JAMB UTME - Economics - 2023

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- Monetary policy is implemented by reducing the interest rates in the economy in order to increase the supply of money to enhance growth.

- The fiscal policy is implemented by the reduction of taxes and increasing government spending in order to boost demand.

- Policymakers may choose to implement a stabilization policy to close the recessionary gap and increase real GDP.

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To calculate the equilibrium level of national income (Y), we start with the equation Y = C + I + G. In this equation, C represents consumption spending, I represents investment spending, and G represents government spending. Now, let's substitute the given values into the equation: C = 100 + 0.75Y I = 50 G = 200 Substituting these values, we get: Y = (100 + 0.75Y) + 50 + 200 To solve for Y, we need to simplify the equation: Y = 100 + 0.75Y + 50 + 200 Combining like terms, we have: Y = 350 + 0.75Y Next, we can solve for Y by isolating it on one side of the equation. To do this, we can subtract 0.75Y from both sides: Y - 0.75Y = 350 Simplifying further, we have: 0.25Y = 350 Finally, we can solve for Y by dividing both sides of the equation by 0.25: Y = 350 / 0.25 Calculating this, we find: Y = 1400 So, the equilibrium level of national income (Y) is 1400.

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In a two by two model of international trade, it is assumed that **both countries could gain from trade at the same time, but the volume of the gains depends on terms of trade**. This means that both countries can benefit from engaging in trade with each other. Trade allows both countries to specialize in producing and exporting the goods in which they have a comparative advantage, while importing goods that they are less efficient at producing. This leads to increased efficiency and overall economic gains for both countries. However, the volume of the gains from trade depends on the terms of trade between the two countries. The terms of trade refer to the ratio at which the countries exchange their goods. If one country has a higher bargaining power or can produce goods at a lower cost, they may negotiate more favorable terms of trade, leading to a larger volume of gains for that country. On the other hand, if the terms of trade are less favorable, the volume of gains for both countries may be smaller. In summary, while both countries can benefit from trade, the extent of the gains will vary depending on the terms of trade negotiated between them.

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A quota on imports is a restriction imposed by a government on the quantity of goods that can be imported into a country. It is typically done to protect domestic industries and promote economic growth.

Out of the given options, a government imposing a quota on imports would not be done to decrease tax revenue. In fact, the purpose of implementing import quotas is quite the opposite – to increase tax revenue by protecting domestic industries and promoting their growth.

Let's understand this further:

1. To support strategic industry: One of the main reasons governments impose import quotas is to protect and support domestic industries that are considered strategically important for the country's economy. By limiting imports, the government aims to give domestic industries an advantage by reducing competition from foreign firms.

2. To prevent dumping: Dumping refers to the practice of selling goods in another country at prices lower than their production costs or market value. This undermines domestic industries and poses a threat to their survival. By imposing import quotas, the government can control the influx of dumped products and protect domestic industries from unfair competition.

3. To decrease tax revenue: This option is incorrect because imposing import quotas does not aim to decrease tax revenue. When imports are restricted, domestic industries have less competition, which allows them to charge higher prices. As a result, the government can collect more tax revenue from these higher-priced goods, thus increasing its overall revenue.

4. Employment opportunity: Another reason governments may impose import quotas is to create employment opportunities. By limiting imports, domestic industries can expand their production and hire more workers to meet the local demand. This helps in reducing unemployment and improving the overall economic conditions of the country.

In conclusion, the correct answer is that a government would not impose a quota on imports to decrease tax revenue. Import quotas are intended to protect strategic industries, prevent dumping, and create employment opportunities, while also increasing tax revenue.

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Economic profit = Total revenue(Output) - Opportunity cost of input
= 1,000,000 - 750,000
= 250,000

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The age group that belongs to the active labor force is the **18 - 64 years** category. This age range is generally considered to be the working-age population, as it encompasses individuals who are old enough to work and have not yet reached the age of retirement. People in this age group are typically in their prime working years, where they have the physical ability and the necessary skills and knowledge to actively participate in the labor market. They are often seeking employment, working in various industries or sectors, and contributing to the economic growth and development of their country. It is important to note that the specific age range considered as the working-age population may vary slightly across different countries or regions. However, in most cases, it generally falls within the **18 - 64 years** age bracket. On the other hand, the other age groups mentioned in the options are not typically considered as part of the active labor force: - The **0 - 17 years** age group consists of individuals who are below the legal working age and are typically attending school or dependent on others for their livelihood. - The **15 - 25 years** age group partially overlaps with the working-age population, but it includes individuals who may still be in school or pursuing higher education. While some individuals within this age range may be actively seeking employment or working part-time, they are generally not considered as the core active labor force. - The **65 years and above** age group represents individuals who have reached the retirement age or are eligible for retirement benefits. While some individuals in this age range may continue to work, either out of choice or due to financial circumstances, they are not considered as the primary active labor force. In summary, the **18 - 64 years** age group is the one that belongs to the active labor force, consisting of individuals who are in their prime working years and actively participating in the labor market.

