Journal of Empirical Legal Studies最新文献

{"title":"Killing as Capital: Perverse Effects of Truce Negotiations on Gang Violence in El Salvador","authors":"Cree Jones,&nbsp;Preston Lloyd","doi":"10.1111/jels.12407","DOIUrl":"https://doi.org/10.1111/jels.12407","url":null,"abstract":"<div>\u0000 \u0000 <p>In March 2012, the government of El Salvador brokered a truce between MS-13 and Barrio 18, the two largest and most notorious gangs in El Salvador. The truce was designed to decrease homicides in exchange for more lenient treatment of incarcerated gang leaders. Despite early, promising results, the truce was short-lived. From May 2013 to February 2015, the government walked back its concessions under the truce. Homicides increased steadily during the rescission period and exponentially in the wake of full revocation. Economic theory suggests negotiating with gangs may achieve short-term gains, but may also cause long-term losses, particularly when the government reneges: once negotiations are on the table, gangs may use killing to increase their political capital and induce the government to re-enter negotiations and make greater concessions. Using Salvadoran crime data, we deploy a difference-in-differences model to estimate the effect of the truce on homicides. We estimate the truce resulted in 1130 fewer homicides during its implementation and 551 fewer homicides during its piecemeal revocation. However, we also estimate 2250 more homicides occurred after full revocation, a perverse net effect of 569 more lives lost compared to what would have happened had the truce not been negotiated. These findings demonstrate negotiating with gangs may be an effective means to curb gang violence, but, if negotiations result in an unstable truce, they also introduce a perverse incentive structure that may result in long-term harms that exceed short-term gains.</p>\u0000 </div>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"22 1","pages":"90-113"},"PeriodicalIF":1.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143253364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patents Used in Patent Office Rejections as Indicators of Value","authors":"Christopher A. Cotropia,&nbsp;David L. Schwartz","doi":"10.1111/jels.12404","DOIUrl":"https://doi.org/10.1111/jels.12404","url":null,"abstract":"<p>This paper introduces a novel approach to measure a patent's economic value by examining whether the patent's disclosure leads to rejection of another pending US patent application. This approach considers the use of the patent by the US Patent and Trademark Office (USPTO) in office action rejections on the grounds of novelty or obviousness, as well as its citation as an X or Y reference in a European Patent Office (EPO) search report, which provides analogous information. Unlike conventional citation metrics widely employed by economists, the novel metric is arguably more closely tied to private value, as it is centered on the examiner's rejection of another patent application based on the patent in question. As this metric is not directly influenced by potential strategic behavior by patent lawyers or patent applicants, it is more directly tied to private value. This study evaluates how patents used in novelty and obviousness rejections, and comparable EPO information, correspond to common measures of private value—specifically patent renewal, the assertion of a patent in litigation, the number of independent patent claims, and classification in multiple technological subject matters. We examine rejection data over a defined time period for US patents issued from 1999 to 2007 and then link value data to these patents. A similar analysis is also conducted for EPO search reports. Our findings reveal that rejection uses, as well as X and Y EPO search citations, independently exhibit positive correlations with all of these value measurements. Moreover, when information from both the USPTO and EPO concerning a given patent is combined, further insights about that patent's value are obtained. We also find that rejection uses provide unique insights into additional measures of private value such as the patent being listed in the Orange Book or as a Standard Essential Patent. Accordingly, these rejection use metrics provide another independent tool for evaluating a patent's value.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"22 1","pages":"76-89"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jels.12404","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143252961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plea Bargaining Procedures Worldwide: Drivers of Introduction and Use","authors":"Gabriele Paolini,&nbsp;Elena Kantorowicz-Reznichenko,&nbsp;Stefan Voigt","doi":"10.1111/jels.12406","DOIUrl":"https://doi.org/10.1111/jels.12406","url":null,"abstract":"<p>Over the last three decades, plea bargaining has been adopted by many jurisdictions worldwide. However, a comprehensive account of both its adoption as well as its use is still missing. We survey 174 jurisdictions, finding that 101 allow plea-bargaining. For 52 jurisdictions, we also compute plea-bargaining rates, as the percentage of convictions imposed through plea bargaining over all criminal convictions. Relying on this novel dataset, we find that Muslim-majority populations and the French and Scandinavian legal origins are associated with lower probabilities of formalizing plea bargaining, while democracies are associated with higher probabilities. The Spanish and Socialist legal origins, a looser regulation of the procedure, and jury trials are associated with higher plea-bargaining rates, while higher income levels correlate with higher plea-bargaining rates only up to a certain point.