WAEC Economics 2018
Questions & Answers

A student might mistakenly choose to produce goods because production is a visible part of economic activity that happens before selling. Markets fundamentally exist to enable the exchange of goods and services between buyers and sellers, which in turn permits economic specialization and efficient resource allocation. Common mistake: Confusing the manufacturing of goods with the transactional purpose of a marketplace.

A student might mistakenly select competition because it is a dominant feature of capitalist economies that students encounter frequently. In a command-driven system, the government centrally plans pricing, production, and distribution to fulfill social and economic objectives, standing in direct contrast to market-driven traits like private ownership and competition. Common mistake: Confusing market-economy features like competition with centrally planned systems.

A student might mistakenly choose to decrease demand for the related good by assuming higher prices always depress purchasing across the board. Substitute goods can replace each other; thus, when the price of one rises, consumers shift toward the cheaper alternative, increasing the demand for the related good through positive cross elasticity. Common mistake: Assuming higher prices for a substitute will lower rather than raise the demand for its alternative.

A student might mistakenly choose technological improvement because they confuse factors that expand supply with those that reduce it. Higher input prices drive up production costs, which forces the supply curve to shift leftward and decreases supply at every price level, unlike factors such as subsidies or better technology. Common mistake: Confusing cost-increasing factors with productivity-enhancing factors.

A student might mistakenly pick the cost of production because costs heavily influence supply rather than demand relationships between goods. Cross elasticity of demand evaluates the percentage change in quantity demanded for one good relative to the percentage change in the price of another good, indicating whether they are substitutes or complements. Common mistake: Confusing cross-price relationships with production cost factors.

A student might mistakenly choose substitutes because they confuse the direction of price and demand movement. A negative cross elasticity signifies that the demand for a good drops when the price of another rises, which is the characteristic behavior of complementary goods used together, such as tea and sugar. Common mistake: Confusing the negative cross-elasticity sign of complements with substitutes.

A student might mistakenly select total revenue exceeds total cost because they associate it with profitability rather than a shutdown condition. In the short run, if total revenue cannot cover total costs, a firm minimizes its losses by shutting down, since continuing operations would rack up losses greater than fixed costs alone. Common mistake: Choosing a profitable condition as the trigger for a firm to shut down.

A student might mistakenly choose coal because it is a natural resource extracted from the earth. Forests are categorized as renewable because trees are capable of being replanted and regrown naturally or through management, unlike non-renewable fossil fuels like coal, oil, and natural gas that deplete over time. Common mistake: Grouping all earth-based natural resources together as non-renewable.

A student might mistakenly choose costs that can be recovered by confusing them with variable or recoverable expenses. Sunk costs are past, irrecoverable expenditures that have already been made and hold no relevance for future economic decisions, such as funds spent on a failed research project. Common mistake: Treating past irrecoverable expenditures as factors that can be recovered in future planning.

A student might mistakenly select price fixing because firms often coordinate or manipulate pricing in certain market structures. In monopolistic competition, businesses differentiate their products through branding and advertising to create perceived uniqueness, granting them a degree of price control. Common mistake: Confusing product differentiation tactics with illegal price-fixing practices.

A student might mistakenly choose prices are rising rapidly by confusing it with inflation. Deflation represents a sustained decrease in the general price level that often suppresses spending and contracts economic activity, acting as the direct opposite of inflation. Common mistake: Confusing falling price levels with rising price inflation.

A student might mistakenly pick open market operations because it is a well-known macroeconomic policy tool. Fiscal policy relies specifically on government spending and taxation to sway the economy, meaning government expenditure directly affects aggregate demand unlike monetary tools. Common mistake: Confusing central bank monetary policy tools with government fiscal policy tools.

A student might mistakenly select foreign direct investment because it involves international monetary flows. The current account tracks transactions in visible trade, services, income, and unilateral transfers, capturing a nation's overall trade performance. Common mistake: Confusing capital and financial account items with current account transactions.

A student might mistakenly choose imports are greater than exports by confusing a surplus with a deficit. A trade surplus arises when the financial value of exports exceeds imports, which adds positively to the current account and signals a net inflow from trade. Common mistake: Confusing a trade surplus with a trade deficit.

A student might mistakenly choose increase imports by assuming currency changes affect incoming goods the same way they affect outgoing ones. Revaluation appreciates the domestic currency, which elevates prices for foreign buyers and consequently decreases export volume while making imports cheaper. Common mistake: Confusing the impact of currency revaluation on exports versus imports.

A student might mistakenly select defense because it often commands a visible share of national budgets. In many developing countries, such as Nigeria in 2018, infrastructure receives the largest capital allocation within government spending to foster economic growth and development. Common mistake: Assuming defense takes the largest budget share instead of infrastructure.

A student might mistakenly choose the tax rate increases with income by confusing regressive taxation with progressive taxation. Regressive taxes claim a larger percentage of income from low-income earners because the tax burden decreases as income rises, as seen with sales taxes on essentials. Common mistake: Confusing progressive tax structures with regressive tax structures.

A student might mistakenly select they are easy to collect by focusing on administrative convenience rather than a drawback. Direct taxes, such as income tax, suffer from vulnerability to evasion through underreporting, which in turn demands costly enforcement administration. Common mistake: Confusing the administrative collection process with the vulnerability to tax evasion presents.

Students might mistakenly choose option A or D because they associate large operations with high expenses or mistakes, but output expansion actually works differently. By utilizing bulk purchasing, efficient resource use, and specialization, average costs are lowered through economies of scale, thereby enhancing competitiveness. Common mistake: Confusing the size of total expenditures with per unit expenses.

Option A or C might look correct to students who confuse market concentration with either complete monopoly or perfect competition. Instead, this structure features a small number of large firms dominating the market, which creates interdependence in pricing and output decisions, and often includes barriers to entry. Common mistake: Assuming a few large firms is the same as a single seller.