A need is something people must have. A want is something they would like. Demand is the quantity people are both willing and able to buy at a stated price.
Only demand turns an interest into a market a business can serve.
This skill opens enterprise and business purpose. It returns in market research, pricing and revenue questions.
How do needs, wants and demand connect?
Start with the person. A need such as drinking water is required to live. A want such as bubble tea is a wish.
Now add money and a price. Demand exists only when a person has the money, is ready to spend it, and accepts the price. A business that counts every wish as a customer will overestimate sales.
Demand also changes with price. At a lower price more people are willing to buy. At a higher price fewer are.
Worked example
Ruang Tenang is a planned study café near a group of colleges in Seremban. The owner surveys 400 students.
- 300 say they would like a quiet place to study.
- At RM8 an hour, 120 say they would pay.
- At RM12 an hour, 45 say they would pay.
Step 1, find the wish. 300 out of 400 want a quiet place. That is interest, which students may even feel as a need in exam weeks.
Step 2, find demand at each price. Demand at RM8 is 120 students. Demand at RM12 is 45 students.
Step 3, check the pattern. Higher price, fewer buyers. That fits how demand usually behaves.
Step 4, compare revenue for one hour of use each. At RM8: 120 × 8 = RM960. At RM12: 45 × 12 = RM540. The lower price earns more here.
Conclusion. The market the café can serve is not 300. It is 120 at RM8 or 45 at RM12.
The mistake to watch for
Mistaken answer: “There is demand from 300 students, so the café will earn 300 × RM12 = RM3,600 an hour.”
This counts everyone who said they like the idea as a buyer and applies the higher price to all of them.
The correction is to ask two questions of every group of people: can they pay, and will they pay at this price? At RM12, only 45 say yes, so the revenue estimate is RM540, not RM3,600. In an exam answer, name the price and the number of buyers together.
Check yourself
1. Sort these into need or want for a typical student: clean drinking water, a branded sports bag, a place to sleep, a games console.
Show answer
Needs: clean drinking water and a place to sleep. Wants: a branded sports bag and a games console. Needs are required to live or function. Wants are things a student would like but could do without.
2. In a taman, 80 families say they would love a ceramic tiffin set at RM60. When asked if they will buy one this month at that price, only 25 say yes. How many people form the demand at RM60?
Show answer
Demand is the number willing and able to buy at that price, so 25. The other 55 show interest, not demand at RM60. Check: 80 − 25 = 55.
3. A bubble tea stall raises its price from RM15 to RM20 for a large cup. Weekly buyers fall from 90 to 50. Find the weekly revenue at each price.
Show answer
At RM15: 90 × 15 = RM1,350. At RM20: 50 × 20 = RM1,000. The higher price brings lower revenue because the fall in buyers is large. Revenue fell by RM350.
Where this leads next
Next, look at what a start-up gives up when it commits to one idea in opportunity cost. The cash versus profit bridge shows how a sale at a given price turns into cash later.
Some students recognise the vocabulary but still write answers that could fit any shop. A teacher in online one-to-one Business tuition can ask the case question back to you until demand is tied to the actual customers in front of you.