How to read a market size number without being fooled by it

MethodAugust 2026Insight 12

A first commercial skill: knowing when a number is telling you something and when it is telling you nothing.

In 2025, Grand View Research valued the global culinary tourism market at US$16.1 billion. In the same year, another research house valued it at US$1.07 trillion. Neither is lying. They are measuring different things: one counts the bookable food experience, the other counts all travel spending in which food played a meaningful part.

This is not a curiosity. It is the single most common way a new operator talks themselves into a bad decision. A large market number feels like evidence. It is not evidence of anything about your business, because you do not sell into a market, you sell into a catchment, at a price, at a capacity, on particular days.

Three questions strip most of the noise out. What exactly is being counted, and would my revenue be inside that definition? Who paid for the research, and what would they like the number to justify? And what is the growth rate being applied to, because a large compound rate on a narrow base and a small rate on a huge base describe very different worlds.

The habit this builds is worth more than any single figure. It is the same instinct that makes somebody ask what a supplier's discount is really costing, or which line in a management account has been quietly reclassified, or whether last month's improvement was performance or seasonality.

Interrogating a market size is the beginning of being trusted with a budget. It is a trainable habit, built by defending your own numbers under formal assessment.