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- All HBS Web
(464)
- News (155)
- Research (243)
- Multimedia (8)
- Faculty Publications (155)
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- 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
- 2024
- Working Paper
What Triggers National Stock Market Jumps?
By: Scott R. Baker, Nicholas Bloom, Steven J. Davis and Marco Sammon
We examine newspapers the day after major stock-market jumps to evaluate the proximate cause, geographic source, and clarity of these events from 1900 in the US, 1930 in the UK and 1980 in 12 other countries. We find four main results. First, the United States plays an... View Details
Keywords: Uncertainty; Policy Uncertainty; Stock Market; Financial Markets; Volatility; Risk and Uncertainty; Policy; Newspapers
Baker, Scott R., Nicholas Bloom, Steven J. Davis, and Marco Sammon. "What Triggers National Stock Market Jumps?" Working Paper, December 2024.
- 2007
- Working Paper
Dynamics of Platform Competition: Exploring the Role of Installed Base, Platform Quality and Consumer Expectations
By: Feng Zhu and Marco Iansiti
This paper seeks to answer three questions. First, which drives the success of a platform, installed base, platform quality or consumer expectations? Second, when does a monopoly emerge in a platform-based market? Finally, when is a platform-based market socially... View Details
Keywords: Price; Network Effects; Digital Platforms; Monopoly; Quality; Competitive Advantage; Digital Platforms
Zhu, Feng, and Marco Iansiti. "Dynamics of Platform Competition: Exploring the Role of Installed Base, Platform Quality and Consumer Expectations." Harvard Business School Working Paper, No. 08-031, November 2007.
- 22 Mar 2011
- First Look
First Look: March 22
and overly restricting access to credit and consumer choice. Nicolas Retsinas, Eric Belsky, and their colleagues aim to stimulate debate based on analysis of the opportunities and challenges presented by the various components of global... View Details
Keywords: Sean Silverthorne
- November 2020 (Revised September 2021)
- Case
HP Instant Ink: (Self) Disrupting the Consumer Printing Market
By: Elie Ofek, Marco Bertini, Oded Koenigsberg and George Gonzalez
Seeking to disrupt the consumer printing market (before being disrupted by others), and in response to customer pain points, in 2013 HP Inc. launched an ink replenishment service called Instant Ink, where customers pay a monthly subscription fee based on the number of... View Details
Keywords: Printing; Ink; Subscription Model; Customers; Information Infrastructure; Service Delivery; Business Model; Disruption; Growth and Development Strategy
Ofek, Elie, Marco Bertini, Oded Koenigsberg, and George Gonzalez. "HP Instant Ink: (Self) Disrupting the Consumer Printing Market." Harvard Business School Case 521-016, November 2020. (Revised September 2021.)
- January 2021
- Supplement
A Half-Deal
By: Marco Di Maggio, Pedro Levindo and Carla Larangeira
In June 2020, XP and Itaú faced intensified competition and tension in their partnership, with the latter owning a minority stake at XP. Two years earlier, in May 2017, Itaú had announced it would acquire 49.9% of XP for $1.8 billion, followed by three additional... View Details
Keywords: Fintech; Financing Strategy; Competition; Partners and Partnerships; Financing and Loans; Strategy; Latin America; Brazil
Di Maggio, Marco, Pedro Levindo, and Carla Larangeira. "A Half-Deal." Harvard Business School Supplement 221-058, January 2021.
- 28 Feb 2012
- First Look
First Look: Feb. 28
reforms, we find that an increase in female representation in local government induces a large and significant rise in documented crimes against women in India. Our evidence suggests that this increase is good news, driven primarily by... View Details
Keywords: Sean Silverthorne
- 2021
- Working Paper
Issue Salience and Political Stereotypes
By: Pedro Bordalo, Marco Tabellini and David Yang
U.S. voters exaggerate the differences in attitudes held by Republicans and Democrats on a range of socioeconomic and political issues, and higher perceived polarization is associated with greater political engagement and affective polarization. In this paper, we... View Details
- Article
The Value of Trading Relations in Turbulent Times
By: Marco Di Maggio, Amir Kermani and Zhaogang Song
This paper investigates how dealers’ trading relations shape their trading behavior in the corporate bond market. Dealers charge lower spreads to dealers with whom they have the strongest ties and more so during periods of market turmoil. Systemically important dealers... View Details
Keywords: OTC Markets; Network; Corporate Bonds; Crisis; Intermediation Chains; Leaning Against The Wind; Networks; Bonds; Behavior; Financial Crisis
Di Maggio, Marco, Amir Kermani, and Zhaogang Song. "The Value of Trading Relations in Turbulent Times." Journal of Financial Economics 124, no. 2 (May 2017): 266–284.
- Article
Entry into Platform-based Markets
By: Feng Zhu and Marco Iansiti
This paper examines the relative importance of platform quality, indirect network effects, and consumer expectations on the success of entrants in platform-based markets. We develop a theoretical model and find that an entrant's success depends on the strength of... View Details
Keywords: Platform-based Markets; Winnter-take-all; First-mover Advantage; Indirect Network Effects; Video Game Industry; Quality; Network Effects; Market Entry and Exit; Digital Platforms; Motion Pictures and Video Industry
Zhu, Feng, and Marco Iansiti. "Entry into Platform-based Markets." Strategic Management Journal 33, no. 1 (January 2012): 88–106.
