JAMB UTME - Economics - 2022

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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In perfectly elastic supply, the supply curve

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In perfectly elastic supply, the supply curve is a horizontal line. This means that the quantity of a good that a supplier is willing to sell is not affected by changes in the price of the good. The supplier will sell any quantity of the good at the market price, no matter how high or low it is. In other words, the supply is perfectly responsive to changes in the price, so the supply curve is flat.

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.

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.

Which of the following factors may not affect the efficiency of labour?

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Among the given options, the factor that may not affect the efficiency of labor is the race and color of the workforce. The efficiency of labor refers to the amount of output that a worker can produce within a given time frame. Education and training can enhance workers' skills and knowledge, improving their ability to perform their jobs efficiently. Providing welfare services such as healthcare, childcare, and paid time off can also increase worker satisfaction and well-being, which can positively impact their productivity. The quality of other factor inputs, such as machinery, raw materials, and technology, can also have a significant impact on labor efficiency. High-quality inputs can facilitate and enhance workers' ability to produce more output in less time, increasing their efficiency. However, the race and color of the workforce do not inherently affect the efficiency of labor. A worker's productivity is determined by their individual skills, knowledge, and work ethic, regardless of their race or color. Discrimination based on race or color can negatively impact worker morale, job satisfaction, and opportunities, which can indirectly affect labor efficiency. Still, race or color itself is not a direct determinant of worker efficiency.

The production cost that varies inversely with output is the

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The price mechanism 

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The price mechanism is a system in an economy where the prices of goods and services are determined by the forces of supply and demand. This mechanism is responsible for regulating the balance between what consumers want to buy and what producers want to sell. As the demand for a particular item increases, the price of the item will rise, causing producers to increase supply to meet the demand. On the other hand, if the demand decreases, the price will fall, and producers will decrease their supply. In this way, the price mechanism helps allocate scarce resources by ensuring that the goods and services that are in high demand are produced and distributed more, while those that are not in high demand are produced and distributed less. In conclusion, the price mechanism does all of the above - regulates supply and demand, rations the consumers, rewards the producers, and allocates scarce resources - to ensure an efficient and effective allocation of resources in an economy.

Which of the following industries will add more value to primary products?

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The industry that adds more value to primary products is the processing industry. The processing industry takes raw materials, such as those produced by the mining industry, and turns them into finished products through various manufacturing processes. This added value comes from transforming the raw materials into something that is more useful and valuable to consumers. The service industry, on the other hand, provides services to individuals and businesses, such as consulting, financial advice, or customer support. While the service industry is important for the economy, it does not add value to primary products in the same way that the processing industry does. The construction industry involves the building of structures and infrastructure, such as buildings, roads, and bridges. While the construction industry uses materials produced by the mining industry, it does not add value to these materials in the same way that the processing industry does. In conclusion, the processing industry is the industry that adds the most value to primary products by transforming raw materials into finished goods that are more useful and valuable to consumers.

Economic goods are termed scarce goods when they are

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Economic goods are termed scarce goods when they are not available in sufficient quantity to satisfy all wants for them. In other words, when there is a limited supply of a good or resource, but a potentially unlimited demand for it, that good is considered to be scarce. This concept is fundamental to economics because it helps to explain why goods have value and why individuals and societies must make choices about how to allocate scarce resources.

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.

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.

Fixing the prices of agricultural products can be a problem because of the

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Fixing the prices of agricultural products can be a problem because of the unpredictable output of farmers. Agricultural output can vary due to a variety of factors including weather, pests, disease, and other unpredictable factors. This variability can make it difficult to accurately predict the supply of agricultural products and set prices accordingly. While the instability of government policies, activities of marketing boards, and the size of agricultural exports can also have an impact on the pricing of agricultural products, the unpredictable output of farmers is a primary factor that can create challenges in setting prices. Instability of government policies can create uncertainty in the market, while the activities of marketing boards can sometimes lead to distortions in supply and demand. The size of agricultural exports can also influence prices by affecting the balance of supply and demand in domestic and international markets.

