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Show Results For
- All HBS Web
(302)
- People (1)
- News (111)
- Research (148)
- Events (1)
- Multimedia (4)
- Faculty Publications (94)
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- April 2020
- Article
Designs for Estimating the Treatment Effect in Networks with Interference
By: Ravi Jagadeesan, Natesh S. Pillai and Alexander Volfovsky
In this paper, we introduce new, easily implementable designs for drawing causal inference from randomized experiments on networks with interference. Inspired by the idea of matching in observational studies, we introduce the notion of considering a treatment... View Details
Keywords: Experimental Design; Network Inference; Neyman Estimator; Symmetric Interference Model; Homophily
Jagadeesan, Ravi, Natesh S. Pillai, and Alexander Volfovsky. "Designs for Estimating the Treatment Effect in Networks with Interference." Annals of Statistics 48, no. 2 (April 2020): 679–712.
- 11 Oct 2016
- First Look
October 11, 2016
behavior; (3) a top-down or laissez-faire style by the leader, which prevents honest conversation about problems; (4) a lack of coordination across businesses, functions, or regions due to poor organizational design; (5) inadequate... View Details
Keywords: Sean Silverthorne
- May 2005 (Revised September 2015)
- Case
Hans Wilsdorf and Rolex
By: Geoffrey Jones and Alexander Atzberger
Explores the creation of the Rolex watch by Hans Wilsdorf. Provides a case study of how one of the world's leading luxury brands was created and, more generally, provides a vehicle for exploring the competitive advantage of Switzerland in watchmaking (and other... View Details
Keywords: Entrepreneurship; Geographic Location; Brands and Branding; Luxury; Competitive Advantage; Consumer Products Industry; Switzerland
Jones, Geoffrey, and Alexander Atzberger. "Hans Wilsdorf and Rolex." Harvard Business School Case 805-138, May 2005. (Revised September 2015.)
- Forthcoming
- Article
Proximate (Co-)Working: Knowledge Spillovers and Social Interactions
By: Maria P. Roche, Alexander Oettl and Christian Catalini
We examine the influence of physical proximity on between-start-up knowledge spillovers at one of the largest technology coworking hubs in the United States. Relying on the exogenous assignment of office space to the hub’s 251 start-ups, we find that proximity... View Details
Keywords: Knowledge Integration; Coworking; Microgeography; Business Startups; Technology Adoption; Diversity; Interpersonal Communication; Knowledge Sharing; Geographic Location
Roche, Maria P., Alexander Oettl, and Christian Catalini. "Proximate (Co-)Working: Knowledge Spillovers and Social Interactions." Management Science (forthcoming). (Pre-published online February 14, 2024.)
- August 2008 (Revised July 2009)
- Supplement
Gazprom (B): Energy and Strategy in a New Era
By: Rawi E. Abdelal, Sogomon Tarontsi and Alexander Jorov
President Putin publicly stated that Gazprom, the largest natural gas producer in the world, was a powerful political lever of the Russian state in the world and a keystone in the foundation of the country's energy security. Thus the top leadership of Russia has... View Details
Keywords: Non-Renewable Energy; Growth and Development Strategy; State Ownership; Business and Government Relations; Expansion; Energy Industry; Russia; Ukraine
Abdelal, Rawi E., Sogomon Tarontsi, and Alexander Jorov. "Gazprom (B): Energy and Strategy in a New Era." Harvard Business School Supplement 709-009, August 2008. (Revised July 2009.)
- January 2021
- Article
Chain Stability in Trading Networks
By: John William Hatfield, Scott Duke Kominers, Alexandru Nichifor, Michael Ostrovsky and Alexander Westkamp
We show that in general trading networks with bilateral contracts, a suitably adapted chain stability concept (Ostrovsky, 2008) is equivalent to stability (Hatfield and Kominers, 2012; Hatfield et al., 2013) if all agents' preferences are fully substitutable and... View Details
Keywords: Matching; Trading Networks; Chain Stability; Stability; Competitive Equilibria; Full Substitutability; Laws Of Aggregate Supply And Demand; Contracts; Market Design; Balance and Stability
Hatfield, John William, Scott Duke Kominers, Alexandru Nichifor, Michael Ostrovsky, and Alexander Westkamp. "Chain Stability in Trading Networks." Theoretical Economics 16, no. 1 (January 2021): 197–234.
