Theoretical Economics @econtheory.bsky.social · 11hHow does a profit-maximizing certifier design and price tests? Two information channels shape the optimal menu: what the test results reveal and what the buyer's choice of test reveals www.econometricsociety.org/publications... 010
Theoretical Economics @econtheory.bsky.social · 11hHow do contracts shape assortative matching when workers’ histories are private? This paper shows that screening contracts deliver geometric convergence, while adverse selection without them slows adjustment or stops it altogether www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 10/09/2026How can directions of preference improvement be characterized without addition, subtraction, multiplication, division, limits, or epsilons and deltas? No algebra, no topology, just orders. This paper proposes such a framework www.econometricsociety.org/publications... 010
Theoretical Economics @econtheory.bsky.social · 08/09/2026In our dynamic model, users decide whether to share randomly drawn stories, and spotting false ones takes costly attention. Endogenous attention means early draws affect the outcome; less credible falsehoods can spread more. @tuvaldan @DrewFudenberg www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 04/09/2026We show, under certain conditions, that if the players start reasoning about more information sets in a dynamic game, then the associated rationalizability procedure will lead to a smaller, or equal, set of outcomes www.econometricsociety.org/publications... 010
Theoretical Economics @econtheory.bsky.social · 04/09/2026Is efficiency preserved for stable matchings under two-sided incomplete information? The paper reveals a fundamental asymmetry: it holds for submodular but not supermodular premuneration values, hinging on worst-case misassignment deduction www.econometricsociety.org/publications... 010
Theoretical Economics @econtheory.bsky.social · 18/08/2026We study optimal mechanisms for allocation problems without transfers where agents have correlated types. Using graph-theoretic methods, we show that exactly optimal mechanisms are impractically complex. We propose approximately optimal alternatives www.econometricsociety.org/publications... 011
Theoretical Economics @econtheory.bsky.social · 10/08/2026We provide a foundation for stochastic choice as the long-run frequency of repeated choices over time www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 04/08/2026When is ruling out beneficial two-agent swaps enough for full efficiency? The paper shows that for monotonic object-allocation rules, pairwise efficiency and non-wastefulness together imply Pareto efficiency www.econometricsociety.org/publications... 051
Theoretical Economics @econtheory.bsky.social · 04/08/2026We prove that any stable matching mechanism suffers from systematic inefficiency of striking magnitude: in large random markets, any stable allocation is Pareto-inefficient with high probability, and almost all students can simultaneously improve www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 15/07/2026An agent privately observes a Markov chain online and reports it to a designer. We show that, in general, keeping track of the empirical frequency of transition counts in the agent’s reports is insufficient, despite the true state being Markovian www.econometricsociety.org/publications... 010
Theoretical Economics @econtheory.bsky.social · 14/07/2026Theoretical Economics Volume 21, Issue 3 (July 2026) is now online www.econometricsociety.org/publications... 020
Theoretical Economics @econtheory.bsky.social · 09/07/2026Does expanding the range of available contractual terms always improve welfare? This paper shows that adding contractual terms can harm agents and identifies conditions under which such welfare losses are prevented. www.econometricsociety.org/publications... 021
Theoretical Economics @econtheory.bsky.social · 06/07/2026We introduce semi-stability, a novel notion that guarantees existence and restores stability in roommate problems through minimal policy or group interventions www.econometricsociety.org/publications... 020
Theoretical Economics @econtheory.bsky.social · 01/07/2026TE is fortunate to have thoughtful & committed AEs who are essential for the smooth running of the journal. We are pleased to announce Arjada Bardhi (NYU), Giacomo Lanzani (UC, Berkeley), Lucas Maestri (FGV), Ludovic Renou (QMUL, ASU), & Venky Venkateswaran (NYU) joined July 1st. 010
