Competitive Markets
Many firms selling similar products. Firms compete hard on price and quality — great for consumers, tough for firms' profit margins.
Small vs Large Firms
Small firms win on personal service and niche markets; large firms win on economies of scale — but risk diseconomies of scale if they overgrow.
Monopoly
One dominant seller, no real substitutes, huge barriers to entry. The firm is a "price-maker" — it decides the price, not the market.
Oligopoly
A small number of large firms dominate (think UK supermarkets). Firms are highly interdependent — they watch each other's every move.
Competition just means: how many firms are selling similar products in the same industry?
The more firms fighting for the same customers, the more competitive the market is — and the harder each firm
has to work to keep the customers it has, and steal customers from rivals.
Think of it like a school with one snack shop versus a school surrounded by five different snack shops.
With one shop, they can charge whatever they like and not bother improving the menu. With five shops nearby,
each one has to keep prices low, quality high, and keep innovating (new flavours, loyalty cards, etc.) or
students will simply walk to the next shop.
Core Rule
More competition → firms are forced to be efficient, keep prices low, and improve quality — but it can also
squeeze profits so hard that quality and worker pay suffer.
Advantages & Disadvantages — For Firms
| Advantages | Disadvantages |
|---|
Efficiency — competition forces firms to lower production costs
Less waste — firms trim waste to keep costs down
Better quality — firms improve products to stand out in a crowded market
Innovation — firms research and develop new products to attract customers
|
Poor quality — firms may cut corners or use cheaper materials to lower prices
Worker welfare — thin profit margins can mean low wages and poor working conditions
|
Advantages & Disadvantages — For Consumers
| Advantages | Disadvantages |
|---|
More choice — more sellers means more options
Better quality products — firms compete on quality
Innovation — consumers get new and improved products
Lower prices — firms cut prices to win market share
|
Poor quality output — quality can deteriorate with repeat purchases as firms cut costs
Too much choice — consumers get overwhelmed and just stick to what they know
Low wages — many competitive-market jobs pay poorly
|
Advantages & Disadvantages — For the Economy
| Advantages | Disadvantages |
|---|
Efficiency — less waste of scarce resources
Innovation — improved goods/services raise living standards over time |
Low innovation
Low profit levels
|
💡 Notice the pattern