The room is a business asset

Most founders will spend a fortnight choosing a CRM and no time at all choosing the people whose expectations set their baseline. It is an odd asymmetry, because the second decision has better evidence behind it.

What the network research actually says

In 2019, Yang, Chawla and Uzzi published a study in PNAS tracking 728 MBA graduates into leadership roles. The finding that travelled was that women benefit from a female-dominated inner circle. The finding that matters is more specific: it is the combination that predicts placement. Women who had both high network centrality — reach across the wider network — and an inner circle of two or three women they communicated with most had an expected placement level roughly two and a half times higher than women who had neither.

The distinction is worth holding onto, because it changes what you would do about it. Reach alone was not enough. A close circle alone was not enough. The women who did best had a wide network for information and a small, trusted, largely female circle for the private information — what a salary band really is, how a term sheet actually reads, which investor is difficult behind closed doors. Men in the same dataset did not need the second layer in the same way, which tells you something about who currently holds that information by default.

The capital efficiency argument

The second piece of evidence people reach for is BCG and MassChallenge's 2018 analysis of 350 startups. Companies founded or co-founded by women generated 78 cents of revenue for every dollar of funding raised. Male-founded companies generated 31 cents. The women-founded companies had raised, on average, less than half as much — $935,000 against $2.1 million — and still produced around 10% more cumulative revenue over five years.

That is not a story about women being better founders. It is a story about constraint. Companies that raise less are forced into revenue earlier, and revenue discipline shows up in the numbers. The uncomfortable version of the finding is that the funding gap produced the efficiency, which is not a trade anyone would choose.

But it does reframe what a peer room is for. If your capital is going to be scarcer, then the substitutes for capital — introductions, honest pricing information, a warm intro that shortens a sales cycle, someone who has already made the hire you are about to make badly — carry more weight, not less.

What this changes in practice

• Treat proximity as a budget line. If a room costs less per month than a single mediocre contractor day, the comparison is not “can I afford it” but “what does it replace”.
• Build both layers deliberately. A wide network you touch occasionally, and two or three people who see the real numbers. Most founders have one or the other.
• Optimise the inner circle for candour, not seniority. The useful question is not who is most impressive but who will tell you the price is too low.
• Measure it the way you would measure any channel. Introductions made, hires sourced, decisions changed. If nothing is moving after two quarters, it is the wrong room.

The part the research does not cover

None of the studies above measure the thing members actually describe when asked why they stay, which is that building alone is corrosive in a way that shows up slowly. That effect is real and badly measured, and we would rather say so than dress up a survey as proof of it.

The strongest argument for the room is not that it feels good. It is that the information you need most is the information nobody publishes.