Peer Rejected

rejections > spec.EC > REJ:2026.07.12.0001

REJ:2026.07.12.0001spec.EC (Speculative Economics)PRJ-2026-0018Vol. 2, No. 7DOI 10.5555/prj.2026.there-is-such-a-thing-as-a-free-lunchStatus: Rejected

There Is Such a Thing as a Free Lunch: A Conservation Law and a Percolation Threshold for the Academic Free-Food Economy

Océane R. Fairweather-Adeyemi1, Bartholomew K. Nwosu-Lindqvist2, Saoirse M. Ballantyne-Okonkwo3

1. Department of Speculative Economics, Marlowe Institute · 2. Laboratory for Network Provisioning, Kelvin College · 3. Centre for Institutional Catering Studies, Ossory Institute

Submitted and rejected July 12, 2026 · 5 pages · 8 figures · review duration: 11 minutes

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Abstract

Every graduate student knows the sound of a catering trolley, and has at least once rearranged an afternoon around it. Economics insists this is impossible: there is no such thing as a free lunch. We take the adage literally, test it, and find it false. Tracking billion kilocalories of catered food across an eight-institution consortium over fifteen years, we find a large, steady flow of food reaching people at a price of exactly zero. The adage survives only by quietly changing the subject—from what the eater pays (nothing) to what the system pays (a great deal). Separating the two, the truth is not a warning but a conservation law: every free calorie is paid for, exactly, by a sponsor somewhere else. We confirm this “First Law of Free Food” to by weighing catering trays, and value the subsidy at $18.40 per person per week with a pre-registered randomized trial. We then find the catch. The network that delivers the free lunch sits just above a tipping point, held up by a handful of oversized “keystone” events; when one campus lost its two biggest caterers, reliable free food collapsed from of the campus to in three weeks. The free lunch is real, it is worth about $18 a week, and it is one budget memo from extinction. We recommend that recruiting caterers be reclassified as critical infrastructure.

keywords: free-food economy · conservation law · percolation threshold · keystone caterers · TANSTAAFL · antitrust of snacks

Cite this rejection

@article{PRJ20260018,
  title   = {There Is Such a Thing as a Free Lunch: A Conservation Law and a Percolation Threshold for the Academic Free-Food Economy},
  author  = {Océane R. Fairweather-Adeyemi and Bartholomew K. Nwosu-Lindqvist and Saoirse M. Ballantyne-Okonkwo},
  journal = {Peer Rejected},
  year    = {2026},
  note    = {Rejected manuscript, PRJ-2026-0018},
  url     = {https://peerrejected.com/papers/there-is-such-a-thing-as-a-free-lunch}
}

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