- 2023
- Working Paper
Rising Markups and the Role of Consumer Preferences
By: Hendrik Döpper, Alexander MacKay, Nathan H. Miller and Joel Stiebale
We characterize the evolution of markups for consumer products in the United States
from 2006 to 2019. We use detailed data on prices and quantities for products in more
than 100 distinct product categories to estimate demand systems with flexible... View Details
Keywords: Market Power; Markups; Demand Estimation; Consumer Products; Retailers; Product; Price; Demand and Consumers; Consumer Behavior
Döpper, Hendrik, Alexander MacKay, Nathan H. Miller, and Joel Stiebale. "Rising Markups and the Role of Consumer Preferences." Harvard Business School Working Paper, No. 22-025, October 2021. (Revised March 2023. Direct download.)
- June 2018
- Article
Deviations from Covered Interest Rate Parity
By: Wenxin Du, Alexander Tepper and Adrien Verdelhan
We find that deviations from the covered interest rate parity (CIP) condition imply large, persistent, and systematic arbitrage opportunities in one of the largest asset markets in the world. Contrary to the common view, these deviations for major currencies are not... View Details
Du, Wenxin, Alexander Tepper, and Adrien Verdelhan. "Deviations from Covered Interest Rate Parity." Journal of Finance 73, no. 3 (June 2018): 915–957.
- August 2009
- Article
Rewriting History
By: Alexander Ljungqvist, Christopher J. Malloy and Felicia Marston
We document widespread ex post changes to the historical contents of the I/B/E/S analyst stock recommendations database. Across a sequence of seven downloads of the entire I/B/E/S recommendations database, obtained between 2000 and 2007, we find that between 6,594... View Details
Keywords: Competency and Skills; Stocks; Profit; Market Transactions; Reputation; Financial Services Industry
Ljungqvist, Alexander, Christopher J. Malloy, and Felicia Marston. "Rewriting History." Journal of Finance 64, no. 4 (August 2009): 1935–1960.
- 2008
- Working Paper
Rewriting History
By: Alexander Ljungqvist, Christopher J. Malloy and Felicia Marston
We document widespread ex post changes to the historical contents of the I/B/E/S analyst stock recommendations database. Across a sequence of seven downloads of the entire I/B/E/S recommendations database, obtained between 2000 and 2007, we find that between 6,594... View Details
- 06 Mar 2012
- First Look
First Look: March 6
productive. The authors have studied when 161 countries adopted 104 technologies over the past 200 years, and they conclude that profound economic advantages-as measured by per capita income-accrue to early adopters of technology. Read... View Details
Keywords: Sean Silverthorne
- 14 Nov 2017
- First Look
New Research and Ideas: November 14, 2017
experts to discuss how researchers can impact a broader audience, by lending their scientific expertise to pressing social issues, current events, and public debates. The landmark Brown v. Board of Education case, in which the Supreme... View Details
Keywords: Carmen Nobel
- Forthcoming
- Article
The Rise of Remote Work: Evidence on Productivity and Preferences from Firm and Worker Surveys
By: Alexander Bartik, Zoë Cullen, Edward L. Glaeser, Michael Luca and Christopher Stanton
Drawing on surveys of small business owners and employees, we present three main findings about the evolution of remote work after the onset of COVID-19. First, uptake of remote work was abrupt and widespread in jobs suitable for telework according to the task-based... View Details
Bartik, Alexander, Zoë Cullen, Edward L. Glaeser, Michael Luca, and Christopher Stanton. "The Rise of Remote Work: Evidence on Productivity and Preferences from Firm and Worker Surveys." Journal of Economics & Management Strategy (forthcoming). (Pre-published online October 24, 2024.)
