There is no supply and demand graph to draw. The College Board leaves graph drawing out of this exam, so what you need is the logic in words.
The key ideas
What a market is and why exchange is voluntary
A market is any physical or virtual space where sellers meet buyers. It can be local, regional, or worldwide. A Saturday farmers market is a market, and so is an online marketplace like Etsy.
Exchange in a market is voluntary. Sellers earn revenue, and buyers get something they need or want. Nobody is forced, which is why both sides walk away believing they came out ahead.
A student lists a used laptop at $400. A buyer offers $300. They settle at $350. Neither got the ideal price, and both agreed freely.
How a market price forms
Sellers want higher prices to earn more profit. Buyers want lower prices to save money. In a competitive market, those two pulls tend to settle on a prevailing market price.
Competition keeps the price from drifting, because buyers leave a seller who charges far more than everyone else.
Two gas stations sit across the street from each other. If one charges 40 cents more per gallon, drivers cross the road. Within a few days the prices end up within a few cents of each other.
Competitive advantage
Competitive advantage is the ability to outperform rivals in the same market. When it works, the business wins more market share, which is its portion of total sales in the market, and it can earn more profit.
How a business pursues it depends on the market. The course points to how many rivals there are, how different their products are, and how easily a rival can offer the same thing for less.
A new sneaker brand wins ten percent of sales in a crowded market by offering a feature no rival has. Ten percent is its market share, and the feature is its competitive advantage.
Matching the strategy to the market
When products are close to identical and there are lots of sellers, buyers compare price. These are commodity markets, and wheat, corn, and gasoline work this way. A business here competes by producing as efficiently as it can, so it still profits at the lowest price.
When products differ from each other, a business can win by showing that its product is better. It might offer higher quality, a unique feature, better service, a lower price, or smarter marketing.
A corn farmer cannot charge a premium because every bushel is the same, so lowering the cost per bushel is the main tool. Apple does the opposite. An iPhone costs more than many phones, and buyers pay for the design, the software, and how it works with their other Apple devices.
Barriers to entry and monopoly
A barrier to entry is anything that makes it hard for a newcomer to compete. Patents and other protected ideas, licenses and rules, scarce suppliers, big upfront costs, and rivals who can sell cheaper because they are huge all count. A business that already has an advantage may build or strengthen these on purpose.
A monopoly is a market with no competition, where one business offers a unique good or service. The test is whether a close substitute exists. If it does not, you are looking at a monopoly.
A drug company with a patent on a new allergy medicine can legally block copies. A new airline faces huge startup costs before it sells a ticket. Your local electric utility is usually the only company serving your street, and a rival power grid would cost more than any newcomer could raise.
Key terms
- Market
- any physical or virtual space where businesses interact with customers to exchange goods or services.
- Voluntary exchange
- a transaction both sides choose to enter.
- Market price
- the prevailing price that sellers and buyers tend to settle on in a competitive market.
- Competitive advantage
- the ability to outperform rival businesses in the same market.
- Market share
- the portion of total sales in a market that one business controls.
- Commodity
- a good that is essentially identical no matter who sells it, so price drives the buying decision.
- Differentiated product
- a product with features that distinguish it from rival products.
- Barrier to entry
- an obstacle that makes it difficult for a new firm to compete in a market.
- Patent
- intellectual property protection that blocks rivals from legally copying a specific invention.
- Monopoly
- a market with no competition, where one business offers a unique good or service.