A firm is a business organisation that produces goods or services to sell in the market. Think of a firm as a chef who mixes ingredients (factors of production) to create a tasty dish (product) that customers want to buy.
The production process turns inputs (factors of production) into outputs (products). It can be shown by the production function:
\$Q = f(L, K, R)\$
where \$Q\$ = quantity of output, \$L\$ = labour, \$K\$ = capital, \$R\$ = raw materials.
📈 Analogy: Imagine you’re baking a cake. The batter (labour + raw materials) and the oven (capital) combine to produce a cake (output).
Each factor is a resource that a firm must acquire to produce goods.
Demand for the Product – If a product becomes popular, the firm needs more inputs.
📊 Example: A surge in demand for electric cars increases the demand for batteries (raw materials) and assembly line workers (labour).
Price of Factors – Higher wages or higher capital costs can reduce the quantity of that factor demanded.
💰 Formula: If \$w\$ = wage rate, the firm will hire fewer workers when \$w\$ rises, all else equal.
Availability – Scarcity of a factor (e.g., rare earth metals) limits production.
⚙️ Analogy: If a key ingredient is out of stock, the chef can’t make the dish.
Productivity – More productive factors allow the firm to produce more output with the same input.
📈 If a new machine cuts production time by 30%, the firm can produce more units without hiring more workers.
| Factor | Influence | Example |
|---|---|---|
| Labour | Demand rises with product demand; falls if wages rise. | More workers hired when smartphone sales increase. |
| Capital | Demand rises with higher output; falls if capital costs increase. | New assembly line built when demand for electric cars spikes. |
| Raw Materials | Demand rises with product demand; limited by availability. | Battery shortages limit electric car production. |