"Best prices" clauses and competition law in practice
There are several examples at both the UK and EU level of competition regulators taking action against parity or MFN clauses. However, these cases have tended to focus on "retail price parity" obligations concerning prices charged to the consumer, rather than "best prices" clauses focused on the prices charged to e.g. distributors at the upstream, wholesale supply level.
By way of example, competition authorities in the UK and elsewhere in Europe have previously investigated retail MFNs imposed by online booking platforms and price comparison websites. Broadly speaking, this has resulted in a general consensus that "wide" clauses (which effectively prohibit businesses featured on those sites from offering lower prices through any other sales channels) are more likely to be problematic than "narrow" clauses (which only prevent the relevant business from offering lower prices through its own website). However, there are differences in approach from jurisdiction to jurisdiction – the UK, for example, has taken a stricter approach than the European Commission by regarding "wide" retail MFNs as "hardcore" restrictions (i.e. akin to prima facie illegal) under the newly adopted UK Vertical Agreements Block Exemption Order. That does not mean that "narrow" clauses do not also still carry at least a degree of competition law enforcement risk – although that will depend on e.g. the platform's market power and the clause's likely effects. Certain other national jurisdictions, such as Germany, have also taken a strict approach in the past, including as regards "narrow" retail MFNs. Meanwhile certain jurisdictions have sector-specific legislation dealing with these clauses and the EU Digital Markets Act prohibits the use of both wide and narrow retail parity clauses by large online platforms deemed as "gatekeepers".
Exactly how such retail MFNs will be analysed may therefore depend on the specific regulator and industry context. However, what is clear is that, regardless of the context, particular caution is advisable before imposing and exercising retail price parity obligations of this type. In the UK specifically, the position remains somewhat unclear, following a successful challenge by Compare the Market to the CMA's decision to fine it £17.9 million for use of a "wide" clause – although much turned on the specific facts of that case and the CMA's approach.