Economics 2025 Jamb Examination

In a monopoly, the market is dominated by a single seller who has significant control over the price of the commodity; therefore, the seller is a 'price maker' rather than a 'price taker'. The term 'price taker' applies to firms in a perfectly competitive market where many buyers and sellers exist, and no single entity can influence the market price. Monopolies are characterised by high barriers to entry that restrict new competitors, the absence of close substitutes, and the ability of the firm to set prices or output levels to maximise profit.

Specialisation of labour, often referred to as the division of labour, enhances production efficiency primarily because it allows workers to focus on a single task. By repeating a specific operation, workers develop greater speed and skill, and the time lost in moving from one type of work to another is eliminated. This leads to an increase in the total volume of output and a reduction in the unit cost of production. It does not make people experts in 'all' areas, but rather highly proficient in one specific area.

Joint supply occurs when two or more goods are produced from the same raw material or process, such that the production of one automatically leads to the production of the other (e.g., beef and hides). If the demand for commodity X increases, its price rises, encouraging producers to increase the production of X. Because Y is produced alongside X, the total supply of Y will naturally increase as a byproduct of the increased production of X. This often leads to a decrease in the price of Y because its supply has increased without a corresponding increase in its own demand.

A Consumers' Co-operative society is a voluntary association of people who come together to purchase goods in bulk at wholesale prices and sell them to themselves at lower retail prices. The ownership of the society lies entirely with its members, who contribute the capital through the purchase of shares. These members also democratically elect a management committee to oversee daily operations, but the ultimate authority and ownership remain with the membership. Profits, or 'surplus', are typically distributed back to the members based on their level of patronage.

In a free market or capitalist economy, the allocation of scarce resources is determined by the price mechanism, also known as the 'invisible hand'. Prices are set by the forces of demand and supply in the market. When the price of a good rises, it signals to producers that the good is in high demand, prompting them to allocate more resources to its production. Conversely, a fall in price suggests lower demand, leading to a reduction in resource allocation. This system operates without central government intervention, unlike a planned economy where a state committee would make these decisions.

Privatization is the transfer of ownership and control of government-owned enterprises to the private sector. The primary goal is to reduce government interference, enhance efficiency, and foster competition. Therefore, an argument that the government should continue to 'participate and control' the operations is contrary to the very objective of privatization. The policy aims to let private owners manage the business based on profit motives and market discipline, while the government shifts its role from management to regulation.

The Nigerian Industrial Development Bank (NIDB), which has since been merged into the Bank of Industry (BOI), was established specifically to foster industrial growth in Nigeria. Its primary objective was to provide medium to long-term financing (loans) and technical assistance to industrial enterprises, particularly in the manufacturing and processing sectors. By supporting manufacturers, the bank aimed to encourage local production, create employment, and reduce the country's dependence on imported finished goods. Farmers are typically supported by specialized agricultural banks, not industrial ones.

Net migration is a demographic measure that represents the difference between the number of people entering a country (immigrants) and the number of people leaving a country (emigrants) over a specific period. If the number of immigrants exceeds the number of emigrants, there is a positive net migration (net in-migration), which increases the total population. If emigrants exceed immigrants, there is a negative net migration (net out-migration). This figure is essential for calculating a country's total population growth, alongside the natural increase (births minus deaths).

The function \( X = a + bY \) is a first-degree equation, where \( a \) is the intercept and \( b \) is the slope or coefficient. In mathematics and economics, such an equation represents a straight line when plotted on a Cartesian coordinate system. Because the variables \( X \) and \( Y \) are raised only to the power of 1, the relationship between them is constant, resulting in a linear graph. Quadratic functions involve variables squared (\( Y^2 \)), resulting in a curve (parabola), while cubical functions involve variables cubed (\( Y^3 \)).

Balance of Trade (BOT) is a specific component of the Balance of Payments that records the difference in value between a country's visible exports (physical goods sold abroad) and its visible imports (physical goods bought from abroad) over a given period. If exports exceed imports, the country has a trade surplus; if imports exceed exports, it has a trade deficit. This is distinct from the Balance of Invisible Trade, which deals with services, and the overall Balance of Payments, which includes both visible and invisible items along with capital transfers.