JAMB UTME - Economics - 2018

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Diminishing returns set in at point T in the production function. In a production function, adding more units of input (such as labor or capital) typically leads to an increase in output at a certain rate. However, as the amount of input increases beyond a certain point, the rate of output increase begins to decline. This is known as the law of diminishing returns. In the diagram, points R and S represent the increasing phase of the production function where output increases at an increasing rate as more input is added. However, at point T, the rate of increase in output begins to slow down, indicating that the law of diminishing returns has set in. Beyond point T, adding more input will result in smaller increases in output, and may even cause a decrease in output if the input becomes too excessive, as shown by point V. Therefore, point T is where diminishing returns set in, indicating the optimal level of input for maximum output.

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Mean= ∑fx/∑f

  =(4+15+8+5)/(2+5+2+1)

  =32/10

  =3.2

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Localization of industries refers to the concentration of firms or industries producing similar product in one area. As major firms concentrate in one area, other subsidiary firms that assist the major firms in the production of goods usually emerge.

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The reward for land as a factor of production is rent. Rent is the payment made by a tenant or user of land to the owner of the land in exchange for the right to use the land. Land, as a factor of production, refers to the natural resources such as water, air, forests, minerals, and other resources that are used in the production process. Unlike labor and capital, land is considered to have a fixed supply, which means that its availability is limited. Therefore, the price of land is determined by the demand for it, which is influenced by factors such as location, natural resources, and economic activity. In summary, the reward for land is rent, which is the payment made by a tenant or user of land to the owner of the land in exchange for the right to use the land.

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Average revenue is obtained by dividing the total revenue by the number of units sold. Thus we have;

660/6 = 110 

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Frequent change of leadership of member state creates a difference in ideology and this is a major problem of ECOWAS

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Both statements are correct. Climate and availability of water are important factors that can affect where people choose to live. Areas with a favorable climate and a reliable source of water are often more attractive to people, leading to higher population densities in those regions. On the other hand, areas with harsh climates or limited access to water may have lower population densities. Density of population refers to the number of people living in a given area. By understanding the population density in different regions, we can get a better understanding of how densely populated an area is and how the population is distributed over the land. This information is useful in a variety of fields, including urban planning, resource management, and public health.

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Mean= ∑fx/∑f

  =(16+10+48+48+54+20+144)/(2+1+4+3+3+1+6)

  =340/20

  =17.0

By calculation, the mean of the distribution is not 18

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The type of business finance that entitles the holder to a fixed rate of dividend is called "preferred stock." Preferred stock is a type of investment in a company that gives shareholders a higher priority claim on dividends compared to common stockholders. This means that if the company distributes profits as dividends, the holders of preferred stock will receive their dividend payments first, before common stockholders. In addition to priority dividend payments, preferred stockholders may also have other advantages over common stockholders, such as the ability to vote on certain matters, and a greater degree of safety in the event of bankruptcy or liquidation. The key feature of preferred stock is that it provides a fixed rate of dividend, which is agreed upon at the time of issuance. This means that the company is obligated to pay a certain amount of dividend to preferred stockholders, regardless of how the company performs financially. This can make preferred stock a relatively stable investment option, especially for investors who are seeking a regular income stream.

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An ad valorem tax is imposed on the value of a commodity. This type of tax is calculated as a percentage of the value of a product, rather than a fixed amount. For example, if a product is worth $100 and the ad valorem tax rate is 10%, the tax would be $10. The word "ad valorem" is Latin for "according to value". Ad valorem taxes are commonly used on consumer goods, such as clothing or electronics, and are applied at the point of sale. The purpose of this tax is to raise revenue for the government and to potentially regulate certain products by making them more expensive.

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The different types of capital include: Fixed capital, which are assets not used up in the course of production. Circulatory or Working capitals are assets which are used up in the process of production Eg. Raw materials, fuel etc Social capital is the assets provided by the government that aid production. Examples include electricity, water etc.

Saving capital is not a type of capital

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The need to construct a scale of preference is necessitated by scarcity and the need for choice. Resources are limited, but human wants and needs are unlimited. This creates a situation of scarcity, where people must make choices about how to allocate their resources to satisfy their most pressing needs and wants. A scale of preference is a tool that helps individuals to prioritize their wants and needs, so that they can make informed choices about how to allocate their limited resources. For example, imagine you have a limited amount of money to spend on groceries for the week. You have a long list of items you want to buy, but you can't afford to buy them all. By constructing a scale of preference, you can prioritize the items on your list according to how important they are to you. You might decide that buying bread, milk, and vegetables are your top priorities, while buying luxury items like chocolates and wine are lower on your list. This allows you to make the most of your limited resources and satisfy your most pressing needs first. Therefore, the need to construct a scale of preference is necessitated by scarcity and the need for choice, as it helps individuals to allocate their limited resources in a way that best satisfies their wants and needs.