- February 2023
- Teaching Note
Cost Plus Drugs
By: Alexander J. MacKay
Teaching Note for HBS Case No. 723-362. View Details
- December 2022
- Case
LIV Golf
By: Alexander J. MacKay
On March 17, 2022, Greg Norman, CEO of LIV Golf, announced the 8-tournament schedule for the inaugural season of the LIV Golf Invitational Series. Norman, a retired professional golfer and former world #1, was helming the league to compete with the PGA Tour, which was... View Details
Keywords: Anti-trust; Golf; ＂Sports Organizations,; Sports Management; Competition; Competition Policy; Strategy; Strategy And Leadership; Competitive Strategy; Sports; Sports Industry
MacKay, Alexander J. "LIV Golf." Harvard Business School Case 723-371, December 2022.
- September 2020 (Revised February 2023)
- Teaching Note
Uber: Competing Globally
By: Alexander J. MacKay
Teaching Note for HBS Case No. 720-404. View Details
Keywords: Business Ventures; Business Growth and Maturation; Business Model; Geography; Geographic Location; Geographic Scope; Global Strategy; Globalization; Multinational Firms and Management; Globalized Markets and Industries; Governance; Governance Controls; Governing Rules, Regulations, and Reforms; Innovation and Invention; Disruptive Innovation; Innovation Strategy; Law; Management; Growth and Development; Growth Management; Markets; Demand and Consumers; Consumer Behavior; Network Effects; Emerging Markets; Market Design; Market Entry and Exit; Market Participation; Supply and Industry; Industry Structures; Planning; Strategic Planning; Relationships; Business and Community Relations; Business and Government Relations; Business and Stakeholder Relations; Labor and Management Relations; Networks; Adaptation; Strategy; Business Strategy; Competition; Competitive Advantage; Competitive Strategy; Expansion; Information Technology; Mobile and Wireless Technology; Digital Platforms; Transportation Networks; Transportation; Transportation Industry; Technology Industry; Africa; Ghana; Asia; China; Shanghai; Shanghai Shi; India; New Delhi; Europe; United Kingdom; London; England; Latin America; North and Central America; United States; New York (city, NY); New York (state, US); South America; Colombia
- February 2023 (Revised August 2023)
- Course Overview Note
Reshaping Competition: Introduction to the Course: Note for Students
By: Alexander J. MacKay
MacKay, Alexander J. "Reshaping Competition: Introduction to the Course: Note for Students." Harvard Business School Course Overview Note 723-428, February 2023. (Revised August 2023.)
- September 2020
- Supplement
Commonwealth Joe: January 2020 Update from CEO Robert Peck
By: Alexander J. MacKay
At the end of 2016, the leadership team of Commonwealth Joe Coffee Roasters—Robert Peck, Chase Damiano, and Jeremy Martin—had begun an ambitious retail expansion strategy in the Washington, D.C. metropolitan area for their specialty coffee business. That October, they... View Details
Keywords: Cold Brew Coffee; Specialty Coffee; On-premise Coffee Market; Retail Expansion Strategy; Entrepreneurship; Business Model; Brands and Branding; Expansion; Strategy; Decision Making; Food and Beverage Industry; Retail Industry
MacKay, Alexander J. "Commonwealth Joe: January 2020 Update from CEO Robert Peck." Harvard Business School Multimedia/Video Supplement 721-851, September 2020. (Link to Supplement.)
- August 2016
- Article
Asymmetric Effects of Favorable and Unfavorable Information on Decision-making Under Ambiguity
By: Alexander Peysakhovich and Uma R. Karmarkar
Most daily decisions involve uncertainty about outcome probabilities arising from incomplete knowledge, i.e., ambiguity. We explore how the addition of partial information affects these types of choices using theoretical and empirical methods. Our experiments in both... View Details
Keywords: Ambiguity; Decision Making; Outcomes; Information; Decision Choices and Conditions; Outcome or Result
Peysakhovich, Alexander, and Uma R. Karmarkar. "Asymmetric Effects of Favorable and Unfavorable Information on Decision-making Under Ambiguity." Management Science 62, no. 8 (August 2016).
- 28 Sep 2010
- First Look
First Look: September 28, 2010
Review (forthcoming) Abstract Companies in Victorian Britain operated in a laissez-faire legal environment from the perspective of outside investors, implying that such investors were not protected by the legal system. This article seeks... View Details
Keywords: Sean Silverthorne