supply, poor communication networks, and insufficient access to water and sanitation facilities. These factors can increase the cost of production, reduce productivity and efficiency, and make it difficult for industries to compete with other countries. The dominance of the oil sector has also been a significant factor, as it has led to a neglect of other sectors, including manufacturing and industry. Excessive demand for finished products and rural-urban migration may have some impact on industrial development but are not as significant as inadequate infrastructure and the dominance of the oil sector.

A downward sloping demand curve means that

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A downward sloping demand curve means that as the price of a good decreases, the quantity demanded of that good increases. In other words, there is an inverse relationship between the price of a good and the quantity of that good demanded by consumers. This is the fundamental law of demand in economics.

As the price of a good decreases, consumers are more willing and able to purchase it, which leads to a higher quantity demanded. Conversely, as the price of a good increases, consumers are less willing and able to purchase it, which leads to a lower quantity demanded.

Therefore, the correct answer is - price must be lowered to sell more of the good. Total revenue may increase or decrease as the price changes depending on the magnitude of the change in price and quantity demanded.

Privatization and commercialization of public enterprises in Nigeria is necessitated by

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The privatization and commercialization of public enterprises in Nigeria is necessitated by their operational inefficiency. Public enterprises in Nigeria, like in many other countries, have often been criticized for poor management, corruption, and inefficiency, which have resulted in heavy financial losses for the government. Privatization and commercialization are seen as a way to introduce more competition, increase efficiency, and reduce the financial burden on the government. While the IMF and the World Bank have encouraged privatization in many countries as a condition for receiving loans, in Nigeria, the privatization and commercialization policies were largely driven by domestic factors, including the need to improve the performance of public enterprises.

Wholesalers play an important in the distribution of goods and services because they

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Wholesalers play an important role in the distribution of goods and services because they act as intermediaries between producers and retailers. Wholesalers buy goods in large quantities from producers and then sell them in smaller quantities to retailers. This enables producers to focus on their production process without worrying about marketing and distribution. On the other hand, retailers can buy smaller quantities of goods from wholesalers, which allows them to stock a variety of products without having to buy in bulk. Wholesalers also provide other important services, such as financing and logistics. They may provide credit to both producers and retailers, allowing them to manage their cash flow and invest in their businesses. Additionally, wholesalers can handle the transportation and storage of goods, which can be a complex and expensive task for smaller businesses. Therefore, wholesalers play a crucial role in the distribution process, providing valuable services and enabling the smooth flow of goods and services from producers to retailers, and ultimately to consumers.

The International Bank for Reconstruction and Development(IBRD) performs the following functions except-------

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The International Bank for Reconstruction and Development (IBRD) is a specialized agency of the United Nations that provides loans, technical assistance, and other services to developing countries. Out of the options provided, the IBRD does not reduce tariffs among its members. Its main focus is on granting long-term loans to member countries for development projects, providing technical expertise to help those countries implement those projects successfully, and developing human resources in those countries. Tariff reduction is not one of its main functions.

The effect of changes in the condition of demand on a demand schedule with the price constant is a

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The effect of changes in the condition of demand on a demand schedule with the price constant is a shift of the demand curve. When there is a change in any factor that affects the quantity demanded at each price level, such as income, tastes and preferences, prices of related goods, or population, the entire demand curve shifts to a new position. This means that at each price level, the quantity demanded changes, leading to a new demand schedule. A movement along the demand curve occurs when there is a change in price, leading to a change in quantity demanded, while the other factors remain constant. Deflation or hyperbola formation are not terms typically used to describe changes in demand.

The demand curve for goods of ostentation is usually

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A major characteristic of natural resources is they

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A major characteristic of natural resources is that they are free gifts of nature. This means that they are not produced by humans, but are found naturally in the environment. Examples of natural resources include water, air, forests, minerals, and fossil fuels. However, although natural resources are free in the sense that they are not created by humans, their extraction, production, and transportation often involve costs. Additionally, some natural resources may become scarce over time due to overuse or depletion, leading to increased prices and a greater focus on sustainability and conservation efforts.

Fiscal policy measures imply a change in

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Fiscal policy measures imply a change in government revenue and expenditure to regulate an economy. Fiscal policy is a tool used by governments to influence the economy by adjusting their spending levels and tax rates. This can be done by either increasing or decreasing government spending and taxes in order to achieve specific economic goals, such as controlling inflation, boosting employment, or promoting economic growth. For example, if the government wants to stimulate economic growth, it may increase its spending on infrastructure projects or offer tax incentives to businesses. Conversely, if the government wants to control inflation, it may decrease government spending and increase taxes to reduce the amount of money circulating in the economy. Therefore, fiscal policy measures involve making changes to both government revenue and expenditure in order to achieve specific economic objectives.

