The price of a concert ticket is set below the market equilibrium price. According to market equilibrium theory, what sequence of events follows?
AA surplus develops; sellers lower prices further to clear their excess inventory
BA shortage develops; buyers compete for scarce tickets and bid prices upward
CThe market stays at the below-equilibrium price indefinitely since sellers control the price
DA shortage develops; the government must intervene to restore the equilibrium price
Below equilibrium, quantity demanded exceeds quantity supplied — a shortage. Buyers who cannot get tickets at the current price are willing to pay more; sellers realize they can charge more without losing buyers. This upward pressure from competing buyers drives prices toward equilibrium. No external intervention is required — the adjustment arises entirely from the decentralized incentives of individual buyers and sellers responding to scarcity signals.
Question 2 Multiple Choice
At the equilibrium price, buyers wish they could pay less and sellers wish they could charge more. Why doesn't the price change?
ABoth sides have negotiated and agreed to accept the equilibrium price
BThe equilibrium price is the only price where neither surplus pressure (pushing prices down) nor shortage pressure (pushing prices up) exists
CGovernment regulations prevent prices from moving once equilibrium is reached
DThe equilibrium price represents the average of all buyers' willingness to pay
The equilibrium price persists not because everyone is satisfied, but because the opposing pressures cancel out exactly. Above equilibrium, a surplus creates downward pressure as sellers compete. Below equilibrium, a shortage creates upward pressure as buyers compete. At the exact equilibrium price, these forces balance — there is no incentive for the price to move. It's a stable resting point, not an agreed-upon compromise.
Question 3 True / False
When quantity supplied exceeds quantity demanded, sellers respond by raising prices to increase revenue from the unsold inventory.
TTrue
FFalse
Answer: False
A surplus means sellers hold unsold inventory. Their incentive is to lower prices — not raise them — to attract more buyers and move product. Raising prices in a surplus would further reduce quantity demanded, worsening the problem. Downward price pressure from surplus is one of the two core mechanisms by which markets self-correct toward equilibrium; it arises from sellers competing with each other to make sales.
Question 4 True / False
Market equilibrium is a state where the forces of supply and demand are balanced, meaning neither buyers nor sellers have unmet wants at the equilibrium price.
TTrue
FFalse
Answer: False
This is a subtle but important misstatement. At equilibrium, quantities supplied and demanded are equal — the market clears — but buyers and sellers typically still have unmet desires: buyers would prefer lower prices, sellers would prefer higher ones. Equilibrium doesn't mean everyone is satisfied with the price; it means there is no net pressure for the price to change. The balance is between the competing market forces, not between the preferences of buyers and sellers.
Question 5 Short Answer
Why does a surplus cause prices to fall and a shortage cause prices to rise? Explain the mechanism rather than just stating that it happens.
Think about your answer, then reveal below.
Model answer: In a surplus, sellers have more goods than buyers want at the current price, so unsold inventory accumulates. Individual sellers face a concrete choice: hold inventory idle or lower prices to attract buyers. Competition among sellers drives prices down. In a shortage, buyers want more than sellers offer at the current price — buyers who would pay more bid up the price, and sellers realize they can charge more without losing sales. Competition among buyers drives prices up. In both cases, the price movement is a product of individual self-interest, not coordination.
The mechanism is entirely decentralized. No authority determines the equilibrium price; it emerges from the self-interested responses of many individuals. This is why economists say prices are 'discovered' by markets — equilibrium arises from the simultaneous competition among buyers (pushing price up in shortage) and among sellers (pushing price down in surplus). Understanding the mechanism matters because it explains why price controls that prevent this adjustment create persistent shortages or surpluses.