A baker bought flour and other ingredients for S250.00, spent S52.00 on distribution, sold the bread for S320.00. The value added by the baker.

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The value added by the baker is $90.00. To calculate the value added by the baker, we need to subtract the cost of goods sold (COGS) from the revenue. The COGS in this case includes the cost of flour and other ingredients, which is not given, but we know that the baker spent a total of $250.00 on these items. We also need to include the cost of distribution, which is $52.00. So the total COGS is $250.00 + $52.00 = $302.00. The revenue from selling the bread is $320.00. Therefore, the value added by the baker is $320.00 - $302.00 = $18.00. In other words, the baker added $18.00 of value to the raw materials and distribution costs to produce and sell the bread. This value added represents the baker's contribution to the economy and is a measure of the wealth created by the baker's business.

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.

The curve labelled x is the

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The demand curve for goods of ostentation is usually

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A positive effect of a rapid population increase is

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A positive effect of a rapid population increase is a wider market for goods and services. When there are more people in a country, there is a higher demand for goods and services, which can lead to economic growth and development. As more people are born and immigrate to a country, they will need housing, food, clothing, healthcare, and other goods and services, which can lead to an increase in jobs and businesses. This wider market for goods and services can stimulate economic growth, create job opportunities, and ultimately improve the standard of living for individuals in the country. However, it is important to note that rapid population growth can also bring challenges such as pressure on resources and infrastructure, which can lead to other negative effects.

If the quantity demanded of a commodity increases from 20 units to 30 units when there is an increase in price from $4.00 to $5.00, the elasticity of demand is

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The elasticity of demand measures the responsiveness of the quantity demanded of a commodity to a change in its price. In this case, when the price of the commodity increased from $4.00 to $5.00, the quantity demanded increased from 20 units to 30 units. To calculate the elasticity of demand, we use the following formula: Elasticity of demand = (percent change in quantity demanded) / (percent change in price) First, let's find the percent change in quantity demanded: (30 units - 20 units) / 20 units = 0.50 or 50% Next, let's find the percent change in price: (5.00 - 4.00) / 4.00 = 0.25 or 25% Finally, let's plug in the values into the formula: Elasticity of demand = 0.50 / 0.25 = 2.00 So, the elasticity of demand in this case is 2.00. This means that a 1% increase in price leads to a 2% decrease in the quantity demanded.

The demand for labour is an example of

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The demand for labor is an example of "derived demand." Derived demand refers to the demand for a factor of production or a good that arises as a result of the demand for another good or service. In the case of labor, it is not demanded for its own sake but rather because it is needed to produce goods and services that consumers demand. The demand for labor is therefore derived from the demand for the goods and services that labor helps to produce.

Holding money to take care of contingencies is

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Holding money to take care of contingencies is a precautionary motive. This means that people keep money saved in case of unexpected events or emergencies, such as a sudden illness, job loss, or car repair. By having money set aside, they are better prepared to handle these situations and can avoid going into debt or facing financial hardship. In short, holding money for precautionary reasons is a way to protect one's financial security and peace of mind.

Which of the following cannot be classified as a natural resource?

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An iron rod cannot be classified as a natural resource. A natural resource is a material or substance that occurs naturally in the environment and can be used for economic gain. Natural resources can be classified into renewable and non-renewable resources. Renewable resources are those that can be replenished over time, such as solar energy, wildlife, and forests. Non-renewable resources are those that cannot be replenished, such as minerals and fossil fuels, including gold. An iron rod is not a natural resource because it is a manufactured item made from iron, which is a natural resource. The iron has been extracted from the earth and processed to make the rod, which is then used for various purposes. So, while the raw material (iron) may be a natural resource, the finished product (the iron rod) is not.

PN equals average revenue or marginal revenue cure of

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Scale of preference shows

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The scale of preference refers to a list of a consumer's wants or desires arranged in order of importance or priority. It shows the consumer's preferences or choices among different options. The scale of preference is subjective and varies from person to person. For instance, if a person is given the choice to buy a new smartphone, a new pair of shoes, or a ticket to a concert, they may rank these options in order of priority. If they value communication more than entertainment, they may choose the smartphone as their top priority. Conversely, if they value entertainment more than communication, they may choose the concert ticket. Thus, the scale of preference is a way to understand how consumers make choices based on their preferences and priorities, and it helps in predicting their behavior in the market.