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The diagram above represent a monopolist diagram.

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Point 'E" inside the graph indicates it is technologically inefficient" , Underemployed" or wide spread unemployent" or resources are not fully utilized or production inefficient"

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The causes of balance of payment deficit are: low level of agriculture, low level of technological development, inadequacies in export promotion strategy, political instability, poor social and economic infrastructure, servicing of huge external debts, existence of import dependent industries etc.

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Agriculture accounts for about 60% of the active labour force in West Africa. This is because a large portion of the population in West Africa is engaged in farming and other agricultural activities for their livelihood. The other options are incorrect as agriculture does not account for 60% of the arable land, service sector activities, or the commodity market in West Africa.

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Part-time workers who desire full-time employment are classified as underemployed and contribute to the unemployment statistic.
Underemployment refers to a situation where individuals are working fewer hours than they would like or in jobs that do not utilize their skills and qualifications fully. In this case, part-time workers who desire full-time employment are considered underemployed because they are not able to secure the desired amount of work hours.
These underemployed workers contribute to the unemployment statistic because they are actively seeking additional work hours to meet their employment needs. They are considered part of the labor force because they are willing and available to work more hours, but they have not been able to find full-time employment.
It is important to note that not all underemployed workers contribute to the unemployment statistic. Some may choose to work part-time for personal reasons, such as family responsibilities or pursuing education. These individuals, although underemployed, are not actively seeking additional work hours and therefore do not contribute to the unemployment statistic.
However, in the case of individuals who are part-time workers and desire full-time employment, their underemployment status reflects the inadequacy of available job opportunities. They increase the count of unemployed individuals because they are willing and actively searching for additional work.
It is worth mentioning that cyclical unemployment is a different type of unemployment. It occurs when there is a downturn in the economy, causing a decrease in overall demand for goods and services, and subsequently, a decrease in the demand for labor. Cyclical unemployment is not directly related to the part-time workers' desire for full-time employment.

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The law of supply states that, other things being constant, as price increases, the quantity supplied also increases. Basically, when the price of a good or service goes up, suppliers have an incentive to produce and sell more of that item. This is because they can earn more profit by selling at the higher price. So, as the price rises, suppliers are motivated to increase their production and offer more of the product to the market. On the other hand, when the price of a good or service decreases, suppliers have less motivation to produce and sell it. This is because they can earn less profit or even incur losses at the lower price. As a result, they will reduce the quantity supplied. In summary, the law of supply tells us that there is a direct relationship between price and quantity supplied. When the price increases, suppliers respond by increasing the quantity they are willing to supply to the market. Conversely, when the price decreases, the quantity supplied decreases.

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The measure that is presently used in Nigeria to measure inflation is the Consumer Price Index (CPI). The CPI is a commonly used indicator worldwide to track changes in the cost of living over time.
The Consumer Price Index (CPI) measures the average price changes of a basket of goods and services typically purchased by households in a specific country or region. It reflects the price movements of essential items such as food, housing, transportation, healthcare, education, and many other goods and services that people consume regularly.
The CPI is calculated by collecting price data for various items in the basket and assigning them weights based on their relative importance in household spending. The prices are then compared to a base period, which is usually a specific year. The percentage change in the CPI from the base period indicates the rate of inflation or deflation.
In Nigeria, the CPI is used to monitor and analyze changes in the cost of goods and services, allowing policymakers and economists to assess the impact on consumers' purchasing power and make informed decisions. It helps in determining the effectiveness of government policies, evaluating the performance of the economy, and adjusting wages and prices.
By tracking the CPI, the government can identify if there is an increase in the general level of prices, indicating inflation, or a decrease, indicating deflation. This information helps in formulating monetary and fiscal policies to control inflation rates and maintain price stability.
Overall, the Consumer Price Index (CPI) is the measure currently used in Nigeria to gauge inflation and is crucial in understanding how the cost of living changes over time, impacting the economy and the daily lives of individuals and businesses.

