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What it Means to Substantially Lessen Competition

The concept of “Substantially Lessening Competition” is a test used to determine whether certain conduct breaches competition laws in Australia.

Substantially lessening competition refers to conduct that negatively impacts competition in a market to a significant degree. It involves reducing the intensity of competition, which can lead to:

  • higher prices
  • reduced quality
  • less innovation
  • limiting the competitive process
  • harm to smaller players
  • monopolistic practices

The conduct must have some meaningful impact and be relevant to the competitive process. Further, it must have the effect or likely effect of preventing or hindering competition. The word ‘substantial’ conveys a high threshold, but it is not.

The ultimate goal is to protect competition and prevent behaviour that harms consumers and businesses.

This article is written by our Director, an Australian eCommerce lawyer.

Farrah Motley holds degrees from the Queensland University of Technology in both law and accounting. Farrah is a registered Australian Legal Practitioner and has been pracising employment law for over a decade

When does something substantially lessen competition?

The follow factors are relevant to determining whether behaviour substantially lessens competition:

What is the ‘market’?

The Competition and Consumer Act defines “market” as a market in Australia. In relation to goods or services, it extends to any goods and services which are substitutable for or competitive with, those goods or services.

To identify the relevant ‘market’, you will need to consider:

  • the effect that a change in the price of goods or services may have on the price of other interchangeable goods and services
  • the maximum range of business activities and the widest geographical area within which the effect of changes in the price of the good or service will have on the quantity demanded of another good or service

Does the business have market power?

Market power refers to the degree of control a company has over prices and goods and/or services. Having market power is not anti-competitive. However, misusing market power to reduce competition is anti-competitive.

What is the structure of the market?

Market structure refers to the number of competitors, barriers to entry, and market concentration.

To figure out who is a competitor, consider:

  • how many sellers there are and how big they are. How concentrated is the market?
  • the barriers that may be faced by new competitors to the market
  • the extent to which goods or services of the industry are subject to extreme product differentiation and sales promotions
  • how companies within the market have restricted their independence through formal, stable and fundamental arrangements
  • the nature and extent of vertical relationships and integration between customers and suppliers

A company can be both a supplier and a customer of another business.

What is the effect on consumers?

Consumers may be affected by higher prices, less choice, or reduced quality of goods or services.

What would the market look like if the conduct did not occur?

If demand and supply would continue largely unaffected by the behaviour, the conduct is unlikely to be unlawful.

substantially lessening competition

Substantially lessening competition and the Competition and Consumer Act 2010

The substantially lessening competition test is relevant to various sections of the Competition and Consumer Act 2010 in assessing whether conduct is anti-competitive. Those sections are set out below. Each of the activities below are only illegal if they substantially lessen competition.

Section 45 – prohibition against conduct that has the purpose, effect, or likely effect of substantially lessening competition

You don’t need to have a written contract for the sale of goods or services. Cooperation between parties, and even sharing information, can be illegal. However, cooperation between competitors is more likely to have the effect of substantially lessening competition.

Dominant companies are not allowed to abuse their market position to harm competition.

Exclusive dealing occurs when a business is limited by its trading partner from:

  • choosing what it buys or sells
  • deciding who it does business with, or
  • determining where it trades

Exclusivity agreements are not uncommon. However, care must be taken where the effect of an exclusivity arrangement is anti-competitive.

Consolidation that reduces consumer choices, increases prices, or decreases innovation and product quality may lessen competition.

Case law examples​

ACCC v Flight Centre (2016)

The ACCC said that Flight Centre attempted to induce airlines to agree not to offer lower prices on their websites than those available through Flight Centre. The ACCC said this would potentially reduce competition.

The High Court found that Flight Centre’s conduct did substantially lessen competition by attempting to control pricing across different sales channels. This was despite Flight Centre not being a direct competitor to the airlines.

Although Flight Centre was an agent, its actions impacted the competitive process in a manner that could have resulted in less competitive pricing options for consumers.

Visa was accused of restricting the ability of Dynamic Currency Conversion (DCC) providers from offering services on Visa’s network. The ACCC argued this would substantially lessen competition in the currency conversion market.

Visa’s conduct was found to substantially lessen competition by preventing DCC providers from competing effectively in the market. Visa’s conduct prevented merchants and consumers from accessing competitive DCC services. This limited choice and reduced market competitiveness.

The ACCC claimed that Pfizer used its market power to lock in pharmacies to its Lipitor cholesterol-lowering drug before losing patent protection. The result was said to potentially lessen competition in the generic drug market.

The Federal Court ruled in favour of Pfizer. The Court found that while Pfizer’s behaviour was strategic, it did not substantially lessen competition because the market was expected to shift to generic competitors regardless.

The Court highlighted that generic competitors were inevitable and there was no substantial impact on their ability to enter the market. Therefore, competition wasn’t significantly reduced.

Frequently Asked Questions

What are the consequences of anti-competitive behaviour that reduces competition?

Conduct that substantially lessens competition can lead to significant penalties. This may include fines, disqualification of directors, or orders for companies to change their conduct. The ACCC may also block mergers or acquisitions.

If the ACCC or a private party takes legal action, courts are responsible for determining whether the conduct substantially lessens competition. Courts will look at evidence, market conditions, and the effects of the conduct on competition.

By breaching sections 45, 46, 47 or 50:

  • businesses may face fines of up to $50 million or more
  • individuals can face fines of up to $500,000

Courts can also issue injunctions to stop anti-competitive conduct.

About the Author

Farrah Motley
Director of Prosper Law. Farrah founded Prosper online law firm in 2021. She wanted to create a better way of doing legal work and a better experience for customers of legal services.

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