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The term used to describe the number of people who are qualified to work and who offer themselves for employment is called the "Working Population". The working population refers to individuals who are of working age and are either employed or actively seeking employment. This group of people is considered to be the supply of labor in the economy and is an important factor in determining the overall health and stability of the labor market. It's important to note that the working population can be influenced by various factors such as migration, education levels, and the availability of job opportunities. Understanding the size and composition of the working population can provide valuable insights into the current state of the labor market and can inform decisions related to economic and labor policies.

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The policy by which the government encourages producers of export goods to produce and export more in order to earn more foreign exchange is called export promotion. This policy is aimed at increasing the volume and value of a country's exports, thereby increasing its foreign exchange earnings. Export promotion can take many forms, including providing financial incentives, such as subsidies and tax breaks, to producers of export goods. It can also involve providing training and support to help exporters improve their competitiveness, as well as promoting a country's exports through trade shows and other marketing initiatives. The goal of export promotion is to help a country's businesses increase their exports, create jobs, and boost the economy.

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The correct answer is a mixed economy. A mixed economy is an economic system that combines elements of both the public (government) and private sectors. In a mixed economy, the government and private businesses work together to create economic growth and promote social welfare. In a mixed economy, the government is responsible for providing essential services such as healthcare, education, and infrastructure. The private sector, on the other hand, is responsible for creating goods and services that meet the demands of the market. This type of economy allows for the benefits of both capitalism (private enterprise) and socialism (public enterprise) to coexist. It allows the government to regulate and control certain aspects of the economy, while still allowing the private sector to operate and innovate freely. Many modern economies around the world are considered mixed economies, including the United States, Canada, and the United Kingdom.

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The Economic Commission for Africa (ECA) was set up by the United Nations (UN) in 1958. The ECA is one of the UN's five regional commissions and it was established to promote economic and social development in Africa. The ECA's primary objective is to provide research and policy analysis, as well as technical assistance, to African governments, with the goal of supporting their efforts to achieve sustainable and inclusive economic growth. The ECA also works to promote regional integration and cooperation among African countries, as well as to foster partnerships with other regions of the world. Therefore, the correct answer is the UNO.

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The reward for capital is interest. Capital refers to the money or assets that are used to invest in a business or enterprise. When someone invests their capital into a business, they expect to earn a return on their investment. The return on investment for capital is called interest. Interest is the amount of money paid by the borrower to the lender for the use of their capital. This can be in the form of regular interest payments or a lump sum at the end of the investment period. The interest rate is determined by various factors such as market conditions, inflation, and risk. Therefore, interest is the primary reward for capital.

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When a group data is involved, cumulative frequency is used. The formula will be: Median=[(N+1)/2]th

  For member of odd number items. That is, where N is odd

  Median=([N/2]th + [N/2 + 1]th)/2

  For member of odd number items. That is, where N is odd

  Solution:

  From the table, there are 20 members as indicated by the cumulative frequency. Since the members are odd (10) the median age will be ([N/2]th + [N/2 + 1]th)/2

  Median=([10/2]th + [10/2 + 1]th)/2

  =(5th + 6th)/2

  The 5th member is 3 and the 6th member is on 3

  Median=(3 + 3)/2

  =6/2

  Median = 3

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When the elasticity of demand is zero, the demand curve is said to be perfectly inelastic. This means that a change in price will not cause any change in the quantity demanded. In other words, no matter how much the price changes, the quantity demanded will remain the same. For example, if the price of insulin for diabetes treatment were to double, people who depend on it to survive would have no choice but to continue buying the same amount. This is because they cannot reduce their consumption of insulin, and therefore, the demand for insulin is perfectly inelastic. In terms of the demand curve, a perfectly inelastic demand curve is vertical, meaning that it is a straight line perpendicular to the horizontal axis. This is because, as mentioned earlier, the quantity demanded remains constant regardless of the price. So, when graphed, the demand curve will be a straight vertical line.

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Total budget =$7,200

  Expenditure on Health = x/$7200 × 3600 = 600

  3600x = 600 × $7200

  x = 600×$7200/3600

  x = $1,200

  Therefore, the budget allocated to Health is $1,200

  Expenditure on Agriculture =x /$7200 × 3600 = 800

  3600x = 800 × $7200

  x = 800 × $7200/3600

  x=$1,600

  Therefore, the budget allocated to Agriculture is $1,600

  Ratio of expenditure on Health to Agriculture;

  Ratio=1200:1600

  =3:4

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The reduction in the value of a country's currency in relation to the value of the currencies of other nations is known as "Devaluation". When a country's currency is devalued, it means that the value of its currency has decreased compared to the currencies of other countries. This can happen for a number of reasons, including a decrease in the demand for the country's goods and services, a decrease in the country's economic growth, or a decrease in the country's foreign reserves. A devaluation makes a country's exports cheaper and more competitive on the global market, which can help boost the country's economy. However, it can also lead to higher prices for imported goods, which can negatively impact the country's consumers. In simple terms, devaluation is when a country's currency becomes less valuable compared to other currencies.