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An example of expansionary monetary policy by the Central Bank of Nigeria is "buying Treasury securities from commercial banks." Expansionary monetary policy is a type of policy implemented by the central bank to stimulate economic growth and increase the supply of money in the economy. This policy is typically used during times of economic downturn or recession to encourage spending and investment. When the Central Bank of Nigeria buys Treasury securities from commercial banks, it injects money into the economy. This increases the amount of money available in the banking system, making it easier for banks to lend to businesses and individuals. By increasing the money supply, the central bank aims to lower interest rates, which in turn encourages borrowing and spending. Lower interest rates mean that businesses and individuals can access credit more easily, leading to increased investment, consumer spending, and economic growth. This expansionary policy can help support economic activity, boost employment, and stimulate overall economic recovery.

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A normal demand curve slopes downward from left to right indicating at higher price, less quantity will be demanded and vice versa.

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When there is an increase in money income but the prices of goods and services remain the same, it will result in an outward shift in the budget line. To understand this, let's imagine a simple scenario where a person has a fixed amount of money to spend on different goods and services. This fixed amount of money represents their income. Now, if their income increases but the prices of goods and services they want to buy stay the same, they will have more money to spend. This means they can afford to buy more of each item. As a result, the budget line, which shows the different combinations of goods and services that can be bought with a given income, will shift outward. This indicates that they can now afford to buy a greater quantity of goods and services than before. Therefore, the correct answer is an "outward shift in the budget line" when there is an increase in money income with constant prices.

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The loans help to create poverty, as capital that could have been invested instead was channeled into debt repayment.

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Macroeconomics focuses on the units of an economy in an aggregative manner, meaning it looks at the economy as a whole rather than focusing on individual units. This helps us understand how different parts of the economy interact and influence each other.
The correct option is **household, firms, government, corporate sector, and external sector**. Macroeconomics analyzes the behavior and interactions of these units to understand the overall performance of the economy.
1. **Households**: These are the individual consumers who make up the economy. They play a vital role in determining the consumption and saving patterns that influence economic activities.
2. **Firms**: Firms are the businesses that produce goods and services in the economy. Macroeconomics looks at their investment decisions, production levels, and employment to understand the overall economic growth and productivity.
3. **Government**: The government plays a significant role in macroeconomics. It collects taxes, provides public goods and services, regulates the economy, and influences economic policies such as fiscal and monetary measures to stabilize the economy.

4. **External sector**: The external sector represents international trade and the flow of goods, services, and capital across borders. Macroeconomics considers factors like exports, imports, exchange rates, and foreign investment to understand the impact of global interactions on the economy.
By examining these units in an aggregative manner, macroeconomics helps us understand how changes in one sector affect the others and ultimately impact the overall performance of the economy.

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An industry is a group of firms producing similar products and under separate administration or management.

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The part of income after tax that is not consumed is defined as saving. Saving refers to the portion of income that is not spent on immediate consumption and is instead put aside for future use.
When we receive our income, we typically have various expenses to cover, such as bills, groceries, and entertainment. After deducting these expenses and taxes, we are left with a certain amount of money. If we choose not to spend this remaining amount and instead keep it for later, we are saving that money.
Saving is important because it allows us to build up financial security and prepare for unexpected expenses or future goals. It can also be used for long-term investments, such as buying a house or planning for retirement.
In summary, saving is the part of our income that we choose to set aside rather than using it immediately for consumption.

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The demand for a good is price inelastic if the price elasticity is less than one. Price elasticity measures how responsive the quantity demanded of a good is to a change in its price. If the price elasticity is less than one, it means that the quantity demanded is not very responsive to changes in price. In other words, a change in price will have a relatively small impact on the quantity demanded. Even if the price increases or decreases, people will still buy a similar amount of the good. This can happen when the good is a necessity or when there are limited substitutes available. For example, if the price of water increases, people will still need to buy a similar amount because water is essential for survival. Similarly, if the price of a specific medication increases, people with no alternative options will still purchase it regardless of the price. Therefore, when the price elasticity is less than one, we say that the demand for the good is price inelastic.

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The causes of overpopulation are: falling mortality rate, underutilized contraception, lack of female education etc.

