Overview of Porter’s Five Forces Model

Running a business is not just about having a good product. A company may have a product people like and still struggle to make money if competitors keep lowering prices, customers have too many choices, or suppliers can charge whatever they want.

This is where Porter’s Five Forces Model comes in.

Developed by Harvard Business School professor Michael E. Porter, the model is used to look at how competition works within an industry. What makes it useful is that it does not stop at the question, “Who are our competitors?” It also looks at customers, suppliers, new businesses entering the market and other products that could meet the same customer need.

Together, they give businesses a better idea of how much pressure exists in a market and what that pressure could mean for profitability. Read on to know more!

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What Is Porter’s Five Forces Model?

Porter introduced the Five Forces framework in 1979 as a way of understanding industry competition. The five forces are:

1. Competitive rivalry
2. Threat of new entrants
3. Bargaining power of suppliers
4. Bargaining power of buyers
5. Threat of substitutes

The Five Forces Explained

Here is how each of the five forces works. Each one is a channel through which profit leaks out of an industry.

1. Competitive Rivalry

This is probably the force people think of first when they hear the word “competition.”

Competitive rivalry looks at how hard existing businesses are fighting for customers. When several companies offer similar products, the pressure can be considerable. They may compete through price, advertising, product features, distribution or customer service.

The fast-food market is a simple example. McDonald's, Burger King and other chains are competing for many of the same customers. A discount from one brand can quickly lead another to introduce a similar offer.

2. Threat of New Entrants

Every established business has to deal with the possibility of a new competitor entering the market. The important question here is: How difficult is it to get in?

If a new company can start with relatively little money, find suppliers easily and reach customers without much difficulty, existing businesses have less protection.

The opposite is true in industries with high entry barriers. For example, starting an airline, for instance, requires substantial investment in aircraft and infrastructure, along with trained staff and regulatory approvals. A new player cannot simply decide to enter the market next week.

3. Bargaining Power of Suppliers

Suppliers can have a surprisingly large influence on a company's profitability.

Imagine that a manufacturer needs a particular component and only one or two suppliers can provide it. If the supplier increases its price, the manufacturer may have very little room to negotiate. Finding an alternative could take time, cost money and potentially disrupt production. That is supplier power.

A business is in a stronger position when it has several suppliers to choose from. It can compare prices, negotiate terms and change suppliers if necessary.

4. Bargaining Power of Buyers

Now turn the situation around. Buyers have bargaining power when they have enough choices to influence what businesses charge or offer.

Online shopping makes this easy to see. A customer looking for a pair of headphones can compare prices from several sellers in a matter of seconds. If one seller is charging significantly more for the same product, there is little reason for the customer to stay.

Buyer power tends to be high when products are similar, switching is easy and customers have plenty of information. It can also be high when a small number of large customers account for a significant part of a company's sales.

5. Threat of Substitutes

This force is easy to misunderstand. A substitute is not necessarily another company selling the same thing. It is an alternative way of meeting the same need.

For example, video conferencing can replace some business travel. Streaming platforms have reduced the need for traditional television viewing for many people. Email can handle communication that once required physical mail.

Companies therefore need to pay attention not only to what their competitors are doing but also to changes in how customers solve their problems.

Why Does Porter’s Five Forces Matter?

The value of the model lies in the questions it forces a business to ask.

A company may think it operates in a market with little competition because there are only a few direct rivals. But a closer look might reveal that customers can switch easily, suppliers are expensive or a new technology is creating an alternative.

Five Forces can be particularly useful when a company is considering entering a new market, launching a product, expanding into another region or reviewing its current strategy.

It can also help identify where a business is most vulnerable. If suppliers have too much power, for example, the company might look for alternative sources. If customers are highly price-sensitive, differentiation may become more important.

Limitations of Porter’s Five Forces

Porter's model is useful, but it is not a complete picture of an industry.

One issue is that markets do not always stay still. Technology can change an industry very quickly. Consumer preferences can shift, new regulations can appear and economic conditions can alter how people spend their money.

The framework also focuses mainly on external competition. It does not tell a company whether it has the right employees, technology, finances or capabilities to take advantage of an opportunity.

For that reason, businesses often use Five Forces with other frameworks, such as SWOT analysis, PESTLE analysis and value chain analysis.

Wrapping Up

Porter’s Five Forces Model is ultimately about understanding where the pressure in a market comes from.

It looks at existing competitors, potential new entrants, suppliers, buyers and substitutes. Some industries may face strong pressure from all five. In others, one or two forces may be much more important than the rest. The model does not tell a company exactly what strategy to follow. Instead, it gives decision-makers a way to examine the market before making that decision.

That makes it useful for businesses evaluating a new market, assessing their competitive position or simply trying to understand why making profits in a particular industry is easier for some companies than others.