Demand, Supply and Price Determination

A raw agricultural commodity such as sugarcane is required for several alternative uses, including the production of refined table sugar, bio-ethanol fuel, and livestock feed processing. Which type of demand best describes the market demand for sugarcane?

An increase in the price of petrol causes a decline in the market demand for motor cars, whereas an expansion in motor car manufacturing leads to a higher demand for steel. What types of demand are illustrated by petrol for cars, and steel for car production, respectively?

Match each economic market scenario on the left with its corresponding classification of demand on the right.

A cocoa processing firm in Nigeria faces various market developments and regulatory shifts. Match each economic scenario on the left with its corresponding impact on the supply of processed cocoa on the right.

In a regional market, Cassava flour (Good $X$) and Yam flour (Good $Y$) are substitute goods in competitive demand, while Yam flour (Good $Y$) and Egusi seeds (Good $Z$) are in joint demand. A sudden government tax increases the market price of Cassava flour (Good $X$), while consumer average disposable income simultaneously falls across the region (assuming Yam flour is a normal good). Which of the following correctly describes the underlying shift mechanisms and structural impacts on the demand curves for Yam flour (Good $Y$) and Egusi seeds (Good $Z$)?

Match each fundamental economic concept under the law of demand with its correct definition or description.

In Nigeria's agricultural sector, cattle rearing simultaneously yields beef and hides, whereas raw cassava tubers can be processed into either garri or industrial starch. If an expansion in livestock farming occurs alongside a major shift by processors toward industrial starch production, what will be the effect on the market supply of hides and garri?

An increase in the price of yam leads to a rise in the demand for cassava as consumers switch to an alternative staple food. What type of demand is demonstrated by cassava in this market scenario?

Match each economic commodity or scenario on the left with its corresponding classification of demand on the right.

Which of the following factors will cause an outward (rightward) shift in the demand curve for a normal good?

The supply function for a commodity is given by $Q_s = -20 + 5P$, where $Q_s$ is the quantity supplied in units and $P$ is the price in Naira ($\text{N}$). What is the quantity supplied when the price per unit is $\text{N}10$?

An oil refinery in Nigeria expands its distillation operations to satisfy a surge in domestic demand for Premium Motor Spirit (PMS). Because diesel and bitumen are derived from the exact same crude oil refining process alongside PMS, how will the market supply of diesel be affected?

Match each demand phenomenon or theoretical principle under the Law of Demand with its corresponding economic description.

A commercial farmer uses a fixed parcel of land to cultivate either maize or cassava. Allocating more land to cassava cultivation automatically reduces the amount of land available for maize production. Which type of supply is demonstrated by cassava and maize in this scenario?

Match each economic scenario on the left with its correct effect on the supply curve of a commodity on the right.

In Nigeria's wood processing industry, an increase in the demand for sawn timber causes a rightward shift in the supply curve of sawdust because timber and sawdust exist in a competitive supply relationship.

In a Nigerian urban market, a fall in the price of Liquefied Petroleum Gas (LPG) leads to a decline in household purchases of Kerosene stoves, even though the price of Kerosene stoves remains unchanged at $\text{N}25,000$. Two months later, manufacturers reduce the retail price of Kerosene stoves to $\text{N}20,000$, causing the quantity of Kerosene stoves purchased by consumers to increase. Which of the following statements correctly distinguishes the economic changes occurring in the market for Kerosene stoves during these two events?

The demand and supply functions for a commodity are given as $Q_d = 50 - 4P$ and $Q_s = 10 + 6P$, where $P$ represents the price in Naira, $Q_d$ is the quantity demanded, and $Q_s$ is the quantity supplied. What is the equilibrium price of the commodity?

An economic survey in a local market reveals that when the price of a gallon of vegetable oil increases from $₦8,000$ to $₦10,000$, a household reduces its monthly consumption from $5$ gallons to $4$ gallons, assuming all other factors remain constant (ceteris paribus). Which of the following best describes this economic outcome?

Given the demand function for a commodity as $Q_d = 100 - 5P$ and the supply function as $Q_s = 20 + 3P$, where $P$ represents the price in Naira ($₦$), calculate the equilibrium quantity.