7期

最新文章

• The Production and Consumption of Social Media AI翻译
  作者：Filippas, Apostolos; Horton, John J.; Lipnowski, Elliot; Parasurama, Prasanna
  作者单位：Fordham University; Massachusetts Institute of Technology (MIT); Yale University; Emory University
  摘要：We model social media as collections of users producing and consuming content. Users value consuming content, but due to scarce attention, they may not value all content from other users. Users also value receiving attention, creating the incentive to attract an audience by producing valuable content but also through attention bartering- users mutually becoming each other's audience. Attention bartering shapes substantially the patterns of production and consumption on social media, explains k...
• The ABCs of Who Benefits from Working with AI: Ability, Beliefs, and Calibration AI翻译
  作者：Caplin, Andrew; Deming, David; Li, Shangwen; Martin, Daniel; Marx, Philip; Weidmann, Ben; Ye, Kadachi Jiada
  作者单位：New York University; Harvard University; University of California System; University of California Santa Barbara; Louisiana State University System; Louisiana State University
  摘要：We use a controlled experiment to show that ability and belief calibration jointly determine the benefits of working with artificial intelligence (AI). AI improves performance more for people with low baseline ability. However, holding ability constant, AI assistance is more valuable for people who are calibrated, meaning they have accurate beliefs about their own ability. People who know they have low ability gain the most from working with AI. In a counterfactual analysis, we show that elimi...
• Consider or Choose? The Role and Power of Consideration Sets AI翻译
  作者：Akchen, Yi-Chun; Mitrofanov, Dmitry
  作者单位：University of London; University College London; Boston College
  摘要：Consideration sets play a crucial role in discrete choice modeling, where customers often form consideration sets in the first stage and then use a second-stage choice mechanism to select the product with the highest utility. Although many recent studies aim to improve choice models by incorporating more sophisticated second-stage choice mechanisms, this paper takes a step back and goes into the opposite extreme. We simplify the second-stage choice mechanism to its most basic form and focus on...
• Learning Personalized Treatment Strategies with Predictive and Prognostic Covariates in Adaptive Clinical Trials AI翻译
  作者：Alban, Andres; Chick, Stephen E.; Zoumpoulis, Spyros I.
  作者单位：Frankfurt School Finance & Management; INSEAD Business School; INSEAD Business School
  摘要：Biomedical research may uncover insights regarding the interaction of the treatments of a disease with patient covariates. We show how to use such insights to improve the efficiency of adaptive clinical trials for precision medicine by extending ideas from optimal Bayesian learning. We present a model for response-adaptive multi-arm clinical trials that leverages knowledge about the predictive-prognostic covariate structure to accelerate the learning of personalized treatment strategies that o...
• The Competitive Ratio of Threshold Policies for Online Unit-Density Knapsack Problems AI翻译
  作者：Ma, Will; Simchi-Levi, David; Zhao, Tinglong
  作者单位：Columbia University; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); Boston University
  摘要：We study a wholesale supply chain ordering problem. In this problem, the supplier has an initial stock and faces an unpredictable stream of incoming orders, making real-time decisions on whether to accept or reject each order. What makes this wholesale supply chain ordering problem special is its knapsack constraint; that is, we do not allow partially accepting an order or splitting an order. The objective is to maximize the utilized stock. We model this wholesale supply chain ordering problem...
• Mutual Fund Revenue Sharing in 401(k) Plans AI翻译
  作者：Veronika, K.; Sialm, Clemens; Stefanescu, Irina
  作者单位：Vanderbilt University; University of Texas System; University of Texas Austin; Federal Reserve System - USA; Federal Reserve System Board of Governors
  摘要：Recordkeepers in defined contribution (DC) pension plans are often paid indirectly in the form of revenue sharing from third-party funds on the menu. We show that these arrangements affect the investment menu of 401(k) plans. Revenue-sharing funds are more likely to be added to the menu and are less likely to be deleted. Overall, revenuesharing plans are more expensive, as higher expense ratios are not offset by lower direct fees or by superior performance. Rebates increase with the market pow...
• How Do Behavioral Approaches to Increase Savings Compare? Evidence from Multiple Interventions in the US Army AI翻译
  作者：Patterson, Richard W.; Skimmyhorn, William
  作者单位：Brigham Young University; National Bureau of Economic Research; IZA Institute Labor Economics; Leibniz Association; Ifo Institut
  摘要：How can we compare approaches to increase retirement savings? Messaging interventions, active choice frameworks, and automatic enrollment all increase retirement savings, but evidence supporting these approaches spans widely different institutional settings, populations, and time periods. In this study, we use experimental and quasiexperimental variation in these approaches within a constant setting using interventions in the U.S. military during 2016-2018. We find large differences in the eff...
• Scandal, Associative Stigma, and Sorting in Labor Markets: Archival and Experimental Evidence AI翻译
  作者：Kim, Jihyeon; Byun, Heejung; Raffiee, Joseph
  作者单位：Purdue University System; Purdue University; Purdue University System; Purdue University; University of Southern California
  摘要：Stigma stemming from managerial scandals often spreads beyond the implicated transgressor and contaminates other actors via stigma by association. We study how associative stigma resulting from scandals involving managerial misconduct affects subordinate worker careers. We extend prior work by distinguishing between managerial misconduct in the professional domain from managerial misconduct in the personal domain and theorize that this distinction will affect the severity of associative stigma...
• The Treasury Collateral Spread and Levered Safe-Asset Production AI翻译
  作者：Ross, Chase P.
  作者单位：Federal Reserve System - USA; Federal Reserve System Board of Governors
  摘要：Banks are vital suppliers of money-like safe assets, which they produce by issuing short-term liabilities and pledging collateral. But their ability to create safe assets varies over time as leverage constraints fluctuate. I write a simple model to describe private safeasset production when intermediaries face leverage constraints. I directly measure leverage constraints using confidential supervisory data on high-frequency changes in the largest banks' repurchase agreements (repos). The colla...
• Congestion Information and Efficiency: An Experiment AI翻译
  作者：Noussair, Charles N.; Qiao, Liang
  作者单位：University of Arizona; Nankai University; Nankai University
  摘要：Users are now typically able to access historical data in traffic, restaurant, and retailing contexts. This availability of information can be viewed as a means to reduce congestion. However, scientific support for this notion is weak. We investigate, using a laboratory experiment, whether an intermediate level of information provision might reduce congestion. We also study how the effect of making more information available changes over time. We show that providing all users with information ...