New Study Proposes Optimal Product Ranking Strategy for Online Platforms
Columbia Business School Research Suggests Companies Can Reduce Consumer Regret by Promoting Both Highly Rated Products and Newer Products
Columbia Business School Research Suggests Companies Can Reduce Consumer Regret by Promoting Both Highly Rated Products and Newer Products
Five Studies by Columbia Business School Faculty Present Insights into Pivotal Delivery Times, Emerging Fashion Trends, Advertising Strategies, and Customer Behavior
New Columbia Business School Study Shows That Ads Drive Lower-Quality Searches and Creates a More Accurate Model to Understand Customer Preferences
In online advertising, advertisers purchase ad placements by participating in a long sequence of repeated auctions. One of the most important features that advertising platforms often provide and advertisers often use is budget management, which allows advertisers to control their cumulative expenditures. Advertisers typically declare the maximum daily amount they are willing to pay, and the platform adjusts allocations and payments to guarantee that cumulative expenditures do not exceed budgets.
Routines shape many aspects of day-to-day consumption. While prior work has established the importance of habits in consumer behavior, little work has been done to understand the implications of routines — which we define as repeated behaviors with recurring, temporal structures — for customer management. One reason for this dearth is the difficulty of measuring routines from transaction data, particularly when routines vary substantially across customers. We propose a new approach for doing so, which we apply in the context of ridesharing.
Gita V. Johar (PhD NYU 1993; MBA Indian Institute of Management Calcutta 1985) has been on the faculty of Columbia Business School since 1992 and is currently the Meyer Feldberg Professor of Business. Professor Johar received the Distinguished Alumnus award from IIMC in 2019. She served as the school’s inaugural Vice Dean for Diversity, Equity and Inclusion from 2019 to 2021, Faculty Director of Online Initiatives from 2014 to 2017, Senior Vice Dean from 2011 to 2014, and as the inaugural Vice Dean for Research from 2010 to 2011.
Mark A. Cohen has been in the retail business since his graduation from Columbia University in 1971. (MBA '71, BS Electrical Engineering '69) He has over 20 years experience in president/chairman, chief executive officer level positions. Most recently he was Chairman/CEO of Sears Canada Inc, Chief Marketing Officer and President of Softlines of Sears Roebuck & Co., Chairman/CEO of Bradlees Inc., and Chairman/CEO of Lazarus Department Stores. He has also held positions with Abraham & Strauss, The Gap, Lord Taylor, Mervyn's and Goldsmith's Department Stores.
You’re running all out but failing to reach a goal. Your team is grinding through tasks and decisions. If companies want to grow, compete, and win they need to accelerate decisions. It is estimated the average American makes 70 decisions per day, according to Professor Sheena S. Iyengar, at Columbia Business School. Given the frequency, the real need is for a practical approach to lead in a data-driven world.
Professor Netzer's expertise centers on one of the major business challenges of the data-rich environment: developing quantitative methods that leverage data to gain a deeper understanding of customer behavior and guide firms' decisions. He focuses primarily on building statistical and econometric models to measure consumer preferences and understand how customer choices change over time, and across contexts. Most notably, he has developed a framework for managing firms' customer bases through dynamic segmentation.
Paul has over 25 years of experience in strategic planning, new product development, acquisition integration, alliance management, and consultative sales. He is a systems thinker and business builder focused on making the complex simple, understanding where technology and innovation are headed, and helping to answer what it means for any business. In his current work with Google, he is unlocking the next generation of business value through cloud computing and related technologies.
As Vice President of Global Marketplace Insights at American Express, Christopher Frank leads the advertising, brand, and communications research and analytics group. Prior to joining American Express, he spent ten years at Microsoft as Senior Director in Corporate Marketing Research.
Professor Ran Kivetz is a tenured professor at Columbia University Business School, where he holds the Philip H. Geier endowed chair. Professor Kivetz is a leading expert in the areas of behavioral economics, decision-making, marketing, customer behavior, incentives, and innovation. His experience in these fields includes over twenty years of research, management, consulting, and teaching. His latest research explores political science and political psychology through the lens of behavioral economics and decision research.
Robert J. Morais is an anthropologist with a 35+ year career in advertising and market research, and a Lecturer at Columbia Business School. He has taught in the full time MBA, EMBA, and Entrepreneurship and Competitiveness in Latin America, Africa, and America programs. Morais was a Principal/Co-owner of a market research firm for 11 years, preceded by 25 years with advertising agencies rising to Chief Strategic Officer.
With nearly 90 academic publications, over 50 students, half a dozen patents, and nearly 10 million online followers, Moran Cerf is one of the leaders in the research and applications of neuroscience in business.
