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Creating Cohesive Communities: A Youth Camp Experiment in India

Arkadev Ghosh, Prerna Kundu, Matt Lowe, and Gareth Nellis

Non-family-based institutions for socializing young people may play a vital role in creating close-knit, inclusive communities. We study the potential for youth camps—integrating rituals, sports, and civics training—to strengthen intergroup cohesion. We randomly assigned Hindu and Muslim adolescent boys, from West Bengal, India, to two-week camps or to a pure control arm. To isolate mechanisms, we cross-randomized collective rituals (such as singing the national anthem, wearing uniforms, chanting support during matches, and synchronous dancing) and the intensity of intergroup contact.

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The Value of Privacy in Cartels: An Analysis of the Inner Workings of a Bidding Ring

Kei Kawai, Jun Nakabayashi, and Juan Ortner

We study how incentive constraints can be relaxed by randomization in a repeated-game setting. Our study is motivated by the workings of a detected bidding cartel that adopted a protocol of keeping the winning bid secret from the designated losers when defection was a concern. Keeping the winning bid secret makes accurately undercutting the winning bid more difficult and makes defection less attractive as potential defectors risk not winning the auction even if they deviate.

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How People Use Statistics

Pedro Bordalo, John Conlon, Nicola Gennaioli, Spencer Kwon, and Andrei Shleifer

For standard statistical problems, we provide new evidence documenting i) multi-modality and ii) instability in probability estimates, including from irrelevant changes in problem description. The evidence motivates a model in which, when solving a problem, people represent each hypothesis by attending to its salient features while neglecting other, potentially more relevant, ones. Only the statistics associated with salient features are used.

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The US, Economic News, and the Global Financial Cycle

Christoph E. Boehm and T. Niklas Kroner

We provide evidence for a causal link between the US economy and the global financial cycle. Using intraday data, we show that US macroeconomic news releases have large and significant effects on global risky asset prices. Stock price indexes of 27 countries, the VIX, and commodity prices all jump instantaneously upon news releases. The responses of stock indexes co-move across countries and are large—often comparable in size to the response of the S&P 500.

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How to sample and when to stop sampling: The generalized Wald problem and minimax policies

Karun Adusumilli

We study sequential experiments where sampling is costly and a decision-maker aims to determine the best treatment for full scale implementation by (1) adaptively allocating units between two possible treatments, and (2) stopping the experiment when the expected welfare (inclusive of sampling costs) from implementing the chosen treatment is maximized. Working under a continuous time limit, we characterize the optimal policies under the minimax regret criterion.

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Chris Cronin's recent Review of Economic Studies (@RevEconStudies) article, "What Good Are Treatment Effects Without Treatment? Mental Health and the Reluctance to Use Talk Therapy," with Forsstrom and Papageorge, is one of their "featured" articles.

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Recently accepted to #REStud, "Overconfidence and Prejudice," from Heidhues, Kőszegi and Strack:

https://www.restud.com/overconfidence-and-prejudice/

#econtwitter

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"Can communities sustain cooperation when players can add or erase signals from their records?
Sufficiently long-lived players can hardly sustain any cooperation, but players w/ intermediate lifespans can sustain some cooperation."

From @harry_toulouse:

https://www.restud.com/community-enforcement-with-endogenous-records/

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Recently accepted to #REStud, "Behavioral Causal Inference," from Ran Spiegler:

https://www.restud.com/behavioral-causal-inference/

#econtwitter

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