If the cost of production for a firm continues to increase as its output rises, the firm is said to be experiencing

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The firm is said to be experiencing diseconomies of scale if the cost of production continues to increase as its output rises. Diseconomies of scale occur when the firm becomes too large, and the increased complexity and coordination costs of managing a large organization outweigh the benefits of increased production. This can result in a decrease in efficiency, productivity, and profitability for the firm.

The theory of comparative advantage states that a commodity should be produced in that nation where the

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The theory of comparative advantage states that a commodity should be produced in that nation where the opportunity cost is least. Opportunity cost is the cost of choosing one option over another, and in the context of comparative advantage, it refers to the cost of producing a particular good or service in terms of what has to be given up to produce it. A country should specialize in producing and exporting the goods and services for which it has a comparative advantage, which means that it can produce them at a lower opportunity cost than other countries. While the absolute cost and absolute money cost of production can be important factors in determining the competitiveness of a particular commodity, the theory of comparative advantage emphasizes the importance of considering opportunity cost. Furthermore, the production possibility curve, which shows the maximum combination of two goods that can be produced with a given set of resources, is not directly related to the theory of comparative advantage, although it can help illustrate some of the concepts involved in the theory.

The distinction between capital and recurrent expenditure lies in the

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

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The major role of multi-national companies in the petroleum industry in Nigeria is oil prospecting. These companies typically invest heavily in exploration, drilling, and production of crude oil in Nigeria, which is one of the largest oil-producing countries in Africa. The multi-national companies also play a significant role in the development of Nigeria's oil and gas infrastructure, including pipelines, storage facilities, and export terminals, which are necessary for getting the oil to international markets. While some of these companies are also involved in downstream activities such as oil marketing and refining, their primary role in Nigeria's petroleum industry is oil exploration and production.

To compare the standard of living among nations, the most widely used economic indicator is the

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To compare the standard of living among nations, the most widely used economic indicator is the real per capita income. This is a measure of the average income per person in a given country, adjusted for inflation to reflect the purchasing power of that income. It is calculated by dividing the real gross domestic product (GDP) of a country by its population, which gives a sense of the economic output per person. While per capita nominal income and real gross national income are also used as economic indicators, they do not take into account inflation or differences in the cost of living across countries, which can make them less useful for comparing living standards. Real domestic output is not as widely used as real per capita income as it does not take into account the size of the population, which is an important factor in determining the standard of living.

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.

A firm that closes down will still incur

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Even if a firm closes down, it will still incur some fixed costs. Fixed costs are expenses that must be paid regardless of the level of production or whether the business is operating or not. These costs include things like rent, insurance, salaries of employees on long-term contracts, and equipment leases. Variable costs, on the other hand, are expenses that vary depending on the level of production or business activity. For example, the cost of materials or labor directly related to producing goods or services. If the firm closes down, it will not incur variable costs because it will not be producing any goods or services. Total cost is the sum of fixed and variable costs, so if the firm is not producing anything, the total cost will be equal to the fixed cost. Marginal cost is the cost of producing one additional unit of a good or service. If the firm is closed down, there is no production, so there is no marginal cost.

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 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.

The sufficient condition for a firm to be in equilibrium is that the

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Economics problems arise in all societies because

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Economics problems arise in all societies because of the fundamental concept of scarcity. Scarcity means that the resources available to society are limited, while the wants and needs of individuals are virtually unlimited. This leads to a situation where individuals, businesses, and governments have to make choices about how to allocate scarce resources in the most efficient and effective way possible. For example, a society may want to provide free healthcare to all its citizens, but it may not have the resources to do so. Alternatively, a business may want to produce more products, but it may not have the resources to expand its production line. These are just two examples of the countless economic choices that are made every day. Mismanagement of resources by leaders, lack of planning, inadequate supply of resources, and underutilization of economists are some of the factors that can exacerbate economic problems in a society. However, the underlying cause of economic problems is the scarcity of resources, which requires individuals and institutions to make difficult choices about how to allocate those resources.