Cerf holds a PhD in neuroscience (Caltech), an MA in Philosophy, and a BSc in Physics (Tel-Aviv University. He has taught leadership and marketing at NYU and the Kellogg School of Management, where he was a professor of neuroscience and business for nearly a decade.
Kamel Jedidi is the Jerome A. Chazen Professor of Global Business at Columbia Business School, New York. He holds a bachelor’s degree in Economics from University of Tunis and Master and Ph.D. degrees in Marketing and Statistics from the Wharton School, University of Pennsylvania. Dr. Jedidi has extensively published in leading marketing and statistical journals. His research interests include pricing, product positioning, and market segmentation.
Rajeev Kohli is the Ira Leon Rennert Professor of Business at Columbia Business School. His research interests are in mathematical models of non-compensatory choice, product design and recommendation systems. He has published papers in leading journals in marketing, operations research, discrete mathematics and mathematical psychology. He has also served on the editorial boards of leading journals including Management Science and Operations Research.
Melanie Brucks is interested in creativity and innovation. Her research focuses on the processes involved in generating and selecting innovative ideas and on the cognitive and behavioral consequences of technological innovations. Her findings help marketers better design ideation activities to maximize productivity and fuel innovation.
Before joining Columbia, Melanie Brucks received a PhD in Marketing from Stanford Graduate School of Business.
Stephen P. Zeldes is the Frank R. Lautenberg Professor of Economics and Public Policy at Columbia University’s Graduate School of Business. He serves as co-director of the Richard Paul Richman Center for Business, Law, and Public Policy at Columbia University. He served as chair of the school’s Finance and Economics division from 2014-17.
Eric Johnson is a faculty member at the Columbia Business School at Columbia University where he is the inaugural holder of the Norman Eig Chair of Business, and Director of the Center for Decision Sciences. His research examines the interface between Behavioral Decision Research, Economics and the decisions made by consumers, managers, and their implications for public policy, markets and marketing.
Vicki Morwitz is the Bruce Greenwald Professor of Business and Professor of Marketing at Columbia University's Graduate School of Business. Professor Morwitz earned a B.S in applied mathematics and computer science from Rutgers University, an M.S. in operations research from Polytechnic Institute of New York (now NYU’s Tandon School), and an M.A. in statistics and a Ph.D. in marketing from the Wharton School at the University of Pennsylvania. Prior to joining Columbia, she served on the faculty of the Stern School at NYU for 28 years.
Eric Johnson is a faculty member at the Columbia Business School at Columbia University where he is the inaugural holder of the Norman Eig Chair of Business, and Director of the Center for Decision Sciences. His research examines the interface between Behavioral Decision Research, Economics and the decisions made by consumers, managers, and their implications for public policy, markets and marketing.
Kinshuk Jerath is the Arthur F. Burns Chair of Free and Competitive Enterprise, Professor of Business in the Marketing division at Columbia Business School. He is also the Chair of the Marketing Division. His research is in technology-enabled marketing, primarily in online advertising, online and offline retailing, sales force management and customer management. His research has appeared in top-tier marketing and operations management journals, such as Marketing Science, Journal of Marketing Research, Management Science and Operations Research.
Silvia Bellezza is an Associate Professor of Business in Marketing at Columbia Business School. Her research focuses on status signaling in consumption. Specifically, her work examines traditional status signals (e.g., conventional luxury brands and products) and alternative status signals (e.g., minimalism, vintage, sustainable luxury).
Elizabeth Friedman is a faculty member at Columbia’s Graduate School of Business. She researches consumer decision making. Her research explores why consumers are often reluctant to buy certain items even when the items provide value, how consumers’ active goals can affect their decision process, and how small changes to the choice context can affect what consumers consider and the resulting choices they make.
With nearly 90 academic publications, over 50 students, half a dozen patents, and nearly 10 million online followers, Moran Cerf is one of the leaders in the research and applications of neuroscience in business.
Cerf holds a PhD in neuroscience (Caltech), an MA in Philosophy, and a BSc in Physics (Tel-Aviv University. He has taught leadership and marketing at NYU and the Kellogg School of Management, where he was a professor of neuroscience and business for nearly a decade.
Professor Ran Kivetz is a tenured professor at Columbia University Business School, where he holds the Philip H. Geier endowed chair. Professor Kivetz is a leading expert in the areas of behavioral economics, decision-making, marketing, customer behavior, incentives, and innovation. His experience in these fields includes over twenty years of research, management, consulting, and teaching. His latest research explores political science and political psychology through the lens of behavioral economics and decision research.
