Publications
Publications
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(119,727)
- Faculty Publications (3,297)
- 2023
- Working Paper
An Experimental Design for Anytime-Valid Causal Inference on Multi-Armed Bandits
By: Biyonka Liang and Iavor I. Bojinov
Typically, multi-armed bandit (MAB) experiments are analyzed at the end of the study and thus require the analyst to specify a fixed sample size in advance. However, in many online learning applications, it is advantageous to continuously produce inference on the... View Details
- 2024
- Working Paper
Anytime-Valid Inference in Linear Models and Regression-Adjusted Causal Inference
By: Michael Lindon, Dae Woong Ham, Martin Tingley and Iavor I. Bojinov
Linear regression adjustment is commonly used to analyze randomized controlled experiments due to its efficiency and robustness against model misspecification. Current testing and interval estimation procedures leverage the asymptotic distribution of such estimators to... View Details
- 2024
- Working Paper
Design of Panel Experiments with Spatial and Temporal Interference
By: Tu Ni, Iavor Bojinov and Jinglong Zhao
One of the main practical challenges companies face when running experiments (or A/B tests) over a panel is interference, the setting where one experimental unit's treatment assignment at one time period impacts another's outcomes, possibly at the following time... View Details
Keywords: Research
- 2023
- Working Paper
Design-Based Inference for Multi-arm Bandits
By: Dae Woong Ham, Iavor I. Bojinov, Michael Lindon and Martin Tingley
Multi-arm bandits are gaining popularity as they enable real-world sequential decision-making across application areas, including clinical trials, recommender systems, and online decision-making. Consequently, there is an increased desire to use the available... View Details
- 2021
- Working Paper
Quantifying the Value of Iterative Experimentation
By: Iavor I Bojinov and Jialiang Mao
Over the past decade, most technology companies and a growing number of conventional firms have adopted online experimentation (or A/B testing) into their product development process. Initially, A/B testing was deployed as a static procedure in which an experiment was... View Details
- March 2024 (Revised February 2025)
- Case
Doing Business in Buenos Aires, Argentina
By: Joseph B. Fuller, Alan D. MacCormack, Nori Gerardo Lietz, Leonard A. Schlesinger, Karina Souza and Zeke Gillman
This case examines the challenges and opportunities of doing business in Argentina. It highlights Argentina's economic and political transformation in the decades leading up to 2024. The case gives an overview of some of the main obstacles faced by businesses operating... View Details
- March 2024 (Revised February 2025)
- Case
Doing Business in São Paulo, Brazil
The case gives readers an overview of key factors of doing business in Brazil, including Brazil’s economic transformation since its colonial years until 2023, when leftist President Luiz Inácio Lula da Silva was sworn in for his third term, after the most polarized... View Details
- March 2024
- Teaching Note
Experimentation at Yelp
By: Iavor Bojinov and Jessie Li
Teaching Note for HBS Case No. 621-064. View Details
- March 2024 (Revised March 2025)
- Background Note
Physical Climate Risk
By: Michael W. Toffel, Spencer Glendon and Alison Smart
This note describes how managers can identify and manage their company’s physical climate risks, which can increase their operations and supply chain costs and risks, and affect demand for their goods and services. Can be paired with the video “Preparing business... View Details
- March 2024
- Article
Being Together in Place as a Catalyst for Scientific Advance
By: Eamon Duede, Misha Teplitskiy, Karim R. Lakhani and James Evans
The COVID-19 pandemic necessitated social distancing at every level of society, including universities and research institutes, raising essential questions concerning the continuing importance of physical proximity for scientific and scholarly advance. Using customized... View Details
- March 2024
- Article
Do Safety Management System Standards Indicate Safer Operations? Evidence from the OHSAS 18001 Occupational Health and Safety Standard
By: Kala Viswanathan, Matthew S. Johnson and Michael W. Toffel
Problem definition: Given the enormous disruptions and costs of occupational injuries, companies and buyers are increasingly looking to voluntary occupational health and safety standards to improve worker safety. Yet because these standards only require... View Details
- March 2024
- Article
Medicare Price Negotiation and Pharmaceutical Innovation Following the Inflation Reduction Act
By: Matthew Vogel, Pragya Kakani, Amitabh Chandra and Rena M. Conti
The Inflation Reduction Act (IRA) requires Medicare to negotiate lower prices for some medicines with high Medicare spending. Using historical data from public and proprietary sources to apply the IRA's negotiation criteria retrospectively, we identify all drugs that... View Details
- February 2024
- Supplement
Fusion Industry Association: Igniting the Future of Clean Energy
By: Kyle Myers and Joshua Lev Krieger
- February 2024
- Teaching Note
Fusion Industry Association: Igniting the Future of Clean Energy
Teaching Note for HBS Case No. 624-064. This Teaching Note explores the Fusion Industry Association's efforts to advance commercial fusion energy, highlighting challenges in innovation, regulation, market structure, and financing within the emerging technology sector... View Details
- February 2024 (Revised February 2024)
- Teaching Note
Kermit PPI
By: Kyle Myers
Teaching Note for HBS Case No. 622-007. View Details
- February 2024
- Teaching Note
Orchadio's First Two Split Experiments
By: Iavor I. Bojinov and Jessie Li
Teaching Note for HBS Case No. 622-015. View Details
- February 2024
- Background Note
Frederick Herzberg on Motivating Employees
By: Willy C. Shih
This background note summarizes Frederick Herzberg's development of his motivation-hygiene theory, his theory regarding job enrichment, and how the theory has evolved. This is at the core of extrinsic versus intrinsic motivation. View Details
- February 26, 2024
- Article
Making Workplaces Safer Through Machine Learning
By: Matthew S. Johnson, David I. Levine and Michael W. Toffel
Machine learning algorithms can dramatically improve regulatory effectiveness. This short article describes the authors' scholarly work that shows how the U.S. Occupational Safety and Health Administration (OSHA) could have reduced nearly twice as many occupational... View Details
- February 2024 (Revised February 2025)
- Case
Doing Business in Ho Chi Minh City, Vietnam
By: Karen G. Mills, Allison H. Mnookin, Leonard A. Schlesinger, Shu Lin, Julianne Bliss and Morgane Herculano
Le Thi Thu Thuy, Vice Chairwoman of Vingroup, the largest private conglomerate in Vietnam, and Global CEO of VinFast, Vingroup’s automotive subsidiary established in 2017, was contemplating VinFast’s future strategy. Domestically, the EV market in Vietnam was in its... View Details