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Decision, Risk, and Operations

Decision, Risk, and Operations
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Letter From the Chair

Mark Broadie, Chair of Decision, Risk, and Operations Division
Mark Broadie, Chair of Decision, Risk, and Operations Division

The Quantitative Advantage

The Decision, Risk, and Operations Division is a world leader in research and instruction in quantitative, data-driven decision-making through the use modeling, optimization and the management of uncertainty, and all aspects of the operations and analytics functions in firms.

Application areas in which the division has strong expertise include business analytics; e-commerce; revenue management; logistics, distribution and supply-chain management; resource networks and service systems; healthcare operations; market design; quantitative finance with emphasis on the valuation of derivative securities, modern market microstructure, and risk management; and econometrics.

An important aspect of the mission of the division is to foster collaboration with industry and impact society by solving important practical problems such as helping hospitals care for their patients in a more efficient and cost effective manner; coordination and risk mitigation in global supply chains; design of dynamic and responsive pricing algorithms in a variety of industries; creation of innovative securities trading algorithms; design of frameworks to measure systemic risk; and optimization of the operations of online marketplaces.

The division is actively involved in teaching in the MBA and PhD programs. In the MBA program, the division teaches the core courses on Managerial Statistics, Business Analytics, and Operations Management, and offers a suite of electives in various topics in Operations, Analytics, and Technology.

Mark Broadie


Carson Family Professor of Business;
Chair of Decision, Risk, and Operations Division

Affiliated Departments and Research Centers

The Computational Optimization Research Center

carries out advanced studies in the solution of difficult, large-scale optimization problems, with special focus on state-of-the-art implementation of modern algorithms.

Center for Applied Probability

provides an umbrella under which diverse research and educational activities in probability and its applications can be focused and supported.

Industrial Engineering and Operations Research

is the home to Financial Engineering, a multidisciplinary field that requests familiarity with financial theory, the methods of engineering, the tools of mathematics and the practice of programming.

The Center for Financial Engineering

is part of an interdisciplinary field of research where contributions from applied mathematics, economics, operations research, statistics and computer science have given birth to remarkable developments in market practice.

In the Media

Forbes
April 20, 2026

Retailers Navigate Tariffs Amid Rising Global Tensions

Columbia Business School’s Professor Nicole DeHoratius provided expert commentary to Forbes on how retailers are responding to tariffs and supply chain challenges. In the article by Danielle Chemtob, Professor DeHoratius discussed the implications of tariff refund systems and broader geopolitical tensions for retail operations and pricing strategies. 

Mentioned Faculty

Nicole DeHoratius

Nicole DeHoratius

Professor of Professional Practice in the Faculty of Business
Decision, Risk, and Operations Division
Faculty Director, Sustainable Operations Initiative, Tamer Institute for Social Enterprise and Climate Change.
Tamer Institute for Social Enterprise and Climate Change
Forbes Daily Newsletter
April 20, 2026

Tariff Refunds Unlikely To Reach Consumers

Highlighted by Columbia Business School, this media piece showcases Topics and Areas of Expertise about our esteemed faculty. The content is specifically curated from the publication that showcased the mentioned faculty and/or research, emphasizing its contributions in various fields. The featured Topics and Areas of Expertise reflects the school's commitment to sharing valuable insights and knowledge.

Mentioned Faculty

Nicole DeHoratius

Nicole DeHoratius

Professor of Professional Practice in the Faculty of Business
Decision, Risk, and Operations Division
Faculty Director, Sustainable Operations Initiative, Tamer Institute for Social Enterprise and Climate Change.
Tamer Institute for Social Enterprise and Climate Change
New York Times
April 8, 2026

Amazon and U.S. Postal Service Reach New Deal on Deliveries After Year of Talks

Highlighted by Columbia Business School, this media piece showcases Topics and Areas of Expertise about our esteemed faculty. The content is specifically curated from the publication that showcased the mentioned faculty and/or research, emphasizing its contributions in various fields. The featured Topics and Areas of Expertise reflects the school's commitment to sharing valuable insights and knowledge.

Mentioned Faculty

Nicole DeHoratius

Nicole DeHoratius

Professor of Professional Practice in the Faculty of Business
Decision, Risk, and Operations Division
Faculty Director, Sustainable Operations Initiative, Tamer Institute for Social Enterprise and Climate Change.
Tamer Institute for Social Enterprise and Climate Change
New York Times
April 8, 2026

Amazon and USPS Reach Delivery Agreement

Columbia Business School’s Professor Nicole DeHoratius provided expert commentary to The New York Times on the implications of a delivery agreement between Amazon and the U.S. Postal Service. In the article by Jenny Gross and Aimee Ortiz, Professor DeHoratius discussed how the partnership reflects evolving logistics strategies and changing dynamics in last-mile delivery. She highlighted the operational and economic considerations shaping large-scale distribution networks. 

