Truth Markets and Their Discontents
Markets might be able to price truth. Whether anyone wants to buy it is another question.
In a recent post, we looked at a small cluster of systems that try to use markets to correct misinformation.
Start with a simple analogy: bad information is a kind of pollution, a familiar problem in law & economics. In this case, the pollution manifests as a market failure in journalism and social media. A well-designed “truth-bounty” system could, in theory, reward those who earn public trust and capture attention by being right. That would increase the production and spread of high-quality news, while pushing misinformation to the margins.
Some of these proposals cut out authors and publishers altogether. Prediction markets and “retrodiction markets” would let anyone with a view—and some cash—bet on what’s true. Think the moon landing was faked? Buy “Yes” or “No.” Maybe the 1977 film “Capricorn One” (about a staged Mars landing) reflected conspiracy culture. Or maybe it was, depending on your priors, closer to documentary.
This is not entirely hypothetical. Financial markets already host a version of it. Certain firms do investigative work to uncover fraud and mismanagement in publicly traded companies, then take positions that pay off when the information becomes public. Short-selling ahead of the reveal can be quite profitable. That’s the “Hindenburg model,” named for Hindenburg Research, an early and prominent practitioner.
All of this sounds elegant in theory. In practice, these incentive-aligned truth machines face serious obstacles—especially when one tries to export them from finance into the messier world of politics and social discourse, where reliable information is in short supply and trust is even scarcer.