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(515)
- News (110)
- Research (352)
- Multimedia (9)
- Faculty Publications (248)
Show Results For
- All HBS Web
(515)
- News (110)
- Research (352)
- Multimedia (9)
- Faculty Publications (248)
- Article
The Value of Intermediation in the Stock Market
By: Marco Di Maggio, Mark Egan and Francesco Franzoni
We estimate a structural model of broker choice to quantitatively decompose the value that institutional investors attach to broker services. Studying over 300 million institutional equity trades, we find that investors are sensitive to both explicit and implicit... View Details
Keywords: Financial Intermediation; Institutional Investors; Research Analysts; Broker Networks; Equity Trading; Institutional Investing
Di Maggio, Marco, Mark Egan, and Francesco Franzoni. "The Value of Intermediation in the Stock Market." Journal of Financial Economics 145, no. 2A (August 2022): 208–233.
- September 2015
- Case
Deflategate and the National Football League
By: Marco Iansiti and Christine Snively
On January 18, 2015, the New England Patriots faced the Indianapolis Colts in the AFC Championship game. In the second quarter, a Colts player intercepted a pass from Patriots quarterback Tom Brady. Colts equipment personnel alerted NFL officials that the ball's air... View Details
Keywords: ＂Deflategate＂; Analytics; National Football League; NFLPA; Roger Goodell; Tom Brady; Operations; United States
Iansiti, Marco, and Christine Snively. "Deflategate and the National Football League." Harvard Business School Case 616-008, September 2015.
- 11 Dec 2020
- News
The debate over Joe Biden canceling student debt, explained
- 2023
- Working Paper
Do Active Funds Do Better in What They Trade?
By: Marco Sammon and John J. Shim
We develop two new, simple measures to quantify active fund decisions at the individual position level. The intuition is to separate passive rebalancing induced by flows and position changes from active rebalancing decisions. We find that additive active rebalancing --... View Details
Sammon, Marco, and John J. Shim. "Do Active Funds Do Better in What They Trade?" Working Paper, November 2023.
- 2018
- Working Paper
Black Out-Migration and Southern Political Realignment
By: Leah Boustan and Marco Tabellini
Can emigration from less democratic and economically less developed areas induce political and economic change? We study this question in the context of the second Great Migration of African Americans (1940–1970), when more than 4 million blacks left the U.S. South and... View Details
- Article
The Information Technology Ecosystem: Structure, Health, and Performance
By: Marco Iansiti and Gregory L. Richards
A number of modern industries are organized as complex networks of firms whose integrated efforts are necessary to deliver value to end customers. The complexity of these networks, or business ecosystems, and the associated interdependencies among firms, make... View Details
Keywords: Business Ventures; Networks; Value; Customers; Performance Productivity; Product; Applications and Software; Innovation and Invention; Competition; Business Model; Information Infrastructure; Information Technology Industry
Iansiti, Marco, and Gregory L. Richards. "The Information Technology Ecosystem: Structure, Health, and Performance." Antitrust Bulletin 51, no. 1 (Spring 2006).
- 2025
- Working Paper
Extractive Taxation and the French Revolution
By: Tommaso Giommoni, Gabriel Loumeau and Marco Tabellini
We study the fiscal determinants of the French Revolution, exploiting plausibly exogenous variation in the salt tax—a large source of royal revenues and one of the most extractive forms of taxation of the Ancien Régime. Implementing a Regression Discontinuity... View Details
Keywords: Extractive Taxation; Regime Change; French Revolution; State Capacity; Taxation; History; Government Administration; Attitudes; Public Opinion
Giommoni, Tommaso, Gabriel Loumeau, and Marco Tabellini. "Extractive Taxation and the French Revolution." Harvard Business School Working Paper, No. 25-047, April 2025. (Featured at VoxEU and HBS Working Knowledge.)
- 06 Mar 2012
- First Look
First Look: March 6
3.8% of GDP (the Congressional Budget Office's most likely scenario) to just over 1%. Read the article: http://hbr.org/2012/03/macroeconomic-policy-and-us-competitiveness/ar/1 Entry into Platform-based Markets Author:Feng Zhu and Marco... View Details
Keywords: Sean Silverthorne
- 2014
- Article
Children Develop a Veil of Fairness
By: Alex Shaw, Natalia Montinari, Marco Piovesan, Kristina Olson, Francesca Gino and Michael I. Norton
Previous research suggests that children develop an increasing concern with fairness over the course of development. Research with adults suggests that the concern with fairness has at least two distinct components: a desire to be fair and a desire to signal to others... View Details
Keywords: Inequity Aversion; Social Signaling; Social Cognitive Development; Communication Intention and Meaning; Fairness; Age; Reputation; Growth and Development; Cognition and Thinking
Shaw, Alex, Natalia Montinari, Marco Piovesan, Kristina Olson, Francesca Gino, and Michael I. Norton. "Children Develop a Veil of Fairness." Journal of Experimental Psychology: General 143, no. 1 (February 2014): 363–375.
