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      • June 27, 2022
      • Article

      Amplification in the Evaluation of Multiple Emotional Expressions over Time

      By: Amit Goldenberg, Jonas Schöne, Zi Huang, Timothy D. Sweeny, Desmond C. Ong, Timothy Brady, Maria M. Robinson, David Levari and Jamil Zaki
      Social interactions are dynamic and unfold over time. To make sense of social interactions, people must aggregate sequential information into summary, global evaluations. But how do people do this? Here, to address this question, we conducted nine studies (N = 1,583)...  View Details
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      Goldenberg, Amit, Jonas Schöne, Zi Huang, Timothy D. Sweeny, Desmond C. Ong, Timothy Brady, Maria M. Robinson, David Levari, and Jamil Zaki. "Amplification in the Evaluation of Multiple Emotional Expressions over Time." Nature Human Behaviour (June 27, 2022).
      • June 2022
      • Article

      The Use and Misuse of Patent Data: Issues for Finance and Beyond

      By: Josh Lerner and Amit Seru
      Patents and citations are powerful tools for understanding innovation increasingly used in financial economics (and management research more broadly). Biases may result, however, from the interactions between the truncation of patents and citations and the changing...  View Details
      Keywords: Patents; Analytics and Data Science; Corporate Finance; Research
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      Lerner, Josh, and Amit Seru. "The Use and Misuse of Patent Data: Issues for Finance and Beyond." Review of Financial Studies 35, no. 6 (June 2022): 2667–2704.
      • March 2022 (Revised May 2022)
      • Case

      Reclaiming the Land of Purple: Purpl’s Mission to Unlock Finance in Lebanon

      By: Lauren Cohen and Grace Headinger
      Karl Naim, Co-Founder and CEO of Purpl, embarked on a venture to lower remittance costs for his native Lebanon. Since October 2019, the Lebanese economy had entered a free fall as its banking sector collapsed and large swathes of its population were plunged into...  View Details
      Keywords: Business Startup; Fintech; Inflation; Deflation; Cross-border Frictions; Remittances; Business Startups; Diasporas; Financial Crisis; Money; Entrepreneurship; Cross-Cultural and Cross-Border Issues; Poverty; Financial Institutions; Banking Industry; Financial Services Industry; Technology Industry; Lebanon
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      Cohen, Lauren, and Grace Headinger. "Reclaiming the Land of Purple: Purpl’s Mission to Unlock Finance in Lebanon." Harvard Business School Case 222-078, March 2022. (Revised May 2022.)
      • 2022
      • Working Paper

      E-commerce During COVID: Stylized Facts from 47 Economies

      By: Joel Alcedo, Alberto Cavallo, Bricklin Dwyer, Prachi Mishra and Antonio Spilimbergo
      We study e-commerce across 47 economies and 26 industries during the COVID-19 pandemic using aggregated and anonymized transaction-level data from Mastercard, scaled to represent total consumer spending. The share of online transactions in total consumption increased...  View Details
      Keywords: COVID-19 Pandemic; Health Pandemics; Spending; Internet and the Web; Global Range; Analysis; E-commerce
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      Alcedo, Joel, Alberto Cavallo, Bricklin Dwyer, Prachi Mishra, and Antonio Spilimbergo. "E-commerce During COVID: Stylized Facts from 47 Economies." NBER Working Paper Series, No. 29729, February 2022.
      • February 2022
      • Article

      Taxation and Innovation in the 20th Century

      By: Ufuk Akcigit, John Grigsby, Tom Nicholas and Stefanie Stantcheva
      This paper studies the effect of corporate and personal taxes on innovation in the United States over the twentieth century. We build a panel of the universe of inventors who patent since 1920, and a historical state-level corporate tax database with corporate tax...  View Details
      Keywords: Innovation; Income Taxes; Corporate Taxation; Firms; Inventors; State Taxation; Business Taxation; R&D Tax Credits; Taxation; Innovation and Invention; History; United States
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      Akcigit, Ufuk, John Grigsby, Tom Nicholas, and Stefanie Stantcheva. "Taxation and Innovation in the 20th Century." Quarterly Journal of Economics 137, no. 1 (February 2022): 329–385.
      • 2022
      • Book