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"22 1","pages":"27-75"},"PeriodicalIF":1.2,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jels.12406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143252917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Market Response to Court Rejection of California's Board Diversity Laws","authors":"Jonathan Klick","doi":"10.1111/jels.12405","DOIUrl":"https://doi.org/10.1111/jels.12405","url":null,"abstract":"<p>California mandated that firms headquartered in the state include women (SB 826) and underrepresented minorities (AB 979) on their corporate boards. These laws, passed in 2018 and 2020 respectively, were held to violate the state's constitution by judges on the Los Angeles County Superior Court in 2022. This paper examines the market reaction to these surprising court decisions, finding that California firms appreciated significantly on the days of the rulings, and there is evidence that firms that were not in compliance with the laws exhibited larger abnormal returns than firms that were in compliance.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"22 1","pages":"4-26"},"PeriodicalIF":1.2,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jels.12405","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143252916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Paying for performance? Attorneys' fees in fraud class actions","authors":"Stephen J. Choi,&nbsp;Jessica M. Erickson,&nbsp;A. C. Pritchard","doi":"10.1111/jels.12402","DOIUrl":"https://doi.org/10.1111/jels.12402","url":null,"abstract":"<p>This paper studies whether plaintiffs' lawyers matter in securities class actions. We use inverse propensity score weighting (IPW) to compare the results in cases led by top-tier firms against those brought by lower-tier firms. This technique addresses case selection effects by using all of the cases led by a top-tier firm and then weighting the cases led by lower-tier firms based on how similar these cases are to the cases led by top-tier firms. We do find that top-tier lawyers obtain better outcomes for shareholders in a subset of securities class actions, specifically the cases against the larger (although not the very largest) companies. Outside of these cases, we find that most of the difference in the results obtained by top- and lower-tier firms disappears when we balance observable characteristics using the IPW technique. Although the top-tier firms do not get better results in most cases, they do invest more hours and money into their cases.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"21 4","pages":"899-926"},"PeriodicalIF":1.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jels.12402","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Emotional bargaining after litigation: An experimental study of the Coase theorem","authors":"Yun-chien Chang,&nbsp;David Ta-wei Hung,&nbsp;Chang-Ching Lin,&nbsp;Joseph Tao-yi Wang","doi":"10.1111/jels.12397","DOIUrl":"https://doi.org/10.1111/jels.12397","url":null,"abstract":"<p>Entitlement assignment is unimportant if transaction cost is sufficiently low, as post-litigation bargaining can redress allocative inefficiency, or so goes the Coase theorem. Ward Farnsworth, based on interviews with lawyers, argues that animosity created during litigation, a key mechanism to (re)allocate entitlement, will hinder the conclusion of any deal following litigation. Using a laboratory experiment, we test whether animosity generated before negotiations reduce the rate at which deals are successfully concluded and find evidence for a lower deal rate under one of the treatment conditions (the raw difference being three percentage points). The small practical effect may be attributed to rationality carrying the day and/or the limited degree of animosity we can generated in the lab with human subjects. The Coase theorem holds, while Farsworth's observation should not be ignored.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"21 4","pages":"786-825"},"PeriodicalIF":1.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chain novel, or Markov chain? Estimating the authority of U.S. Supreme Court case law","authors":"Matthew Dahl","doi":"10.1111/jels.12401","DOIUrl":"https://doi.org/10.1111/jels.12401","url":null,"abstract":"<p>How does the authority of case law evolve over time? On the Dworkinian legal formalist view, cases increase in authority as they become more embedded in the “chain” of legal precedent, but on the Holmesian legal realist view, each case's authority is proportional to its ability to predict future legal outcomes. In this article, I show how modeling the citation network of U.S. Supreme Court case law not as a chain novel (à la Dworkin) but instead as a Markov chain (à la Holmes, or so I argue) unlocks an intuitive measure of case authority—called HolmesRank—that outperforms the existing approach in a variety of validation tasks. I then demonstrate how the authority scores produced using this Markov machinery empower the analysis of two important normative questions: (1) the ideological basis of lasting precedential authority and (2) the causal effect of the Supreme Court's citation choices on lower court compliance.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"21 4","pages":"861-898"},"PeriodicalIF":1.