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The formation of cartels or monopolies in order to obtain better bargaining or deals from other countries is characteristic of countries producing the same or identical goods. When multiple countries produce the same or very similar goods, they may face competition from each other in the global marketplace. This competition can lead to lower prices and lower profits for all the countries involved. To avoid this, these countries may form a cartel or monopoly by agreeing to work together to limit production or fix prices. By doing so, they can increase their bargaining power and negotiate better deals with other countries or buyers. For example, the Organization of the Petroleum Exporting Countries (OPEC) is a cartel made up of oil-producing countries that work together to regulate the supply and price of oil in the global market. By working together, they can maintain higher prices for their oil and negotiate better deals with buyers. Overall, the formation of cartels or monopolies can be a way for countries producing similar goods to gain more control over the market and secure better economic outcomes for themselves.

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The two major types of international trade are bilateral trade and multilateral trade. Bilateral trade refers to the exchange of goods and services between two countries. It involves the negotiation and agreement of terms and conditions between two parties, and it usually results in a trade surplus or deficit for each country. On the other hand, multilateral trade involves the exchange of goods and services among three or more countries. This type of trade is governed by international trade agreements, such as the World Trade Organization, and aims to promote free trade and economic cooperation among member countries. In summary, bilateral trade involves trade between two countries, while multilateral trade involves trade among three or more countries and is governed by international trade agreements.

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The full meaning of NAPEP is National Poverty Eradication Programme. It is a government-led initiative aimed at reducing poverty and improving the standard of living for citizens in a given country. The program typically focuses on providing financial and other forms of support to those living in poverty, with the goal of helping them to become self-sufficient and better able to meet their own needs. The specific activities and approaches of NAPEP can vary from country to country, but the overarching goal is always to help people escape the cycle of poverty and build better lives for themselves and their families.

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The use of income and expenditure instruments or policies to control or regulate the economic activities of a country is known as Fiscal Policy. Fiscal policy involves the use of government spending and taxation to influence the economy's performance. For example, during a recession, the government may increase its spending to stimulate economic growth and create jobs. Alternatively, during a period of high inflation, the government may reduce its spending and increase taxes to reduce the amount of money in circulation and lower inflation. Fiscal policy can be used to achieve various economic objectives, such as stabilizing the economy, promoting economic growth, and reducing income inequality. It is an essential tool for governments to manage the economy and ensure its stability and growth over the long term.

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The economic term used to refer to human wants, desires, or needs is "Ends". In economics, ends refer to the goals or objectives that individuals or society aims to achieve. These are the things that people want or need, such as food, shelter, clothing, entertainment, or education. Ends are considered to be unlimited because there are always new wants or needs that arise as people's tastes and preferences change, as well as advances in technology and innovation. However, the resources to satisfy these ends are limited, which creates a problem of scarcity. To achieve these ends, individuals must use alternative means, or resources, such as labor, capital, or natural resources. Therefore, the correct option is "Ends".

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External economies of scale are economies of scale which a firm enjoys by virtue of being in an industry or environment where for instance, similar firms are located, as this question asks about. They are still economies of scale though, so technically B could also be correct. This is one of those tricky questions.

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Factors that affect the size of Labour Force include the following: Size of population of a country, official school leaving age, retirement age, pursuit of higher education, age, structure of population, role of women in the society, number of working hours and working days, the number of disabled, the number of people willing to work, migration.

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The coefficient of the price elasticity of supply is positive. This means that as the price of a good or service increases, the quantity of it that is supplied will increase as well. Conversely, if the price decreases, the quantity supplied will decrease. The degree to which the quantity supplied responds to changes in price is what the coefficient of the price elasticity of supply measures. A perfectly elastic supply has an elasticity of infinity, meaning that even a small change in price will result in a large change in the quantity supplied. On the other hand, a perfectly inelastic supply has an elasticity of zero, meaning that the quantity supplied does not change in response to price changes.

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The pie chart shows the budget allocation of a country. The total budget is $7,200.00. To find out how much is allocated to education, we need to look at the portion of the pie chart that represents education. Based on the options given, the amount allocated to education is $2,400.00. This means that out of the total budget of $7,200.00, $2,400.00 is set aside for education.

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The ultimate objective of economics is to make the best use of scarce resources. This means that economics seeks to understand how people, businesses, and societies allocate limited resources such as land, labor, capital, and technology in order to satisfy unlimited wants and needs. The goal is to ensure that resources are used in the most efficient and effective way possible, so that people can enjoy a higher standard of living and greater economic prosperity.