In the event of bankruptcy, owners of joint-stock companies lose

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In the event of bankruptcy, owners of joint-stock companies (also known as shareholders) typically only lose the capital they have invested in the company. They do not lose their private properties or personal assets. When an individual buys shares in a joint-stock company, they become a partial owner of the company. As a shareholder, they are entitled to receive a share of the company's profits in the form of dividends. However, if the company goes bankrupt and cannot meet its financial obligations, the shareholders may lose the value of their investment, meaning the shares they hold in the company become worthless. Therefore, shareholders may lose the capital they invested in the company, but they are not responsible for any additional debts or liabilities the company may have. Shareholders are only liable to lose the value of their shares and do not have to worry about losing their personal assets or private properties.

In order to increase revenue, government should tax commodities for which demand is

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When the demand for a commodity is perfectly price inelastic, it means that people will buy the same amount of the commodity no matter how much it costs. Therefore, if the government increases the tax on this commodity, people will still buy the same amount of it, and the tax revenue will increase. When the demand for a commodity is price inelastic, it means that people will buy a relatively small amount less of the commodity if the price increases. Therefore, if the government increases the tax on this commodity, people will still buy it, but they will pay more for it, and the tax revenue will increase. When the demand for a commodity is price elastic, it means that people will significantly reduce the amount they buy if the price increases. Therefore, if the government increases the tax on this commodity, people will buy less of it, and the tax revenue may not increase as much as expected. When the demand for a commodity is unitary elastic, it means that the change in quantity demanded is exactly proportional to the change in price. Therefore, if the government increases the tax on this commodity, the tax revenue will increase, but the increase in price may cause people to buy slightly less of it. Overall, if the demand for a commodity is relatively inelastic, the government may be able to increase revenue by increasing taxes on it. However, if the demand for a commodity is relatively elastic, the government may not be able to significantly increase revenue by increasing taxes on it, as people may switch to other alternatives or reduce their consumption of the commodity.

IBRD as an international monetary institution is concerned with the

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The International Bank for Reconstruction and Development (IBRD) as an international monetary institution is concerned with the development of infrastructure in member nations. The IBRD, also known as the World Bank, was established to help finance the reconstruction and development of war-torn and developing countries after World War II. The bank provides loans, technical assistance, and other financial services to support projects in a variety of sectors, including infrastructure development, such as transportation, energy, and communication networks, among others. While the IBRD is concerned with the economic development of member nations, it is not primarily focused on financing private business or improving trade among member nations, although these may be outcomes of its operations. Additionally, the IBRD may also provide assistance to member nations facing balance of payments problems, but this is not its primary objective.

A major disadvantage of a capitalist economy is that it

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The major disadvantage of a capitalist economy is that it worsens income inequality among the citizens. In a capitalist system, the means of production and distribution of goods and services are privately owned and operated for profit, leading to a concentration of wealth and power in the hands of a small group of people who own the most productive resources. This results in a situation where the rich get richer, while the poor get poorer, and there is a growing gap between the incomes and living standards of the wealthy and the less well-off members of society. This can create social unrest and political instability, as well as limit opportunities for social mobility and economic growth.

If inflation is anticipated, people may

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If inflation is anticipated, people may choose to spend less money. This is because inflation reduces the purchasing power of money, meaning that the same amount of money can buy fewer goods and services. In response, people may decide to be more frugal with their spending, save more money, or look for ways to reduce their expenses. By spending less, they can try to maintain their purchasing power and avoid the negative effects of inflation.

The point x inside the ppc indicate?

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The point x inside the PPC (Production Possibility Curve) indicates that some of the resources in the economy are currently idle or not being fully utilized. This means that the economy is not producing at its maximum potential, and there is room for further growth and development. The PPC represents the different combinations of goods and services that an economy can produce given its limited resources and technology. The curve shows the maximum output that can be produced with the available resources and technology at a given point in time. Any point inside the curve represents a level of production that is below the maximum potential output, indicating that some resources are not being used to their full capacity. Therefore, if the economy is currently operating at a point inside the PPC, it has the potential to increase its production of goods and services by putting its idle resources to work. This could be achieved through measures such as increasing investment, improving technology, or providing more education and training to the workforce.

A greater burden of the taxes on essential goods is borne by the

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A greater burden of the taxes on essential goods is typically borne by the lower income group. This is because essential goods such as food, clothing, and shelter make up a larger proportion of the budget of low-income households than they do for high-income households. When taxes are applied to these goods, the cost of living increases proportionally for low-income households, putting a greater burden on their limited resources. In contrast, high-income households can more easily absorb the higher costs without significantly affecting their standard of living.

The major role of multi-national companies in the petroleum industry in Nigeria is

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The major role of multinational companies in the petroleum industry in Nigeria is oil prospecting. Multinational companies, also known as International Oil Companies (IOCs), play a significant role in the exploration and production of oil and gas in Nigeria. These companies invest heavily in the exploration of new oil fields, as well as the development and production of existing fields. While some IOCs are also involved in oil marketing and refining, their primary role in Nigeria is oil prospecting. The IOCs in Nigeria include major companies such as Shell, ExxonMobil, Chevron, and Total.