The Institute for the Study of Transactions

transactology.org


An independent research organization examining the structure, ethics, and consequences of transactions across human, ecological, and computational systems.

Established 2014 · Copenhagen · Tallinn · New Haven

About the Institute

A reading room for the exchange.


transactology is the disciplined study of transactions: the moments when value, attention, obligation, or matter passes from one party to another. Our work spans economic theory, environmental accounting, contract design, and the social anthropology of agreement.

We publish whitepapers, host quarterly seminars, and convene a small cohort of resident fellows. Our research is freely available and is funded by an endowment of long-tenure institutional partners. We do not accept project-specific commercial sponsorship.

Our method is slow. We favor long arguments, careful citation, and the patient editing of our own conclusions. The institute exists to give the question of transaction the time the question requires.

Research

Lines of inquiry, in current circulation.


Six standing research lines organize the institute's work. Each is led by a senior fellow and updated annually with a synoptic paper. Click a line to read the long abstract.

  1. This line studies the threshold at which an exchange is felt to be complete by both parties. Working from comparative ethnography (Estonian land transfers, Senegalese livestock auctions, Manhattan apartment closings), we describe the rituals, signatures, and silences that mark the transition from offer to settled fact. The current monograph, The Closing (2025), compiles fourteen case studies and proposes a typology of closure: notarial, performative, gestural, and digital.

  2. The Long Ledger Project develops methods for representing the externalities of an exchange across decades and across non-signatory parties (forests, watersheds, descendants). In partnership with the Aarhus School of Environmental Accounting, we maintain an open dataset of 312 transactions reconstructed across full life-cycles. Our 2026 working paper proposes a "long ledger" template adoptable by municipal procurement offices.

  3. This line examines the migration of settlement from human ritual into machine procedure. We compare the medieval bill of exchange, the SWIFT message, and the EVM transaction as artifacts of the same problem: how to make a promise reliably real. The fellowship has produced a glossary of settlement terms used uniformly across our publications, and contributes to ongoing standards work at ISO TC 68.

  4. Not all transactions are visible to markets. The Tacit Transaction line studies the exchanges that organize family, neighborhood, scholarship, and online community. The 2024 paper Reciprocity Without Receipt argues that the unpriced transaction is not the absence of accounting but a different accounting, one whose ledger lives in memory and reputation. Current work is on attribution debt in scientific authorship.

  5. The pursuit of frictionless commerce is itself a moral position. This line documents cases in which friction (a waiting period, a counter-signature, a face-to-face meeting) protects a less-powerful party, and cases in which friction is a tax on the poor. Working with the Tallinn Bureau of Civic Service Design, we are publishing a 2026 monograph titled The Considered Pause.

  6. The Lexicon is a long-horizon project: a definitive multi-volume dictionary of the technical vocabulary of exchange, drawn from law, economics, anthropology, theology, and computer science. Volume I (A–F, 482 entries) was published in 2023. Volume II is in editing. The institute's resident fellows convene biannually to ratify new entries by a two-thirds vote.

Participation

Correspond with the institute.


We welcome correspondence from researchers, practitioners, and students of transaction. Use the form below to write to the secretary's office. We respond within ten working days; longer for letters that require deliberation.


Office of the Secretary

secretary@transactology.org

+45 33 14 22 81

Postal correspondence

Frederiksgade 21, 3rd

DK-1265 København K