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Building a better lawyer: Experimental evidence that artificial intelligence can increase legal work efficiency","authors":"Aileen Nielsen,&nbsp;Stavroula Skylaki,&nbsp;Milda Norkute,&nbsp;Alexander Stremitzer","doi":"10.1111/jels.12396","DOIUrl":"https://doi.org/10.1111/jels.12396","url":null,"abstract":"<p>Rapidly improving artificial intelligence (AI) technologies have created opportunities for human–machine cooperation in legal practice. We provide evidence from an experiment with law students (<i>N</i> = 206) on the causal impact of machine assistance on the efficiency of legal task completion in a private law setting with natural language inputs and multidimensional AI outputs. We tested two forms of machine assistance: AI-generated summaries of legal complaints and AI-generated text highlighting within those complaints. AI-generated highlighting reduced task completion time by 30% without any reduction in measured quality indicators compared to no AI assistance. AI-generated summaries produced no change in performance metrics. AI summaries and AI highlighting together improved efficiency but not as much as AI highlighting alone. Our results show that AI support can dramatically increase the efficiency of legal task completion, but finding the optimal form of AI assistance is a fine-tuning exercise. Currently, AI-generated highlighting is not readily available from state-of-the-art, consumer-facing large language models, but our work suggests that this capability should be prioritized in the development of legal AI products.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"21 4","pages":"979-1022"},"PeriodicalIF":1.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automating Abercrombie: Machine-learning trademark distinctiveness","authors":"Shivam Adarsh,&nbsp;Elliott Ash,&nbsp;Stefan Bechtold,&nbsp;Barton Beebe,&nbsp;Jeanne Fromer","doi":"10.1111/jels.12398","DOIUrl":"https://doi.org/10.1111/jels.12398","url":null,"abstract":"<p>Trademark law protects marks to enable firms to signal their products' qualities to consumers. To qualify for protection, a mark must be able to identify and distinguish goods. US courts typically locate a mark on a “spectrum of distinctiveness”—known as the <i>Abercrombie</i> spectrum—that categorizes marks as fanciful, arbitrary, or suggestive, and thus as “inherently distinctive,” or as descriptive or generic, and thus as not inherently distinctive. This article explores whether locating trademarks on the <i>Abercrombie</i> spectrum can be automated using current natural-language processing techniques. Using about 1.5 million US trademark registrations between 2012 and 2019 as well as 2.2 million related USPTO office actions, the article presents a machine-learning model that learns semantic features of trademark applications and predicts whether a mark is inherently distinctive. Our model can predict trademark actions with 86% accuracy overall, and it can identify subsets of trademark applications where it is highly certain in its predictions of distinctiveness. Using an eXplainable AI (XAI) algorithm, we further analyze which features in trademark applications drive our model's predictions. We then explore the practical and normative implications of our approach. On a practical level, we outline a decision-support system that could, as a “robot trademark clerk,” assist trademark experts in their determination of a trademark's distinctiveness. Such a system could also help trademark experts understand which features of a trademark application contribute the most toward a trademark's distinctiveness. On a theoretical level, we discuss the normative limits of the <i>Abercrombie</i> spectrum and propose to move beyond <i>Abercrombie</i> for trademarks whose distinctiveness is uncertain. We discuss how machine-learning projects in the law not only inform us about the aspects of the legal system that may be automated in the future, but also force us to tackle normative tradeoffs that may be invisible otherwise.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"21 4","pages":"826-860"},"PeriodicalIF":1.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jels.12398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Market versus policy responses to novel occupational risks","authors":"Robert J. Cramer,&nbsp;Elissa Philip Gentry,&nbsp;W. Kip Viscusi","doi":"10.1111/jels.12394","DOIUrl":"https://doi.org/10.1111/jels.12394","url":null,"abstract":"<p>The unprecedented occupational risks posed by the COVID-19 pandemic prompted employers to boost wages and federal authorities to propose hazard pay policies. This article estimates a market-based compensating differential for workers facing elevated risks through contact with the public using CPS employment data for 2019–2020 and occupational characteristic data from the US Department of Labor's Occupational Information Network. The estimated premium for exposure was roughly $820 overall and $1000 for essential workers. These premiums fall short of those proposed—but not enacted—by the federal government and are more commensurate with estimates of the value of a statistical life than were the federal proposals.</p>","PeriodicalId":47187,"journal":{"name":"Journal of Empirical Legal Studies","volume":"21 4","pages":"716-756"},"PeriodicalIF":1.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jels.12394","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}