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Show Results For
- All HBS Web
(405)
- News (82)
- Research (280)
- Multimedia (4)
- Faculty Publications (174)
- 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
- February 2018
- Article
Financial Disclosure and Market Transparency with Costly Information Processing
By: Marco Di Maggio and Marco Pagano
We study a model where some investors (“hedgers”) are bad at information processing, while others (“speculators”) have superior information-processing ability and trade purely to exploit it. The disclosure of financial information induces a trade externality: if... View Details
Keywords: Financial Disclosure; Information Processing; Liquidity; Market Transparency; Rational Inattention; Information; Financial Liquidity; Knowledge Use and Leverage; Corporate Disclosure; Financial Markets; Investment
Di Maggio, Marco, and Marco Pagano. "Financial Disclosure and Market Transparency with Costly Information Processing." Review of Finance 22, no. 1 (February 2018): 117–153.
- 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.
- 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.
- February 2010 (Revised December 2011)
- Case
Ricoh Company, Ltd.
By: Robert G. Eccles, Amy C. Edmondson, Marco Iansiti and Akiko Kanno
Ricoh, the Japanese copier manufacturer, is committed to reducing its environmental impact to one-eighth of its 2000 levels by 2050. It has already introduced three stages of environmental awareness to its operations, and its recycled copier business broke even in... View Details
Keywords: Environmental Accounting; Financial Reporting; Integrated Corporate Reporting; Investment; Operations; Corporate Social Responsibility and Impact; Environmental Sustainability; Electronics Industry; Manufacturing Industry; Japan
Eccles, Robert G., Amy C. Edmondson, Marco Iansiti, and Akiko Kanno. "Ricoh Company, Ltd." Harvard Business School Case 610-053, February 2010. (Revised December 2011.)
- 07 Aug 2007
- First Look
First Look: August 7, 2007
Authors:Marco Bertini and Luc Wathieu Periodical:Marketing Science (forthcoming) Abstract Existing evidence suggests that preferences are affected by whether a price is presented as one all-inclusive expense... View Details
Keywords: Martha Lagace
- 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
- 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.
- 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.
- 02 Jan 2020
- News
16 New Business Books You Need to Read in 2020
- 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.)
- July 2022
- Article
The Pass-Through of Uncertainty Shocks to Households
By: Marco Di Maggio, Amir Kermani, Rodney Ramcharan, Vincent Yao and Edison Yu
Using new employer-employee matched data, this paper investigates the impact of uncertainty, as measured by idiosyncratic stock market volatility, on individual outcomes. We find that firms provide at best partial insurance to their workers. An increase in firm-level... View Details
Keywords: Employment Risk; Consumption; Employment; Risk and Uncertainty; System Shocks; Insurance; Household; Spending
Di Maggio, Marco, Amir Kermani, Rodney Ramcharan, Vincent Yao, and Edison Yu. "The Pass-Through of Uncertainty Shocks to Households." Journal of Financial Economics 145, no. 1 (July 2022): 85–104. (2023 Fama-DFA Prize for the Best Paper Published in the Journal of Financial Economics in Asset Pricing, 2nd place.)
- 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.
- October 2021
- Article
Fintech Borrowers: Lax Screening or Cream-Skimming?
By: Marco Di Maggio and Vincent Yao
Personal credit is the fastest-growing segment of the consumer credit market, mainly driven by fintech lenders' staggering expansion. We study this market using a unique individual-level data, which covers most of the top fintech and traditional lenders, and provides... View Details
Keywords: Fintech; Lending; Consumer Finance; Credit History; Self-control; Present Bias; Financing and Loans; Personal Finance; Credit; Behavior
Di Maggio, Marco, and Vincent Yao. "Fintech Borrowers: Lax Screening or Cream-Skimming?" Review of Financial Studies 34, no. 10 (October 2021): 4565–4618. (LEAD ARTICLE and EDITOR'S CHOICE.)
- 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.
- 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.)
- January 2020
- Article
Gifts of the Immigrants, Woes of the Natives: Lessons from the Age of Mass Migration
By: Marco Tabellini
In this paper, I jointly investigate the political and the economic effects of immigration and study the causes of anti-immigrant sentiments. I exploit exogenous variation in European immigration to U.S. cities between 1910 and 1930 induced by World War I and the... View Details
Keywords: Political Backlash; Age Of Mass Migration; Cultural Diversity; Immigration; History; Economy; Attitudes; Cross-Cultural and Cross-Border Issues; Diversity
Tabellini, Marco. "Gifts of the Immigrants, Woes of the Natives: Lessons from the Age of Mass Migration." Review of Economic Studies 87, no. 1 (January 2020): 454–486. (Also Harvard Business School Working Paper, No. 19-005, July 2018. Available also from Cato Institute, Microeconomic Insights, VOX, Broadstreet, Cato Institute, and in Oxford University Press's Blog.)
- 12 Feb 2019
- First Look
New Research and Ideas, February 12, 2019
that hold back progress in resource mobilization research. We then propose a path ahead for future research guided by two overarching goals. First, we advocate for a process perspective, focusing attention on how an individual actor’s... View Details
Keywords: Dina Gerdeman