Mentioned Faculty

Nicole DeHoratius

Nicole DeHoratius

Professor of Professional Practice in the Faculty of Business
Decision, Risk, and Operations Division
Faculty Director, Sustainable Operations Initiative, Tamer Institute for Social Enterprise and Climate Change.
Tamer Institute for Social Enterprise and Climate Change
Harvard Business School
April 7, 2026

“the Gen AI Playbook for Organizations” Wins 2025 HBR Prize

Columbia Business School’s Sheena Iyengar was recognized in a Harvard Business School announcement for receiving the Harvard Business Review Prize. The award honors outstanding contributions to management thinking, highlighting Iyengar’s influential research on decision-making and choice. Her work continues to shape how organizations and individuals approach complex decisions in business and everyday life. 

Mentioned Faculty

Sheena Iyengar

Sheena Iyengar

S. T. Lee Professor of Business; Chair of Management Division
Management Division
Vogue Business
March 16, 2026

Understanding Fashion’s Latest Supply Chain Shock

Columbia Business School’s Rita McGrath spoke with Vogue Business about how fashion companies must adapt their supply chain strategies in response to ongoing global disruptions. McGrath explained that firms can no longer rely solely on short-term resilience measures and instead need to continuously reconfigure their supply chains to remain competitive. Her insights highlight how businesses are shifting toward more flexible and adaptive models to navigate uncertainty in global trade and production. 

Mentioned Faculty

Rita McGrath

Rita McGrath

Academic Director in Executive Education
Executive Education

Research

The Missing Value of Data

Authors
Ankit Bhutani, Guillermo Ordonez, and Laura Veldkamp
Date
Forthcoming
Format
Journal Article
Journal
NBER Macroeconomics Annual 2026

Data assets are increasingly vital in modern economies, yet macroeconomic measurement is not well-adapted to capturing their value. Part of the problem is that data is an intangible asset: investments in data are missed in national accounts, and

Read More about The Missing Value of Data

Does AI cheapen talk? Theory and evidence from global entrepreneurship and hiring

Authors
Bo Cowgill, Pablo Hernández-Lagos, and Nataliya Wright
Date
Forthcoming
Format
Journal Article
Journal
Management Science

Screening human capital based on signals such as job applications or entrepreneurial pitches is crucial for organizations. Signals are often informative insofar as they require differential knowledge and effort to produce. Generative AI (GAI) complicates screening by lowering the cost of producing impressive signals. We model the informational effects of GAI, showing that applicants' access to GAI can increase—but also decrease—an evaluator's screening mistakes. This result depends on how GAI affects experts' signals compared to non-experts'.

Read More about Does AI cheapen talk? Theory and evidence from global entrepreneurship and hiring

Throwing Curveballs: A Language-Based Model of Curveball Questions in Quarterly Earnings Calls Uncovers their Consequences and Antecedents

Authors
Nandil Bhatia and Wei Cai
Date
Forthcoming
Format
Journal Article
Journal
Strategic Management Journal

In evaluative contexts, evaluatees typically seek to present themselves in a favorable light, while evaluators ask penetrating questions to assess these claims. Here we develop a framework to identify curveball questions: ones that are on-topic yet perplexing (i.e., difficult to predict) relative to past discourse. We develop a language-based measure of curveball questions and apply it to a corpus of quarterly earnings calls.

Read More about Throwing Curveballs: A Language-Based Model of Curveball Questions in Quarterly Earnings Calls Uncovers their Consequences and Antecedents

Market Power and Capital Constraints

Authors
Milena Wittwer and Jason Allen
Date
Forthcoming
Format
Journal Article
Journal
American Economic Review

We explore how traders' equity capitalization influences asset prices in a framework that accounts for market power. In our model  traders with capital constraints engage in transactions in an imperfectly competitive market. We demonstrate that looser capital constraints elevate both asset prices and price impact, which diminishes market liquidity. Using Canadian Treasury auction data, we illustrate how to apply our model to quantify these effects. We estimate the shadow costs of capital constraints by exploiting a temporary policy exemption during 2020-2021.

Read More about Market Power and Capital Constraints

Monetary Policy without Commitment

Authors
Hassan Afrouzi, Marina Halac, Kenneth Rogoff, and Pierre Yared
Date
Forthcoming
Format
Journal Article
Journal
American Economic Review

This paper studies the implications of central bank credibility for long-run inflation and inflation dynamics. We introduce central bank lack of commitment into a standard non-linear New Keynesian economy with sticky-price monopolistically competitive firms. Inflation is driven by the interaction of lack of commitment and the economic environment. We show that long-run inflation increases following an unanticipated permanent increase in the labor wedge or decrease in the elasticity of substitution across varieties. In the transition, inflation overshoots and then gradually declines.

Read More about Monetary Policy without Commitment

Ideas

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