- Fall, 2024
- Article
Sixty Years of the Voting Rights Act: Progress and Pitfalls
By: Andrea Bernini, Giovanni Facchini, Marco Tabellini and Cecilia Testa
We review the literature on the effects of the 1965 Voting Rights Act (VRA), which removed formal restrictions to Black political participation. After a brief description of racial discrimination suffered by Black Americans since Reconstruction, we introduce the goals... View Details
Keywords: Prejudice and Bias; Equality and Inequality; Race; Political Elections; Voting; Policy; Outcome or Result; Government Legislation
Bernini, Andrea, Giovanni Facchini, Marco Tabellini, and Cecilia Testa. "Sixty Years of the Voting Rights Act: Progress and Pitfalls." Oxford Review of Economic Policy 40, no. 3 (Fall, 2024): 486–497.
- June 2025
- Article
Passive Ownership and Price Informativeness
By: Marco Sammon
I show that passive ownership negatively affects the degree to which stock prices anticipate earnings announcements. Estimates across several research designs imply that the rise in passive ownership over the last 30 years has caused the amount of information... View Details
Keywords: Passive Ownership; ETFs; Market Efficiency; Price; Investment Funds; Stocks; Communication
Sammon, Marco. "Passive Ownership and Price Informativeness." Management Science 71, no. 6 (June 2025): 4582–4598.
- December 2020
- Case
XP: Dual Track Financing Alternatives
By: Marco Di Maggio, Pedro Levindo and Carla Larangeira
XP, an investment platform, was on the verge of defining whether to do an IPO or selling off a majority stake to Itaú Unibanco, Brazil´s largest financial conglomerate. Under the leadership of Guilherme Benchimol, XP´s co-founder and CEO, XP had risen to become the... View Details
Di Maggio, Marco, Pedro Levindo, and Carla Larangeira. "XP: Dual Track Financing Alternatives." Harvard Business School Case 221-029, December 2020.
- August 2021
- Case
Orchadio's First Two Split Experiments
By: Iavor I. Bojinov, Marco Iansiti and David Lane
Orchadio, a direct-to-consumer grocery business, needs to conduct its first two A/B tests—one to evaluate the effectiveness and functioning of its newly redesigned website, and one to market-test four versions of a new banner for the website. To do so, it will rely on... View Details
Keywords: Information Management; Technological Innovation; Knowledge Use and Leverage; Resource Allocation; Marketing; Measurement and Metrics; Customization and Personalization; Information Technology; Internet and the Web; Digital Platforms; Information Technology Industry; Food and Beverage Industry
Bojinov, Iavor I., Marco Iansiti, and David Lane. "Orchadio's First Two Split Experiments." Harvard Business School Case 622-015, August 2021.
- 2023
- Working Paper
Data Governance, Interoperability and Standardization: Organizational Adaptation to Privacy Regulation
By: Sam (Ruiqing) Cao and Marco Iansiti
The increasing availability of data can afford dynamic competitive advantages among data-intensive
corporations, but governance bottlenecks hinder data-driven value creation and increase regulatory risks.
We analyze the role of two technological features of data... View Details
Keywords: Organizations; Information Technology; Performance Productivity; Growth and Development; Transformation
Cao, Sam (Ruiqing), and Marco Iansiti. "Data Governance, Interoperability and Standardization: Organizational Adaptation to Privacy Regulation." Harvard Business School Working Paper, No. 21-122, May 2021. (Revised November 2023.)
- 2011
- Working Paper
Do Not Trash the Incentive! Monetary Incentives and Waste Sorting
By: Alessandro Bucciol, Natalia Montinari and Marco Piovesan
This paper examines whether monetary incentives are an effective tool for increasing domestic waste sorting. We exploit the exogenous variation in the pricing systems experienced during the 1999-2008 decade by the 95 municipalities in the district of Treviso (Italy).... View Details
Keywords: Household; Cost Management; Consumer Behavior; Wastes and Waste Processing; Motivation and Incentives; Public Administration Industry; Italy
Bucciol, Alessandro, Natalia Montinari, and Marco Piovesan. "Do Not Trash the Incentive! Monetary Incentives and Waste Sorting." Harvard Business School Working Paper, No. 11-093, March 2011.
- 12 Feb 2020
- Blog Post
Trying Out New Career Options with SIPs (Short Intensive Programs)
that as a philanthropist, impact investor, board member, employee or corporate partner. Fintech: Disruptions in Credit, Payments and Real Estate Faculty: Marco Di Maggio The advent of new technologies and big data promise to... View Details
- 5 Nov 2005 - 8 Nov 2005
- Conference Presentation
New Perspectives on the Business Value of IT
By: David James Brunner, Bradley R. Staats and Marco Iansiti
We sought to unravel the link between IT investment and firm performance by examining deployed IT functionality (ITF). First, ITF appears to be an important link in the IT spend to business value chain. Second, ITF does not seem to be a commodity and has... View Details
- 21 Dec 2010
- First Look
First Look: December 21
article reviews recent research conducted by the authors that finds that intellectual property rights reform increases technology transfers, foreign direct investment inflows, and industrial development. It also places the findings of... View Details