Theoretical Economics @econtheory.bsky.social · 30/06/2026How should information be sold? We show a monopolist info provider will use threshold signals/menus to shape sellers’ prices, often raising welfare relative to full information. Welfare rises if production cost is high, but falls if low www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 26/06/2026New in Theoretical Economics: “Combinator Dynamics: Multi-Dimensional Evolutionary Learning” by Srinivas Arigapudi, Omer Edhan, Yuval Heller & Ziv Hellman. A model of how agents imitate and recombine traits across decision dimensions. @heller_yuval www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 12/06/2026We study multi-group teams tackling binary projects. Equilibrium features gradualism, inaction & contribution cycles. Delay grows super-proportionally with project size. Two-group teams outperform homogeneous ones, even with near equal preferences www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 12/06/2026A privately informed principal chooses a communication device to influence players without ex-ante commitment. We characterize the resulting equilibria and relate them to standard communication equilibria www.econometricsociety.org/publications... 010
Theoretical Economics @econtheory.bsky.social · 21/05/2026Theoretical Economics Volume 21, Issue 2 (May 2026) is now online econtheory.org 000
Theoretical Economics @econtheory.bsky.social · 13/05/2026How much experimentation occurs in games where players observe each other's actions but not outcomes? This paper shows that the equilibrium amount of experimentation exceeds that under public observation, and quantifies this excess www.econometricsociety.org/publications... 000
Theoretical Economics @econtheory.bsky.social · 06/05/2026How should information be disclosed to strategic players? The paper develops a tractable framework and shows that optimal policies are often simple: targeted or linear disclosure. Applications include VC, belief polarization, and price competition www.econometricsociety.org/publications... 030
Theoretical Economics @econtheory.bsky.social · 29/04/2026Why do people think streaks are unlikely? This paper develops a formal account of a belief in mean reversion and shows how it can generate some of the core implications of the Law of Small Numbers www.econometricsociety.org/publications... 011
Theoretical Economics @econtheory.bsky.social · 27/04/2026In auctions for income-generating assets such as intellectual property licenses, the revenue-maximizing mechanism combines upfront payments and royalties: higher bidders pay more upfront and face lower royalty caps www.econometricsociety.org/publications... 011
Theoretical Economics @econtheory.bsky.social · 21/04/2026How does the amount of information required to monitor many players scale with their number? In repeated games, we show cooperation turns on the ratio of the discount rate and the per-capita channel capacity of the stage game monitoring structure www.econometricsociety.org/publications... 031
Theoretical Economics @econtheory.bsky.social · 18/04/2026This paper develops a general theory to recover the inverse welfare function that rationalizes a given tax schedule as optimal in complex environments. This inverse welfare function can be used to find Pareto and/or welfare improving reforms www.econometricsociety.org/publications... 010
Theoretical Economics @econtheory.bsky.social · 14/04/2026Polarization happens www.econometricsociety.org/publications... 023
Theoretical Economics @econtheory.bsky.social · 26/03/2026In the context of school choice, it is possible to compare stable mechanisms in terms of coalitional manipulability econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 26/03/2026How do platforms keep you scrolling? This paper shows the optimal strategy is "dilution"—rare but highly informative signals that drive users to extreme beliefs, extract all surplus, and remain credible even without platform's long-term commitment econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 05/03/2026Can consumer reviews form barriers to entry? If so, what can review platforms do about it? The answer: stop well-established firms from acquiring new reviews econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 27/02/2026A news platform shapes consumers' beliefs with information and narratives (models of what determines outcomes). The strategy that maximizes their anticipatory utility combines biased information and false narratives, and induces belief polarization econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 27/02/2026How does ambiguous product information affect trade between a price-setting seller and an ambiguity-sensitive buyer? We find that the right kind of ambiguous information makes the buyer or seller better off than any possible unambiguous information econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 13/02/2026This paper characterizes when and how robust decisions can be objectively improved with data econtheory.org/ojs/index.ph... 000
