Demand refers to the quantity of a good or service that consumers are willing and able to purchase at various prices over a specific period. It reflects consumer preferences and purchasing power, influenced by factors such as price, income, tastes, expectations, and the prices of related goods. Law of Demand states that, ceteris paribus, as the price of a good decreases, its quantity demanded increases, and vice versa. Demand is graphically represented by a downward-sloping curve. Understanding demand helps businesses set prices, forecast sales, and design strategies, while policymakers use it to predict market behavior and economic outcomes.
Types of Demand:
1. Individual Demand vs. Market Demand
- Individual Demand: Refers to the quantity of a good or service that a single consumer is willing to buy at different prices over a period.
- Market Demand: The total quantity of a good or service demanded by all consumers in a market at various prices.
2. Price Demand
Refers to the relationship between the price of a product and its quantity demanded. It shows how demand changes with price fluctuations, assuming all other factors remain constant.
3. Income Demand
Represents how the quantity demanded changes with changes in consumer income.
- Normal Goods: Demand increases with rising income.
- Inferior Goods: Demand decreases as income rises.
4. Cross Demand
Refers to how the demand for a good changes due to changes in the price of related goods.
- Substitute Goods: Demand increases if the price of a substitute rises.
- Complementary Goods: Demand decreases if the price of a complement rises.
5. Joint Demand
Demand for goods that are used together, such as cars and fuel, or bread and butter.
6. Derived Demand
Demand for a good or service that arises from the demand for another good. For example, the demand for steel is derived from the demand for cars.
7. Direct and Indirect Demand
- Direct Demand: Goods consumed directly to satisfy wants, like food and clothing.
- Indirect Demand: Goods demanded for producing other goods, like machinery or raw materials.
8. Latent Demand
Refers to demand that exists but cannot be fulfilled due to a lack of purchasing power, awareness, or availability of the product.
9. Composite Demand
Demand for a good that has multiple uses, such as milk (used for drinking, making cheese, or yogurt).
