JAMB UTME - Economics - 2022

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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.

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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.

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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.

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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.

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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.

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If the marginal utility of a commodity is equal to its price, then the consumer is in equilibrium. This means that the consumer is getting the maximum satisfaction possible from the commodity, given its price. If the marginal utility was greater than the price, the consumer would be willing to pay more for an additional unit of the commodity, indicating that they are not yet at their maximum level of satisfaction. Conversely, if the marginal utility was less than the price, the consumer would not be willing to pay the price for an additional unit, indicating that they have already exceeded their maximum level of satisfaction. Therefore, when the marginal utility is equal to the price, the consumer is in a state of balance, and does not want to consume more or less of the commodity.

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Commercial banks and development banks serve different functions within the financial system. Commercial banks are focused on providing financial services to individuals and businesses, such as deposit accounts, loans, and credit cards. They generally lend on a short-term basis and deal in a variety of currencies, including foreign currencies. In contrast, development banks are focused on promoting economic development and supporting long-term projects that may not be attractive to commercial banks. They typically provide financing for large infrastructure projects, such as highways, railways, and power plants, as well as small and medium-sized enterprises. Development banks may be government-owned, private, or a combination of both, and their main goal is to support economic growth and development. Development banks may also offer technical assistance and advisory services to help businesses and governments develop the skills and expertise needed to manage large-scale projects effectively. Unlike commercial banks, development banks may not pay interest on current accounts and may have different lending terms and requirements based on the specific needs of the project or business being financed.

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An effect of inflation is that it "favors debtors at the expense of creditors." Inflation reduces the real value of money over time, which means that the value of debt also decreases. This can be an advantage for debtors, who are able to repay their debts with money that is worth less than when they borrowed it. In contrast, creditors are disadvantaged by inflation, as the value of the money they receive in repayment is worth less than the money they loaned out. Inflation can also have other effects, such as reducing the purchasing power of consumers, increasing uncertainty, and distorting economic decision-making.

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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.

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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.

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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.

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Massive importation of consumer goods will not lead to economic growth. Economic growth refers to an increase in the capacity of an economy to produce goods and services over a period of time. It is measured by the growth in the gross domestic product (GDP) of a country. Massive importation of consumer goods may lead to an increase in consumption, but it does not lead to an increase in the productive capacity of an economy. This is because consumer goods are used for immediate consumption and do not contribute to the production of other goods and services. On the other hand, capital goods like machinery, equipment, and infrastructure are used to produce other goods and services, and their importation can lead to economic growth by increasing the productive capacity of an economy. Intensive capital formation and the use of modern technology also contribute to economic growth by increasing the efficiency and productivity of an economy.

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When the central bank increases the bank rate, it becomes more expensive for banks to borrow money from the central bank. This, in turn, leads banks to charge higher interest rates on loans they give to their customers. As a result, borrowing becomes more expensive for customers, so they might choose to borrow less money or pay off existing loans. This discourages borrowing and slows down the overall spending in the economy. On the other hand, since banks have to pay a higher interest rate to the central bank, they might be able to increase the interest they charge on loans, which would increase their profits. The increase in the bank rate does not directly impact the money supply in the economy. The central bank can use other tools, such as open market operations, to influence the money supply.

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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.

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The increase in the demand for a commodity may lead to a decrease in the demand for another if both are in competitive demand. When two goods are in competitive demand, they are seen as substitutes for each other, meaning that they can be used for the same purpose. For example, coffee and tea can be seen as substitutes for each other, since both are beverages that can be used to satisfy the same desire for a hot drink. So, if the demand for coffee increases, people may buy more coffee and less tea, because they see coffee as a substitute for tea. Similarly, if the demand for tea increases, people may buy more tea and less coffee, because they see tea as a substitute for coffee. On the other hand, if two goods are in complementary demand, they are often used together. For example, if the demand for cars increases, the demand for gasoline will also increase, since cars require gasoline to run. Similarly, if the demand for smartphones increases, the demand for phone cases may also increase, since people may want to protect their phones. In composite demand, a good has multiple uses, so an increase in demand for one use may not necessarily lead to a decrease in demand for another use. And in the case of goods of the same quality, an increase in demand for one good does not necessarily affect the demand for the other good, since they are not substitutes or complements.

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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.

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Based on the pie chart, the Education sector is represented by 1/3 of the total budget allocation. To find out how much is allocated to Education, we can calculate 1/3 of the total budget: 1/3 x $7,200 = $2,400 Therefore, the answer is $2,400.00.

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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.

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Statutory organizations usually established by Acts of parliament are called public corporations. A public corporation is a type of legal entity that is established by the government through legislation to perform a specific function or provide a particular service to the public. Public corporations can be formed at the national, state, or local level, and can take a variety of forms depending on their specific mandate. While public enterprises are also entities that are owned and controlled by the government, they may not necessarily be established by Acts of parliament. Cooperative societies are typically voluntary organizations formed by individuals or businesses to pool resources and share risks, while joint-stock companies are privately owned businesses that are established to generate profit for their shareholders.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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An example of commodity money is silver. Commodity money is a physical object that has intrinsic value in addition to its value as a medium of exchange. Historically, commodities such as gold and silver have been used as a form of money because they are scarce and have inherent value. For example, silver is used not only as money, but also for jewelry, silverware, and other industrial applications. In this way, its value is based on its usefulness in addition to its value as a medium of exchange. In contrast, modern forms of money, such as currency notes, mobile money, and cheques, are not commodities in and of themselves but represent a claim on goods and services.

