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- All HBS Web
(3,290)
- People (1)
- News (906)
- Research (1,985)
- Events (7)
- Multimedia (36)
- Faculty Publications (953)
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- Article
Is a VC Partnership Greater Than the Sum of Its Partners?
By: Michael Ewens and Matthew Rhodes-Kropf
This paper investigates whether individual venture capitalists have repeatable investment skill and to what extent their skill is impacted by the VC firm where they work. We examine a unique dataset that tracks the performance of individual venture capitalists'... View Details
Ewens, Michael, and Matthew Rhodes-Kropf. "Is a VC Partnership Greater Than the Sum of Its Partners?" Journal of Finance 70, no. 3 (June 2015): 1081–1113.
- March 2007
- Article
Internet Advertising and the Generalized Second Price Auction: Selling Billions of Dollars Worth of Keywords
By: Benjamin Edelman, Michael Ostrovsky and Michael Schwarz
We investigate the "generalized second-price" auction (GSP), a new mechanism used by search engines to sell online advertising. Although GSP looks similar to the Vickrey-Clarke-Groves (VCG) mechanism, its properties are very different. Unlike the VCG mechanism, GSP... View Details
Edelman, Benjamin, Michael Ostrovsky, and Michael Schwarz. "Internet Advertising and the Generalized Second Price Auction: Selling Billions of Dollars Worth of Keywords." American Economic Review 97, no. 1 (March 2007): 242–259. (Winner of the 2013 Prize in Game Theory and Computer Science from the Game Theory Society - for "the best paper at the interface of game theory and computer science in the last decade." Winner of the 2018 SIGecom Test of Time Award from the ACM Special Interest Group on E-Commerce - for "an influential paper or series of papers published between ten and twenty-five years ago that has significantly impacted research or applications exemplifying the interplay of economics and computation.")
- 2008
- Working Paper
Variance-Seeking for Positive (and Variance-Aversion for Negative) Experiences: Risk-Seeking in the Domain of Gains?
By: Jolie Mae Martin, Gregory M. Barron and Michael I. Norton
In contrast to research which has conflated losses with negative experiences and gains with positive experiences, we argue that because reference points are set by memories of extremely good and bad experiences, most outcomes are seen as losses in positive domains and... View Details
Keywords: Change; Experience and Expertise; Marketing; Research; Risk and Uncertainty; Loss; Perspective
- 22 Jun 2010
- First Look
First Look: June 22
advertising market—one that suffers quite a different set of problems. Display advertising systems place ads-typically, rectangular "banners"—on the majority of popular web sites. Though display ads are widespread, they are also troubled—ignored View Details
Keywords: Martha Lagace
- 14 Mar 2017
- First Look
First Look at New Research, March 14
interest rates is driven by four state variables: the real interest rate, temporary and permanent components of expected inflation, the "nominal-real covariance" of inflation, and the real interest rate with the real economy. The last of... View Details
Keywords: Sean Silverthorne
- September 2006 (Revised October 2007)
- Supplement
BT Plc: The Broadband Revolution (B)
By: Michael L. Tushman, David Kiron and Adam M. Kleinbaum
In early 2003, CEO Ben Verwaayen and Chief Broadband Officer Alison Ritchie of BT Plc. are trying to transform the former British Telecom from a stodgy telephone company into a 21st century broadband company. Their efforts to focus the firm on broadband issues within... View Details
Keywords: Transformation; Innovation and Invention; Management Teams; Problems and Challenges; Telecommunications Industry; United Kingdom
Tushman, Michael L., David Kiron, and Adam M. Kleinbaum. "BT Plc: The Broadband Revolution (B)." Harvard Business School Supplement 407-002, September 2006. (Revised October 2007.)
- 02 Mar 2010
- First Look
First Look: March 2
legal change applied). These reductions in agency costs were followed by an increase in average leverage and a reduction in interest costs. Finally, we can estimate the welfare implications of agency costs, because firm values increased... View Details
Keywords: Martha Lagace
- 10 Oct 2007
- First Look
First Look: First Look: October 10
defeated by a less reformist coalition. Stock prices of government-controlled companies that had been slated for definite privatization by the BJP dropped by 3.5 percent... View Details
Keywords: Martha Lagace
- Article
Leadership Tips for Today to Stay in the Game Tomorrow: The Ambidextrous Leader
By: Michael Tushman
This article summarizes research by the author into why some organizations fail in the face of "punctuated change," while others are reborn, adapt and survive. The key, he finds, involves embracing paradox. Continuing to exploit current business success is a must, but... View Details
Tushman, Michael. "Leadership Tips for Today to Stay in the Game Tomorrow: The Ambidextrous Leader." IESE Insight, no. 23 (Fourth Quarter 2014): 31–38.
- February 2023 (Revised March 2024)
- Supplement
Shanty Real Estate: Teaching Note Supplement
By: Michael Luca and Jesse M. Shapiro
Shanty is a simulation in which students inhabit the role of either a traditional home buyer or an iBuyer, both bidding on the same condo. The traditional home buyer has access to a “comp sheet” of similar properties that have recently sold, and has done a walkthrough.... View Details
- August 2022 (Revised March 2023)
- Technical Note
Real Estate iBuying
By: Michael Luca, Jesse M. Shapiro and Julia Kelley
This note provides an overview of real estate iBuying, or instant buying, a business model that involves buying homes and then reselling them at a profit. Introduced in the mid-2010s, iBuying streamlined the process of selling a home by offering instant, all-cash... View Details
Luca, Michael, Jesse M. Shapiro, and Julia Kelley. "Real Estate iBuying." Harvard Business School Technical Note 923-001, August 2022. (Revised March 2023.)