      The Role of Innovation and Entrepreneurship in Economic Growth

      By: Michael J. Andrews, Aaron Chatterji, Josh Lerner and Scott Stern
      We live in an era in which innovation and entrepreneurship seem ubiquitous, particularly in regions like Silicon Valley, Boston, and the Research Triangle Park. But many metrics of economic growth, such as productivity growth and business dynamism, have been at best...  View Details
      Keywords: Productivity Growth; Production Technologies; Innovation and Invention; Entrepreneurship; Economic Growth; Competition; Organizational Design; Economic Slowdown and Stagnation
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      Andrews, Michael J., Aaron Chatterji, Josh Lerner, and Scott Stern, eds. The Role of Innovation and Entrepreneurship in Economic Growth. Chicago: University of Chicago Press, 2022.
      • January 2022
      • Technical Note

      BGIE Macro Data Repository

      By: Alberto Cavallo
      This technical note describes an up-to-date data repository containing balance of payment, exchange rate, and aggregate macroeconomic data in a standard format used by case studies written by members of the Business, Government & the International Economy (BGIE) group...  View Details
      Keywords: Macroeconomics
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      Cavallo, Alberto. "BGIE Macro Data Repository." Harvard Business School Technical Note 722-037, January 2022.
      • December 1, 2021
      • Article

      Do You Know How Your Teams Get Work Done?

      By: Rohan Narayana Murty, Rajath B. Das, Scott Duke Kominers, Arjun Narayan, Suraj Srinivasan, Tarun Khanna and Kartik Hosanagar
      In a research study at four Fortune 500 companies, when managers were asked about their teams’ work, on average they either did not know or could not remember 60% of the work their teams do. This is a major problem because it can lead to unrealistic digital...  View Details
      Keywords: Leading Teams; Work Recall Gap; Machine Learning; Algorithms; Groups and Teams; Management; Technological Innovation
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      Murty, Rohan Narayana, Rajath B. Das, Scott Duke Kominers, Arjun Narayan, Suraj Srinivasan, Tarun Khanna, and Kartik Hosanagar. "Do You Know How Your Teams Get Work Done?" Harvard Business Review Digital Articles (December 1, 2021).
      • 2021
      • Working Paper

      Omnia Juncta in Uno: Foreign Powers and Trademark Protection in Shanghai's Concession Era

      By: Laura Alfaro, Cathy Bao, Maggie X. Chen, Junjie Hong and Claudia Steinwender
      We investigate how firms adapt to trademark protection, an extensively used but underexamined form of IP protection, by exploring a historical precedent: China’s trademark law of 1923—an unanticipated and disapproved response to end foreign privileges in China. By...  View Details
      Keywords: Trademark; Firm Dynamics; Intermediaries; Intellectual Property Institutions; Trademarks; Intellectual Property; Laws and Statutes; Outcome or Result; Organizational Change and Adaptation; China
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      Alfaro, Laura, Cathy Bao, Maggie X. Chen, Junjie Hong, and Claudia Steinwender. "Omnia Juncta in Uno: Foreign Powers and Trademark Protection in Shanghai's Concession Era." Harvard Business School Working Paper, No. 22-030, November 2021. (Revised January 2022.)
      • November 2021
      • Article

      Determining Variable Costs in the Acute Urolithiasis Cycle of Care Through Time-driven Activity-based Costing

      By: Tyler R. McClintock, David F. Friedlander, Aiden Y. Feng, Mahek A. Shah, Daniel J. Pallin, Steven L. Chang, Angela M. Bader, Thomas W. Feeley, Robert S. Kaplan and George E. Haleblian
      Objective. To characterize full cycle of care costs for managing an acute ureteral stone using time-driven activity-based costing.
      Methods. We defined all phases of care for patients presenting with an acute ureteral stone and built an...  View Details
      Keywords: Time-Driven Activity-Based Costing; Health Care and Treatment; Cost; Activity Based Costing and Management
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      McClintock, Tyler R., David F. Friedlander, Aiden Y. Feng, Mahek A. Shah, Daniel J. Pallin, Steven L. Chang, Angela M. Bader, Thomas W. Feeley, Robert S. Kaplan, and George E. Haleblian. "Determining Variable Costs in the Acute Urolithiasis Cycle of Care Through Time-driven Activity-based Costing." Urology 157 (November 2021): 107–113.
      • 2021
      • Working Paper