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If the government imposes a minimum price on a commodity, it means that sellers cannot sell the commodity for a price lower than the minimum price set by the government. This is done to ensure that the producers of the commodity are getting a fair price for their goods. When a minimum price is set, it may result in excess supply (market surplus) of the commodity, as producers may be incentivized to produce more of the commodity at the higher price. However, the surplus can be reduced if the government buys the excess supply or if producers reduce their production. In the short-run, the market may be cleared, which means that all of the available supply of the commodity is sold at the minimum price set by the government. However, in the long-run, excess demand may occur as the minimum price may discourage buyers from purchasing the commodity. Therefore, government regulation may still be needed to ensure that the market operates efficiently, even with the minimum price in place.

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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.

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The demand for labour is an example of derived demand. Derived demand refers to the demand for a good or service that arises from the demand for another good or service. In the case of labour, the demand for it is derived from the demand for the goods and services that labour produces. For example, a factory may demand more labour to increase production of a particular product to meet customer demand. The demand for labour is not a direct demand, but rather a demand that is derived from the demand for the final product.

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If W stands for wages/salaries, P for profits, R for interest, and Z for rent on land and real estate, then the national income is given by:

W + P + R + Z

This is because national income is the total amount of income earned by individuals and firms within a country's borders, and it includes all four components of W, P, R, and Z.

Wages and salaries are earned by employees, profits are earned by business owners, interest is earned by lenders, and rent is earned by landlords. When we add up all of these components, we get the total national income.

Therefore, "W+P+R+Z," is the correct answer.

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The use of the bank rate, cash ratio, and open market operations are tools used in monetary policy. Monetary policy is a set of actions taken by a country's central bank to manage the supply of money and credit in the economy to achieve specific economic goals, such as controlling inflation, stabilizing prices, and promoting economic growth. The bank rate is the interest rate at which commercial banks can borrow money from the central bank. When the central bank increases the bank rate, it becomes more expensive for commercial banks to borrow money, which reduces the amount of money in circulation in the economy. Conversely, when the central bank lowers the bank rate, it becomes cheaper for commercial banks to borrow money, which increases the amount of money in circulation in the economy. The cash ratio is the percentage of deposits that commercial banks are required to hold in reserve with the central bank. When the central bank increases the cash ratio, it reduces the amount of money that commercial banks have available to lend, which reduces the amount of money in circulation in the economy. Conversely, when the central bank lowers the cash ratio, it increases the amount of money that commercial banks have available to lend, which increases the amount of money in circulation in the economy. Open market operations refer to the buying and selling of government securities by the central bank in the open market. When the central bank buys government securities, it injects money into the economy, which increases the amount of money in circulation. Conversely, when the central bank sells government securities, it withdraws money from the economy, which reduces the amount of money in circulation. So, the use of bank rate, cash ratio, and open market operations are all tools used in monetary policy to manage the amount of money in circulation in the economy, with the aim of achieving specific economic goals.

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Transfer payments refer to payments made by the government or other institutions to individuals or other entities, without receiving any goods or services in return. These payments are typically made for social welfare purposes or to redistribute income. An example of a transfer payment in national income accounting is unemployment allowance paid to citizens who are unemployed. The government pays these allowances to support individuals who are currently out of work and seeking employment. This payment is considered a transfer payment because the government is not receiving any goods or services in return for the funds provided. Transfer payments are not included in the calculation of GDP because they do not represent the production of goods or services. However, they are important in measuring the overall economic well-being of a society, particularly in terms of income distribution and social welfare.

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If the mining sector contributes 60% to the Gross Domestic Product (GDP), then its contribution can be calculated by multiplying the GDP by 60% (or 0.60, which is the decimal equivalent of 60%).

So, the contribution of the mining sector to the GDP is:

Contribution of mining sector = GDP x 60%

= $540 x 0.60

= $324

Therefore, the contribution of the mining sector to the GDP is $324. 

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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.

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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.

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The production process described in the question, where the marginal physical product of the variable factor increases as more units of it are added to a fixed factor, is referred to as increasing returns to the variable factor. In this case, the variable factor is becoming increasingly productive as more units of it are added, which results in an increase in the marginal physical product. Increasing returns to scale, on the other hand, refer to the situation where an increase in all factors of production leads to a more than proportionate increase in output. Constant returns to the variable factor occur when increasing the variable factor by a certain percentage leads to a proportional increase in output. Finally, external economies of scale refer to the cost advantages that a firm experiences as a result of factors outside of its control, such as the growth of an industry or the development of infrastructure.

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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.