Theoretical Economics @econtheory.bsky.social · 03/02/2026Does freer trade necessarily raise welfare for all? No. This paper shows that a country prefers autarky to frictionless trade with a sufficiently less productive partner. Losses arise due to displaced domestic varieties. @JustinTumlinson econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 30/01/2026Theoretical Economics Volume 21, Issue 1 (January 2026) is now online econtheory.org 021
Theoretical Economics @econtheory.bsky.social · 23/01/2026Our new paper “Efficient investment, search, and sorting in matching markets” is at @TE. We show a new second welfare theorem for search markets, e.g. labour, marriage, or products: the market can overcome the hold-up and matching problems econtheory.org/ojs/index.ph... 051
Theoretical Economics @econtheory.bsky.social · 14/01/2026The paper focuses on a single intrinsic difference between physical and digital currency: traceability. This technological advance in record-keeping can be used by the monetary authority to achieve efficiency in a wide range of circumstances econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 14/01/2026The paper studies reputational bargaining in which the stubborn type can choose their initial demand. Types can pool or separate in equilibrium. When the probability of the stubborn type is small, any feasible payoff can be achieved in equilibrium econtheory.org/ojs/index.ph... 000
Theoretical Economics @econtheory.bsky.social · 16/12/2025We revisit revealed preference analysis when choices are observed imprecisely. Building on Afriat and Fishburn, we study rationalization when the analyst only knows that the agent chose *some* option within a set econtheory.org/ojs/index.ph... 000
Theoretical Economics @econtheory.bsky.social · 16/12/2025if we randomly sample economies from a distribution, will the stable assignments of these economies converge to a stable assignment of the limit economy as we increase the sample? I provide a condition on the economy that guarantees this convergence econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 08/12/2025A dynamic model of durable-good monopoly where the seller minimises lifetime regret against the worst-case type of buyer econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 19/11/2025Theoretical Economics Volume 20, Issue 4 (November 2025) is now online econtheory.org 010
Theoretical Economics @econtheory.bsky.social · 11/11/2025We study stochastic choice using marginal distributions of menus and choices. RUM has no testable implications, but any domain restriction generates data restrictions. Luce also rationalizes any dataset, but unlike RUM its parameters are identified econtheory.org/ojs/index.ph... 000
Theoretical Economics @econtheory.bsky.social · 08/11/2025This paper shows that the limit equilibrium payoff set for stochastic games with imperfect public monitoring expands when the monitoring structure improves in the information order based on a weaker notion of garbling called weighted garbling econtheory.org/ojs/index.ph... 010
Theoretical Economics @econtheory.bsky.social · 04/11/2025How does verifiable information flow through networks? Full disclosure arises only when all players are biased in the same direction relative to the decision maker. Hence, the optimal network is a line where players are ordered by their preferences econtheory.org/ojs/index.ph... 020
Theoretical Economics @econtheory.bsky.social · 24/10/2025Perfectly patient and monotone preferences on infinite utility streams can allow for strict comparisons of almost all utility streams econtheory.org/ojs/index.ph... 040
Theoretical Economics @econtheory.bsky.social · 21/10/2025Robust contracts for agents with unknown beliefs econtheory.org/ojs/index.ph... 011
Theoretical Economics @econtheory.bsky.social · 16/09/2025Standard dynamic preference models cannot simultaneously satisfy the properties of time consistency, the separation of time and risk preferences and the ability to accommodate an indifference to the timing of when risk is resolved econtheory.org/ojs/index.ph... 000
Theoretical Economics @econtheory.bsky.social · 16/09/2025What is the efficient provision of public information in frictional search markets? I characterize the constrained-efficient market segmentation when agents use it to direct their search econtheory.org/ojs/index.ph... 030
Theoretical Economics @econtheory.bsky.social · 12/09/2025The Executive Committee of the Econometric Society has approved an increase in the publication fees for papers in its two Open Access journals, Quantitative Economics and Theoretical Economics. Read more www.econometricsociety.org/society/news...econometricsociety.orgChanges in Publication Fees for Quantitative Economics and Theoretical Economics - The Econometric SocietyThe Executive Committee of the Econometric Society has approved an increase in the publication fees for papers in its two Open Access... 000