Stephen Zagor is a New York City based Consultant and Educator, focusing on restaurants and food businesses. He has developed an extensive knowledge of the culinary industry, specializing in the business side of food enterprises.
As a consultant Steve has provided comprehensive support to a wide variety of clients including entrepreneurs starting restaurants, food retail businesses and food products. His clients have included large public companies, investment funds, government agencies, lawyers, large restaurant groups and small food business owners.
Kamel Jedidi is the Jerome A. Chazen Professor of Global Business at Columbia Business School, New York. He holds a bachelor’s degree in Economics from University of Tunis and Master and Ph.D. degrees in Marketing and Statistics from the Wharton School, University of Pennsylvania. Dr. Jedidi has extensively published in leading marketing and statistical journals. His research interests include pricing, product positioning, and market segmentation.
Professor Selden teaches debt markets and lectures on shareholder value creation for business groups around the world. A recipient of grants from the National Science Foundation and the Center for Operations Research and Econometrics, Selden has analyzed models of portfolio allocation and preference determination. His current research focuses on linking sales and marketing efforts to a corporation’s share price. He is also applying his findings to Executive Education programs.
Robert J. Morais is an anthropologist with a 35+ year career in advertising and market research, and a Lecturer at Columbia Business School. He has taught in the full time MBA, EMBA, and Entrepreneurship and Competitiveness in Latin America, Africa, and America programs. Morais was a Principal/Co-owner of a market research firm for 11 years, preceded by 25 years with advertising agencies rising to Chief Strategic Officer.
Stephen P. Zeldes is the Frank R. Lautenberg Professor of Economics and Public Policy at Columbia University’s Graduate School of Business. He serves as co-director of the Richard Paul Richman Center for Business, Law, and Public Policy at Columbia University. He served as chair of the school’s Finance and Economics division from 2014-17.
Professor Holbrook has taught marketing strategy, sales management, consumer behavior, and commercial communication in the culture of consumption. He has conducted research on the validity of perceptual and preference mapping and on consumer aesthetics applied to responses toward radio listening, jazz recordings, and classical music.
Michael Morris is a Chaired Professor in the Management Division at CBS and also serves as Professor in the Psychology Department of Columbia University.
He teaches MBA and executive-level classes on leadership, teamwork, communication, negotiation, and decision-making. In 2016, he was honored with the Dean's Award for Innovation in the Curriculum for creating two of the school's most popular elective courses: The Leader's Voice and the Patagonia Leadership Expedition.
Professor Lehmann has taught several different marketing courses. His research focuses on individual and group choice and decision making, the adoption of innovation and new product development, and the management and valuation of marketing assets (brands, customers). He is also interested in knowledge accumulation, empirical generalizations, and information use. Lehmann has published more than 200 articles and books, serves on the editorial boards of several academic journals, and is the founding editor of Marketing Letters.
Vicki Morwitz is the Bruce Greenwald Professor of Business and Professor of Marketing at Columbia University's Graduate School of Business. Professor Morwitz earned a B.S in applied mathematics and computer science from Rutgers University, an M.S. in operations research from Polytechnic Institute of New York (now NYU’s Tandon School), and an M.A. in statistics and a Ph.D. in marketing from the Wharton School at the University of Pennsylvania. Prior to joining Columbia, she served on the faculty of the Stern School at NYU for 28 years.
Rajeev Kohli is the Ira Leon Rennert Professor of Business at Columbia Business School. His research interests are in mathematical models of non-compensatory choice, product design and recommendation systems. He has published papers in leading journals in marketing, operations research, discrete mathematics and mathematical psychology. He has also served on the editorial boards of leading journals including Management Science and Operations Research.
Sandra Matz takes a Big Data approach to studying human behavior in a variety of business-related domains. She combines methodologies from psychology and computer science – including machine learning, experimental designs, online surveys, and field studies – to explore the relationships between people’s psychological characteristics (e.g. their personality) and the digital footprints they leave with every step they take in the digital environment (e.g. their Facebook Likes or their credit card transactions).
Kristen Lane is interested in motivation, identity, and misinformation. Her research focuses on the social- and identity-based processes that drive how people choose to read and share information and on the cognitive and behavioral consequences of online socializing spaces. Her findings help marketers and policy makers design better information environments (e.g., social media) to reduce the spread of misleading or deceptive information.
Before joining Columbia, Kristen Lane received a Ph.D. in Marketing from the University of Arizona Eller College of Management.