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The principle that specifies that the amount, when, and how to pay tax should be made known to the taxpayer is known as the Principle of Certainty. This principle ensures that taxpayers have a clear understanding of their tax obligations, which includes knowing the amount of tax they owe, the deadline for payment, and the method of payment.
The Principle of Certainty is important because it promotes transparency and accountability in the tax system. By providing clear and specific information to taxpayers, it enables them to accurately calculate and plan for their tax obligations. This helps to avoid confusion or misunderstandings between the taxpayer and the tax authorities.
Furthermore, the Principle of Certainty also ensures fairness and consistency in the tax system. By clearly stating the rules and requirements, it ensures that all taxpayers are treated equally and that there is no ambiguity or room for arbitrary decisions in the tax assessment process.
Overall, the Principle of Certainty provides a solid foundation for the relationship between taxpayers and tax authorities. It establishes clear expectations, promotes compliance, and adds credibility to the tax system.

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When a generalization is made based on observed facts, it is called inductive reasoning. Inductive reasoning involves drawing conclusions from specific instances or examples to come up with a general statement or theory. This means that we observe a pattern or trend from the evidence we have and then make a generalization or inference based on that pattern. Inductive reasoning is different from deductive reasoning, which involves starting with a general statement or theory and then using it to predict or explain specific instances. In inductive reasoning, we start with specific observations and use them to make a broader generalization. It is important to note that while inductive reasoning can often lead to accurate conclusions, it is not always guaranteed to be correct. However, it is a common and useful method used in many fields such as science, sociology, and psychology.

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Investment multiplier (K) is a function of two factors; The MPS and MPC. If MPC is high, K will also be high but if MPC is low, K will also be low. on the other hand, If MPS is high, K will be low and if MPS is low, K will be high ( since there is an inverse relationship between MPS and K).

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Normative economics is a perspective on economics that reflects normative, or ideologically prescriptive judgments toward economic development, investment projects, statements, and scenarios. It expresses ideological judgments about what may results in economic activity if public policy changes are made.

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Investment is an activity of spending resources on creating assets that can generate income over a long period of time. It is flow of expenditures developed to projects producing goods which are intended for immediate consumption.

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Business cycle are intervals of expansion followed by recession in economic activity. It is characterized by general upswings and downturns in a span of macroeconomics variable.

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The correct term for the number of people who are qualified to work and who offer themselves for employment is the working population.
The working population refers to the subset of the total population that is actively engaged or seeking employment. It includes individuals who are qualified, available, and willing to work. This encompasses both employed individuals and those who are actively looking for work, such as job seekers.
The working population is an important measure for understanding the labor market. It helps policymakers, businesses, and economists in assessing the job market's health and determining factors such as employment rates, labor force participation, and unemployment rates.
Options like "mobility of labor" and "migrant labor" focus on the movement of workers between different locations, which is a related concept but not the same as the total number of qualified individuals available for employment. "Labor turnover" refers to the rate at which workers leave and join a particular company or industry, which is also not synonymous with the working population as a whole.
Therefore, the working population is the term that correctly describes the number of qualified individuals who are available for employment.

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The short run can be defined as the period of time during which at least one of the firm's inputs is fixed. In other words, it is a time frame in which the firm cannot easily or quickly adjust all of its inputs. This means that some resources, such as the size of a factory or the number of employees, cannot be changed in the short run.
During the short run, firms can only adjust their production levels by varying the amount of variable inputs, such as raw materials or utilities. The fixed input, which remains constant in this period, imposes limitations on the firm's ability to increase or decrease its output. This constraint on adjusting all inputs is what distinguishes the short run from the long run, where all inputs can be varied.
It is important to note that the length of the short run can vary depending on the industry and the specific circumstances of the firm. For some businesses, the short run may be a few months, while for others it could be several years. However, what remains consistent is that during the short run, the firm is restricted in its ability to modify certain inputs, which can impact its production and overall performance.

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Q = 14, P = 4

Qd = 30 - 4p

∆q/∆p = - 4
 

Ed = ΔqΔp×pq $\frac{<br>}{}$

= - 4 x 4/14

= Ed = -1.14
since price elasticity is positive, then Ed = 1.14

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To calculate the total product of cassava, we need to multiply the average production per person by the number of people.
In this scenario, we know that there were 40 men employed in the farm, and each person produced an average of 30 tonnes of cassava.
So, to find the total product, we need to multiply 40 by 30.
40 x 30 = 1200
Therefore, the total product of cassava is 1,200 tonnes.