- 13 Apr 2010
- First Look
First Look: April 13
by deviating frequently and in predictable ways from the recommendations offered by a centralized capacity planning model. Finally, we document that these discretionary capacity supply decisions exhibit a... View Details
Keywords: Martha Lagace
- 2021
- Working Paper
Time and the Value of Data
By: Ehsan Valavi, Joel Hestness, Newsha Ardalani and Marco Iansiti
Managers often believe that collecting more data will continually improve the accuracy of their machine learning models. However, we argue in this paper that when data lose relevance over time, it may be optimal to collect a limited amount of recent data instead of... View Details
Keywords: Economics Of AI; Machine Learning; Non-stationarity; Perishability; Value Depreciation; Analytics and Data Science; Value
Valavi, Ehsan, Joel Hestness, Newsha Ardalani, and Marco Iansiti. "Time and the Value of Data." Harvard Business School Working Paper, No. 21-016, August 2020. (Revised November 2021.)
- October 1996 (Revised April 1997)
- Case
Team New Zealand (A)
By: Marco Iansiti and Alan D. MacCormack
The case describes the development process used by Team New Zealand to design their two yachts for the 1995 America's Cup. During development, the team makes extensive use of simulation and physical prototyping to improve the initial design concept. As they approach... View Details
Keywords: Product Design; Design; Product Development; Sports; Ship Transportation; Research and Development; Situation or Environment; Decisions; Sports Industry; New Zealand
Iansiti, Marco, and Alan D. MacCormack. "Team New Zealand (A)." Harvard Business School Case 697-040, October 1996. (Revised April 1997.)
- November 2022
- Article
Hate Crime Towards Minoritized Groups Increases as They Increase in Sized-Based Rank
By: Mina Cikara, Vasiliki Fouka and Marco Tabellini
People are on the move in unprecedented numbers within and between countries. How does demographic change affect local intergroup dynamics? In complement to accounts that emphasize stereotypical features of groups as determinants of their treatment, we propose the... View Details
Keywords: Prejudice; Minority; Hate Crimes; Reference Dependence; Prejudice and Bias; Attitudes; Demographics
Cikara, Mina, Vasiliki Fouka, and Marco Tabellini. "Hate Crime Towards Minoritized Groups Increases as They Increase in Sized-Based Rank." Nature Human Behaviour 6, no. 11 (November 2022): 1537–1544. (Pre-Published online August 8, 2022, Featured in HBS Working Knowledge and ABC News.)
- 12 Feb 2019
- First Look
New Research and Ideas, February 12, 2019
https://www.hbs.edu/faculty/Pages/item.aspx?num=55160 From Immigrants to Americans: Race and Assimilation During the Great Migration By: Fouka, Vasiliki, Soumyajit Mazumder, and Marco Tabellini Abstract— How... View Details
Keywords: Dina Gerdeman
- 2022
- Working Paper
Retail Investors’ Contrarian Behavior Around News, Attention, and the Momentum Effect
By: Cheng (Patrick) Luo, Enrichetta Ravina, Marco Sammon and Luis M. Viceira
Using a large panel of U.S. brokerage accounts trades and positions, we show that a large fraction of retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and that such contrarian trading contributes to post earnings... View Details
Keywords: Retail Investors; Post Earnings Announcement Drift; Price Momentum; Behavioral Finance; Investment; Demographics
Luo, Cheng (Patrick), Enrichetta Ravina, Marco Sammon, and Luis M. Viceira. "Retail Investors’ Contrarian Behavior Around News, Attention, and the Momentum Effect." Working Paper, June 2022.
- Working Paper
Index Rebalancing and Stock Market Composition: Do Indexes Time the Market?
By: Marco Sammon and John J. Shim
Value-weighted indexes must rebalance in response to stock market composition changes, e.g., issuance, buybacks, and IPOs. In doing so, existing index funds implicitly engage in market timing. Index funds’ long-short rebalancing portfolios have a -3.5% annual return... View Details
Sammon, Marco, and John J. Shim. "Index Rebalancing and Stock Market Composition: Do Indexes Time the Market?" SSRN Working Paper Series, No. 5080459, May 2025.
- Article
The Unintended Consequences of the Zero Lower Bound Policy
By: Marco Di Maggio and Marcin Kacperczyk
We study the impact of the zero lower bound interest rate policy on the industrial organization of the U.S. money fund industry. We find that in response to policies that maintain low interest rates, money funds change their product offerings by investing in riskier... View Details
Keywords: Quantitative Easing; Money Market Funds; Reaching For Yield; Risk Taking; Fund Exit; Unconventional Monetary Policy; Investment Funds; Interest Rates
Di Maggio, Marco, and Marcin Kacperczyk. "The Unintended Consequences of the Zero Lower Bound Policy." Journal of Financial Economics 123, no. 1 (January 2017): 59–80.
- 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
- Article
The Future of Economic, Business, and Social History
By: G. Jones, Marco H.D. van Leeuwen and Stephen Broadberry
Three leading scholars in the fields of business, economic, and social history review the current state of these disciplines and reflect on their future trajectory. Geoffrey Jones reviews the development of business history since its birth at the Harvard Business... View Details
Keywords: Economic History; Business History; History; Asia; Africa; Europe; Latin America; North and Central America
Jones, G., Marco H.D. van Leeuwen, and Stephen Broadberry. "The Future of Economic, Business, and Social History." Scandinavian Economic History Review 60, no. 3 (2012): 225–253.