      Friends and Family Money: P2P Transfers and Financially Fragile Consumers

      By: Tetyana Balyuk and Emily Williams
      We assess the impact that real time money transfer technology has on consumer outcomes, particularly during periods of financial fragility. We do this by developing a new data set that documents use of Zelle—the most widely used P2P money transfer technology in the...  View Details
      Keywords: P2P Money Transfers; Real Time Payments; Fintech; Finance; Information Technology; Personal Finance; Financial Condition
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      Balyuk, Tetyana, and Emily Williams. "Friends and Family Money: P2P Transfers and Financially Fragile Consumers." Working Paper, November 2021.
      • October 2021
      • Article

      Judgment Aggregation in Creative Production: Evidence from the Movie Industry

      By: Hong Luo, Jeffrey T. Macher and Michael Wahlen
      We study a novel, low-cost approach to aggregating judgment from a large number of industry experts on ideas that they encounter in their normal course of business. Our context is the movie industry, in which customer appeal is difficult to predict and investment costs...  View Details
      Keywords: Judgment Aggregation; Quality Uncertainty; Creative Industry; Project Evaluation And Selection; Creativity; Film Entertainment; Judgments; Motion Pictures and Video Industry
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      Luo, Hong, Jeffrey T. Macher, and Michael Wahlen. "Judgment Aggregation in Creative Production: Evidence from the Movie Industry." Management Science 67, no. 10 (October 2021): 6358–6377.
      • 2021
      • Working Paper

      How Important is Editorial Gatekeeping? Evidence from Top Biomedical Journals

      By: Joshua L. Krieger, Kyle R. Myers and Ariel D. Stern
      We examine editors' influence on the scientific content of academic journals by unpacking the role of three major forces: journals' missions, aggregate supply of and demand for specific topics, and scientific homophily via editorial gatekeeping. In a sample of top...  View Details
      Keywords: Jobs and Positions; Operations; Information Publishing; Analysis
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      Krieger, Joshua L., Kyle R. Myers, and Ariel D. Stern. "How Important is Editorial Gatekeeping? Evidence from Top Biomedical Journals." Harvard Business School Working Paper, No. 22-011, September 2021.
      • August 2021
      • Article

      Crowdsourcing Memories: Mixed Methods Research by Cultural Insiders-Epistemological Outsiders

      By: Tarun Khanna, Karim R. Lakhani, Shubhangi Bhadada, Nabil Khan, Saba Kohli Davé, Rasim Alam and Meena Hewett
      This paper examines the role that the two lead authors’ personal connections played in the research methodology and data collection for the Partition Stories project—a mixed-methods approach to revisiting the much-studied historical trauma of the Partition of British...  View Details
      Keywords: Crowdsourcing; Mixed Methods Research; Oral History; History; Research
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      Khanna, Tarun, Karim R. Lakhani, Shubhangi Bhadada, Nabil Khan, Saba Kohli Davé, Rasim Alam, and Meena Hewett. "Crowdsourcing Memories: Mixed Methods Research by Cultural Insiders-Epistemological Outsiders." Academy of Management Perspectives 35, no. 3 (August 2021): 384–399.
      • August 2021
      • Article

      Crowdsourcing Memories: Mixed Methods Research by Cultural Insiders-Epistemological Outsiders

      By: Tarun Khanna, Karim R. Lakhani, Shubhangi Bhadada, Nabil Khan, Saba Kohli Davé, Rasim Alam and Meena Hewett
      This paper examines the role that the two lead authors’ personal connections played in the research methodology and data collection for the Partition Stories Project—a mixed-methods approach to revisiting the much-studied historical trauma of the Partition of British...  View Details
      Keywords: Mixed Methods; Insider-outsiders; Myth Of Informed Objectivity; Hybrid Research; Oral Narratives; Research; Analysis; India
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      Khanna, Tarun, Karim R. Lakhani, Shubhangi Bhadada, Nabil Khan, Saba Kohli Davé, Rasim Alam, and Meena Hewett. "Crowdsourcing Memories: Mixed Methods Research by Cultural Insiders-Epistemological Outsiders." Academy of Management Perspectives 35, no. 3 (August 2021): 384–399.
      • Article