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A multiplier is a factor of proportionality that measures how much an endogenous variable changes in response to a change in some exogenous variable such as investment, consumption, government expediture etc.

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The measure that represents the natural growth rate of a population is the **Birth rate minus the Death rate**, which is the second option. The natural growth rate of a population refers to the rate at which the population increases or decreases due to births and deaths, without taking into account migration. It solely focuses on the difference between the number of births and the number of deaths occurring within a population during a specific period of time. When the birth rate exceeds the death rate, it results in a positive natural growth rate, meaning the population is increasing. On the other hand, if the death rate is higher than the birth rate, it leads to a negative natural growth rate, indicating a decrease in the population. The first option, "Natural increase - Birth rate + Net migration," takes into account both the birth rate and the net migration (the difference between the number of people migrating into and out of a population in a specific period). This measure considers factors beyond just births and deaths, so it does not accurately represent the natural growth rate. The third option, "Birth rate/Death rate," is a ratio of the birth rate to the death rate. It does not give a measure of the natural growth rate itself, but rather shows the relationship between the number of births and the number of deaths. The fourth option, "Birth + Net migration = Death," suggests an equality between the sum of births and net migration and the number of deaths. This equation does not accurately represent the natural growth rate since it assumes that the number of births and net migration should exactly match the number of deaths, which is unlikely in most populations. Therefore, the most appropriate measure for the natural growth rate of a population is the **Birth rate minus the Death rate**.

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The fundamental problem of Economics is Scarcity. Scarcity explains the basic economic problem that the world has limited or scarce resources to meet seemingly unlimited wants, and this reality forces people to make decisions about how to allocate resources in the most efficient way.

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The Gross Domestic Product is the total monetary or market value of all the goods and services produced within a country. It is used to measure the rate of growth in an economy.

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The maximum price is **P4**. To explain why, we need to understand that the prices are listed in ascending order. This means that **P1** is the lowest price and **P4** is the highest price. When we say "maximum price," we are referring to the highest possible price among the given options. In this case, **P4** is the highest price listed. Therefore, the maximum price is **P4**.

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An indicator of underdevelopment is low per capita income. Per capita income refers to the average income earned by individuals in a country. In underdeveloped countries, the per capita income is generally low, meaning that people have lower incomes on average compared to developed countries.
Low per capita income is a significant indicator of underdevelopment because it directly affects the standard of living of people within a country. With low income, individuals have limited purchasing power, making it difficult for them to afford basic necessities such as food, clothing, and shelter. This can lead to overall poor living conditions and a lack of access to essential services like healthcare and education.
Additionally, low per capita income also implies limited economic opportunities and a weak economy. It suggests that the country's productivity and industrial development are low, leading to low wages and limited job opportunities. This can result in high levels of poverty and unemployment, further hindering the country's development.
In summary, low per capita income is a crucial indicator of underdevelopment because it reflects the overall economic situation of a country and directly impacts the living conditions and opportunities available to its citizens.

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Real cost is the cost of producing a good or service, including the cost of all resources used and the cost of not employing those resources in alternative uses.

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To calculate the elasticity of demand, we need to compare the changes in price and quantity demanded.
First, let's calculate the percentage change in price:
% change in price = ((new price - old price) / old price) x 100
% change in price = ((6 - 8) / 8) x 100
% change in price = (-2 / 8) x 100
% change in price = -25%
Next, let's calculate the percentage change in quantity demanded:
% change in quantity demanded = ((new quantity demanded - old quantity demanded) / old quantity demanded) x 100
% change in quantity demanded = ((30 - 20) / 20) x 100
% change in quantity demanded = (10 / 20) x 100
% change in quantity demanded = 50%
Now, let's calculate the elasticity of demand:
Elasticity of demand = % change in quantity demanded / % change in price
Elasticity of demand = 50% / -25%
Elasticity of demand = -2
The elasticity of demand is -2.
Explanation:
The negative sign in the elasticity of demand (-2) indicates that the demand for carrots is price elastic. This means that a decrease in price by 1% will lead to a more than proportionate increase in quantity demanded by 2%. In simpler terms, when the price of carrots decreased by 25%, the quantity demanded increased by 50%.
Therefore, the elasticity of demand is -2, which means that the demand for carrots is price elastic.

But since price elasticity is always represented with a positive number, the answer is 2