Gita V. Johar (PhD NYU 1993; MBA Indian Institute of Management Calcutta 1985) has been on the faculty of Columbia Business School since 1992 and is currently the Meyer Feldberg Professor of Business. Professor Johar received the Distinguished Alumnus award from IIMC in 2019. She served as the school’s inaugural Vice Dean for Diversity, Equity and Inclusion from 2019 to 2021, Faculty Director of Online Initiatives from 2014 to 2017, Senior Vice Dean from 2011 to 2014, and as the inaugural Vice Dean for Research from 2010 to 2011.
Melanie Brucks is interested in creativity and innovation. Her research focuses on the processes involved in generating and selecting innovative ideas and on the cognitive and behavioral consequences of technological innovations. Her findings help marketers better design ideation activities to maximize productivity and fuel innovation.
Before joining Columbia, Melanie Brucks received a PhD in Marketing from Stanford Graduate School of Business.
Professor Schmitt is Robert D. Calkins Professor of International Business at Columbia Business School. He researches, teaches, and advises corporations on branding, innovation, creative strategy, and customer experience.
Mark A. Cohen has been in the retail business since his graduation from Columbia University in 1971. (MBA '71, BS Electrical Engineering '69) He has over 20 years experience in president/chairman, chief executive officer level positions. Most recently he was Chairman/CEO of Sears Canada Inc, Chief Marketing Officer and President of Softlines of Sears Roebuck & Co., Chairman/CEO of Bradlees Inc., and Chairman/CEO of Lazarus Department Stores. He has also held positions with Abraham & Strauss, The Gap, Lord Taylor, Mervyn's and Goldsmith's Department Stores.
Constituency mobilization is a widely prevalent corporate political strategy, yet we lack systematic evidence on the scope of its effectiveness. One emerging form of constituency mobilization is user mobilization, wherein a company focuses on rallying political support among its users. This approach differs from traditional lobbying, which relies on tightly controlled insider strategies to exert influence over lawmakers. In our study of user mobilization by platform-based companies in the U.S.
We develop a financial-economic model for carbon pricing with an explicit representation of decision making under risk and uncertainty that is consistent with the Intergovernmental Panel on Climate Change’s sixth assessment report. We show that risk associated with high damages in the long term leads to stringent mitigation of carbon dioxide emissions in the near term, and find that this approach provides economic support for stringent warming targets across a variety of specifications.
We consider a New Keynesian model with strategic monetary and fiscal interactions. The fiscal authority maximizes social welfare. Monetary policy is delegated to a central bank with an anti-inflation bias that suffers from a lack of commitment. The impact of central bank hawkishness on debt issuance is non-monotonic because increased
We consider a New Keynesian model with strategic monetary and fiscal interactions. The fiscal authority maximizes social welfare. Monetary policy is delegated to a central bank with an anti-inflation bias that suffers from a lack of commitment. The impact of central bank hawkishness on debt issuance is non-monotonic because increased
The United States recently passed major federal laws supporting the energy transition, and analyses suggest that their successful implementation could reduce US emissions more than 40% below 2005 levels by 2030. However, achieving maximal emissions reductions would require frictionless supply and demand responses to the laws’ incentives and implementation that avoids polarization and efforts to repeal or undercut them. In this Perspective, we discuss some of these supply, demand and polarization challenges.
‘Moral hazard’ links geoengineering to mitigation via the fear that either solar geoengineering (solar radiation management, SRM) or carbon dioxide removal (CDR) might crowd out the desire to cut emissions. Fear of this crowding-out effect ranks among the most frequently cited risks of (solar) geoengineering. We here test moral hazard versus its inverse in a large-scale, revealed-preference experiment (n~340,000) on Facebook and find little to no support for either outcome. For the most part, talking about SRM or CDR does not motivate our study population to support a large U.S.
In this paper, we develop a computational measure of the firm-level rhetorical nationalism. We first review the literature and develop a four-dimensional theoretical framework of nationalism relevant to firms: national pride, anti-foreign, dominant agenda, and corporate role. We then use machine-learning-based text analysis of over 41,000 annual reports of Chinese public firms from 2000 to 2020 and identify a dictionary of words for each dimension.
How much will it cost to meaningfully reduce greenhouse gas (GHG) emissions on a global scale? The answer is critical for assessments of how to address climate change—affecting public support, political will, and policy choices. We find that the “bottom-up” estimation approach emphasized by the United Nations Intergovernmental Panel on Climate Change (IPCC) reports considerably lower costs for emission reductions than leading “top-down” economic models.
We propose a tractable model of dynamic investment, spinoffs, financing, and risk management for a multi-division firm facing costly external finance. Our analysis formalizes