      What Is Your Status Portfolio? Higher Status Variance across Groups Increases Interpersonal Helping but Decreases Intrapersonal Well-being

      By: Catarina R. Fernandes, Siyu Yu, Taeya M. Howell, Alison Wood Brooks, Gavin J. Kilduff and Nathan C. Pettit
      Individuals belong to multiple groups across various domains of life, which in aggregate constitute a portfolio of potentially distinct levels of experienced status. We propose a two-factor model for assessing the effects of an individual’s status portfolio, based on...  View Details
      Keywords: Status; Social Hierarchies; Helping; Perspective Taking; Anxiety; Status and Position; Groups and Teams; Perspective; Well-being
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      Fernandes, Catarina R., Siyu Yu, Taeya M. Howell, Alison Wood Brooks, Gavin J. Kilduff, and Nathan C. Pettit. "What Is Your Status Portfolio? Higher Status Variance across Groups Increases Interpersonal Helping but Decreases Intrapersonal Well-being." Organizational Behavior and Human Decision Processes 165 (July 2021): 56–75.
      • May 2021
      • Article

      Ideology and Composition Among an Online Crowd: Evidence From Wikipedians

      By: Shane Greenstein, Grace Gu and Feng Zhu
      Online communities bring together participants from diverse backgrounds and often face challenges in aggregating their opinions. We infer lessons from the experience of individual contributors to Wikipedia articles about U.S. politics. We identify two factors that...  View Details
      Keywords: User Segregation; Online Community; Contested Knowledge; Collective Intelligence; Ideology; Bias; Wikipedia; Knowledge Sharing; Perspective; Government and Politics
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      Greenstein, Shane, Grace Gu, and Feng Zhu. "Ideology and Composition Among an Online Crowd: Evidence From Wikipedians." Management Science 67, no. 5 (May 2021): 3067–3086.
      • April 2021 (Revised May 2021)
      • Case

      Kitopi: The Brave New World of Cloud Kitchens

      By: Antonio Moreno and Gamze Yucaoglu
      The case opens in February 2021 as Mohamad Ballout, co-founder and CEO of Kitopi, a Dubai-based managed cloud kitchen platform, is looking over the company’s 2020 results. Propelled by the COVID-19 pandemic, delivery orders had been on the rise globally and dine-in...  View Details
      Keywords: Cloud Kitchens; Food; Operations; Growth and Development Strategy; Decision Choices and Conditions; Food and Beverage Industry; Middle East; North Africa
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      Moreno, Antonio, and Gamze Yucaoglu. "Kitopi: The Brave New World of Cloud Kitchens." Harvard Business School Case 621-102, April 2021. (Revised May 2021.)
      • 2021
      • Article

      Fair Influence Maximization: A Welfare Optimization Approach

      By: Aida Rahmattalabi, Shahin Jabbari, Himabindu Lakkaraju, Phebe Vayanos, Max Izenberg, Ryan Brown, Eric Rice and Milind Tambe
      Several behavioral, social, and public health interventions, such as suicide/HIV prevention or community preparedness against natural disasters, leverage social network information to maximize outreach. Algorithmic influence maximization techniques have been proposed...  View Details
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      Rahmattalabi, Aida, Shahin Jabbari, Himabindu Lakkaraju, Phebe Vayanos, Max Izenberg, Ryan Brown, Eric Rice, and Milind Tambe. "Fair Influence Maximization: A Welfare Optimization Approach." Proceedings of the AAAI Conference on Artificial Intelligence 35th (2021).
      • March 2021
      • Article

      Targeted Price Controls on Supermarket Products

      By: Alberto Cavallo and Diego Aparicio
      We study the impact of targeted price controls for supermarket products in Argentina from 2007 to 2015. Using web scraping, we collected daily prices for controlled and non-controlled goods and measured the differential effects on inflation, product availability, and...  View Details
      Keywords: Prices; Controls; Price Dispersion; Economics; Price; Cost Management; Goods and Commodities; Retail Industry; Argentina
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      Cavallo, Alberto, and Diego Aparicio. "Targeted Price Controls on Supermarket Products." Review of Economics and Statistics 103, no. 1 (March 2021): 60–71.
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