- March 2013
- Article
The Client Is King: Do Mutual Fund Relationships Bias Analyst Recommendations?
By: Michael Firth, Chen Lin, Ping Liu and Yuhai Xuan
This paper investigates whether the business relations between mutual funds and brokerage firms influence sell-side analyst recommendations. Using a unique data set that discloses brokerage firms' commission income derived from each mutual fund client as well as the... View Details
Firth, Michael, Chen Lin, Ping Liu, and Yuhai Xuan. "The Client Is King: Do Mutual Fund Relationships Bias Analyst Recommendations?" Journal of Accounting Research 51, no. 1 (March 2013): 165–200.
- May 2020
- Article
Digitizing Disclosure: The Case of Restaurant Hygiene Scores
By: Weijia (Daisy) Dai and Michael Luca
Collaborating with Yelp and the city of San Francisco, we revisit a canonical example of quality disclosure by evaluating and helping to redesign the posting of restaurant hygiene scores on Yelp.com. We implement a two-stage intervention that separately identifies... View Details
Keywords: Corporate Disclosure; Consumer Behavior; Knowledge Dissemination; Food and Beverage Industry
Dai, Weijia (Daisy), and Michael Luca. "Digitizing Disclosure: The Case of Restaurant Hygiene Scores." American Economic Journal: Microeconomics 12, no. 2 (May 2020): 41–59.
- March 2015
- Case
The I-PASS Patient Handoff Program
By: Robert S. Huckman and Michael Norris
In 2015, the I-PASS Patient Handoff Program Team, led by six pediatricians around the U.S., had to determine the best way to disseminate their program that had been proven to reduce communication errors in patient handoffs in hospital settings. Should they turn it into... View Details
Keywords: Health Care; Hospitals; Operations Improvement; Entrepreneurship; Health Care and Treatment; Health Industry; United States
Huckman, Robert S., and Michael Norris. "The I-PASS Patient Handoff Program." Harvard Business School Case 615-069, March 2015.
- 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.
- 2013
- Working Paper
Is a VC Partnership Greater Than the Sum of Its Partners?
By: Michael Ewens and Matthew Rhodes-Kropf
This paper investigates whether individual venture capitalists have repeatable investment skill and to what extent their skill is impacted by the VC firm where they work. We examine a unique dataset that tracks the performance of individual venture capitalists'... View Details
Keywords: Investing; Persistence; Performance Persistence; Theory Of The Firm; Venture Capital; Organizations; Human Capital; Performance Evaluation
Ewens, Michael, and Matthew Rhodes-Kropf. "Is a VC Partnership Greater Than the Sum of Its Partners?" Harvard Business School Working Paper, No. 12-097, April 2012. (Revised January 2013, June 2013. Revise and Resubmit Journal of Finance. NBER Working Paper Series, No. 19120, June 2013)
- September 2006 (Revised November 2007)
- Case
Patrimonio Hoy: A Financial Perspective
By: Arthur I Segel, Michael Chu and Gustavo A. Herrero
Patrimonio Hoy, a program targeting the housing needs of low-income families launched by CEMEX, a major Mexican corporation and a leading global cement company, has gone from a market research project to a highly visible initiative in 22 cities and has earned public... View Details
Keywords: Diversification; Housing; Income; Corporate Social Responsibility and Impact; Emerging Markets; Finance; Mexico
Segel, Arthur I., Michael Chu, and Gustavo A. Herrero. "Patrimonio Hoy: A Financial Perspective." Harvard Business School Case 207-059, September 2006. (Revised November 2007.)
- 04 Jun 2013
- First Look
First Look: June 4
Emotional Benefits of Prosocial Spending By: Aknin, Lara B., Elizabeth W. Dunn, Ashley V. Whillans, Adam M. Grant, and Michael I. Norton Abstract—When does giving lead to happiness? Here, we present two studies demonstrating that the... View Details
Keywords: Sean Silverthorne
- July 2014
- Article
Convergence of Position Auctions under Myopic Best-Response Dynamics
By: Matthew Cary, Aparna Das, Benjamin Edelman, Ioannis Giotis, Kurtis Heimerl, Anna Karlin, Scott Duke Kominers, Claire Mathieu and Michael Schwarz
We study the dynamics of multi-round position auctions, considering both the case of exogenous click-through rates and the case in which click-through rates are determined by an endogenous consumer search process. In both contexts, we demonstrate that the dynamic... View Details
Keywords: Sponsored Search; Advertising; Google; Equilibrium Selection; Online Advertising; Advertising Industry
Cary, Matthew, Aparna Das, Benjamin Edelman, Ioannis Giotis, Kurtis Heimerl, Anna Karlin, Scott Duke Kominers, Claire Mathieu, and Michael Schwarz. "Convergence of Position Auctions under Myopic Best-Response Dynamics." ACM Transactions on Economics and Computation 2, no. 3 (July 2014): 1–20.
- Article
Stability and Competitive Equilibrium in Trading Networks
By: John William Hatfield, Scott Duke Kominers, Alexandru Nichifor, Michael Ostrovsky and Alexander Westkamp
We introduce a model in which agents in a network can trade via bilateral contracts. We find that when continuous transfers are allowed and utilities are quasi-linear, the full substitutability of preferences is sufficient to guarantee the existence of stable outcomes... View Details
Hatfield, John William, Scott Duke Kominers, Alexandru Nichifor, Michael Ostrovsky, and Alexander Westkamp. "Stability and Competitive Equilibrium in Trading Networks." Journal of Political Economy 121, no. 5 (October 2013): 966–1001.