Competitive parity: as a strategy and a budget method

Competitive parity means matching your competitors rather than beating them. The term has two common uses. As a strategy, it means offering the same features, service or price as rivals so you are not at a disadvantage. As a budgeting rule, the competitive parity method sets your advertising spend to match what competitors spend.

Both are reasonable as a floor and dangerous as a goal.

Competitive parity as a strategy

Parity is what you have when you are as good as the alternatives on something, but no better. In Jay Barney's VRIO test, a resource that is valuable but not rare produces exactly this result: it is worth having, and it gives nobody a reason to choose you. The sustainable competitive advantage page sets out the full test.

Brand strategists, following Kevin Lane Keller, split this into points of parity (what you must match to be considered) and points of difference (what makes someone pick you). Examples of parity features:

• Online booking for a dental practice.
• Free returns for an online clothing shop.
• A mobile app for a bank.
• Next-day callouts for an emergency plumber.

None of these wins customers. Lacking any of them loses customers, because they are what people use to rule options out.

The pros. It removes easy reasons to reject you. It is cheaper than leading, because someone else has tested the idea. And it frees you to spend your effort on the one or two things where you can be genuinely better.

The cons. It gives no reason to choose you. It keeps you permanently one step behind, because you only copy what rivals have already launched. You copy their mistakes along with their good ideas. And when every option is equal, customers choose on price, which drags the whole market down.

The working rule: reach parity on what customers use to filter, and be different on what they use to decide.

Competitive parity pricing

Competitive parity pricing means setting your price at or near the going rate. Say three window cleaners in a town each charge $25 for a three-bedroom house. A fourth starts up and charges $25.

It works when the product is close to identical, prices are easy to compare and customers switch freely. Petrol stations are the classic case.

It fails when your costs are different from your rivals', because you have inherited their margin without their cost base. And it makes you a passenger in any price cut a rival decides to make. Competitor-based pricing covers the alternatives to matching: pricing deliberately below or above, and when each makes sense.

The competitive parity method of budgeting

Marketing textbooks, including Kotler and Armstrong's Principles of Marketing, list competitive parity as one of four common ways to set a promotion budget. The others are the affordable method, a percentage of sales, and the objective-and-task method (decide what you need to achieve, then cost it).

Under competitive parity you estimate what rivals spend, or the industry's typical ratio of advertising to sales, and match it.

The pros. It is quick. It stops you being drowned out by a rival who is spending heavily. And an industry norm is a useful sanity check on a budget pulled from thin air.

The cons. You cannot see your rivals' real spend. Public ad libraries show which ads are running, but for ordinary commercial ads they do not show what was spent. Their budget reflects their goals and their market share, not yours. And matching assumes they have got it right.

A better version compares shares rather than dollars. In a 1990 Harvard Business Review article, John Philip Jones set out what became known as the share of voice rule: brands whose share of advertising voice is above their market share tend to grow, and those below it tend to shrink. Later analysis by Les Binet and Peter Field supported it, and the gap is now called excess share of voice. If you want to grow, parity is not enough; if you are happy holding your position, it may be more than you need. The share of voice guide explains how to measure your share honestly.

How to estimate what you are matching

You will be working from signals, not invoices.

• Ad volume and longevity. How many ads each rival has running, and how long they have run. An ad that has run for months is probably earning its keep.
• Auction overlap. In Google Ads, auction insights shows how often each rival appears in the same auctions as you.
• Presence across channels. A rival active on Google, Meta and TikTok is spending differently from one on Google alone.

The guide to telling whether a competitor is outspending you works through these in detail. Figo reports the new ads each tracked competitor starts on Google, Meta and TikTok every week, which shows effort and direction but not spend; nobody outside the company can see that.

When parity is the right call

On table stakes. Match anything customers use to filter options, quickly and without fuss.

When you are new. Early on, looking credible matters more than looking different. Parity on the basics buys you the chance to be compared at all.

As a budget floor. Knowing roughly what rivals spend tells you the minimum needed to be noticed. Your own objectives should set the actual number.