The pie chart above represent the total population of a school of 1,200. The shaded area of 60∘ shows the population of the underaged pupils.

What is the population of the matured students?

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Since the entire pie chart represents the total population of the school, and the shaded area of 60∘ represents the underaged pupils, then the remaining unshaded area of the pie chart must represent the population of matured students. To find the measure of the unshaded area, we can subtract the measure of the shaded area from the total measure of the pie chart, which is 360∘ (since a circle has 360 degrees). So the unshaded area is: 360∘ - 60∘ = 300∘ The unshaded area of 300∘ represents the population of the matured students. To find the actual population of the matured students, we need to convert the 300∘ into a proportion of the total population. The proportion of the matured students is: 300∘ / 360∘ = 5/6 This means that the population of the matured students is 5/6 of the total population of the school, which is: (5/6) x 1200 = 1000 Therefore, the population of the matured students is 1000.

Under a floating exchange rate regime, the determinant of the exchange rate is

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Under a floating exchange rate regime, the determinant of the exchange rate is "demand for and supply of foreign goods." In a floating exchange rate system, the exchange rate between two currencies is determined by the market forces of supply and demand. Factors such as interest rates, inflation rates, and trade flows can influence the demand for and supply of currencies, which in turn can affect the exchange rate. Unlike fixed exchange rate systems, where the exchange rate is determined by government policy, in a floating exchange rate system, the exchange rate can fluctuate based on market conditions.

The main objective of marketing boards is to

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The main objective of marketing boards is to stabilize the incomes of cash crop farmers. Marketing boards help to regulate the supply and demand of cash crops, ensuring stable prices and incomes for farmers. They also provide support services to farmers, such as warehousing facilities and education on pricing, to help them sell their crops more effectively. While marketing boards may generate revenue for the government, their primary focus is on supporting and protecting the livelihoods of farmers.

The stock exchange is an example of the

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The stock exchange is an example of a capital market. A capital market is a market where individuals and institutions trade financial securities, such as stocks and bonds, with the goal of raising capital. In other words, the capital market is where businesses can go to raise money by selling ownership in the company (stocks) or borrowing money (bonds) from investors. The stock exchange is a specific type of capital market where publicly-traded companies can sell ownership in the form of stocks to the public. Investors can buy and sell these stocks on the exchange, and the value of the stocks can rise or fall based on various factors, such as the company's financial performance, overall market conditions, and investor sentiment. Overall, the stock exchange and other capital markets play an important role in facilitating the flow of capital and resources throughout the economy, helping businesses raise funds to invest in growth and development, and providing investors with opportunities to earn a return on their investment.

A possible factor which limits the extent of growth of a firm is the

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One possible factor that limits the extent of growth of a firm is the unwillingness to share ownership and control. When a firm is controlled by a single owner or a small group of owners who are not willing to share ownership or decision-making power, it can limit the firm's ability to raise capital, make strategic partnerships, or expand into new markets. In contrast, allowing outside investors or partners to have a stake in the company can provide the firm with access to more resources, expertise, and new opportunities for growth.

There is unemployment of resources when production is

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Unemployment of resources occurs when production is below the production possibility curve, which means that the economy is not using all of its available resources to produce goods and services. These unused resources can include labor, capital, land, and natural resources. When production is within the production possibility curve, it means that the economy is using all of its resources efficiently and producing as much as it can given its current level of resources. Along the production possibility curve, the economy is also producing efficiently, but it is not using all of its resources. If production is outside the production possibility curve, it means that the economy is not capable of producing that level of output given its current resources. Finally, if production is adequate to meet market demand, it means that the economy is producing enough goods and services to satisfy the needs and wants of consumers. In summary, unemployment of resources occurs when the economy is not using all of its available resources to produce goods and services, which results in an output level below the production possibility curve.