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  • 2014
  • Working Paper

The Cost of Friendship

By: Paul A. Gompers, Vladimir Mukharlyamov and Yuhai Xuan
We investigate how personal characteristics affect people's desire to collaborate and whether this attraction enhances or detracts from performance in venture capital. We find that venture capitalists who share the same ethnic, educational, or career background are... View Details
Keywords: Venture Capital; Partners and Partnerships; Decision Making; Identity
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    Communication (and Coordination?) in a Modern, Complex Organization

    This is a descriptive study of the structure of communications in a modern organization.  We analyze a dataset with millions of electronic mail messages, calendar meetings and teleconferences for many thousands of employees of a single, multidivisional firm during... View Details
    • June 2008
    • Article

    Bringing the Context Back In: Settings and the Search for Syndicate Partners in Venture Capital Investment Networks

    Most existing network-based theories of relationship formation, whether based on homophily or structural constraint, imply that actors form highly cohesive, homogenous clusters. Yet real networks also include many "bridging" ties—isolated links between parties that... View Details
    Keywords: Venture Capital; Networks; Theory; Partners and Partnerships; Investment; Risk and Uncertainty; Business Growth and Maturation; Size; Geographic Location
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    • 2012
    • Working Paper

    The Cost of Friendship

    By: Paul A. Gompers, Yuhai Xuan and Vladimir Mukharlyamov
    This paper explores two broad questions on collaboration between individuals. First, we investigate what personal characteristics affect people's desire to work together. Second, given the influence of these personal characteristics, we analyze whether this attraction... View Details
    Keywords: Partners and Partnerships; Investment; Performance; Personal Characteristics
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    • 2008
    • Working Paper

    Communication (and Coordination?) in a Modern, Complex Organization

    By: Adam M. Kleinbaum, Toby E. Stuart and Michael L. Tushman
    This is a descriptive study of the structure of communications in a modern organization. We analyze a dataset with millions of electronic mail messages, calendar meetings and teleconferences for many thousands of employees of a single, multidivisional firm during a... View Details
    Keywords: Business Conglomerates; Interpersonal Communication; Organizational Structure; Social Issues; Boundaries
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    • Research Summary

    Communication (and Coordination?) in a Modern, Complex Organization

    This is a descriptive study of the structure of communications in a modern organization. We analyze a dataset with millions of electronic mail messages, calendar meetings and teleconferences for many thousands of employees of a single, multidivisional firm during a... View Details
    • Research Summary

    Current working papers

    Organizational restructuring: the influence of formal and informal structure on tie formation. This paper considers how changes in formal structure and a key element of informal structure – the embeddedness of employee... View Details

    • November 2021
    • Article

    Ratings, Reviews, and the Marketing of New Products

    By: Itay P. Fainmesser, Dominique Olié Lauga and Elie Ofek
    We study how user-generated content (UGC) about new products impacts a firm's advertising and pricing decisions and the effect on profits and market dynamics. We construct a two-period model where consumers value quality and are heterogeneous in their taste for the new... View Details
    Keywords: Online Reviews; Product Ratings; Social Networks; Word Of Mouth; Pricing; User-generated Content; Advertising; Product Marketing; Price; Consumer Behavior; Product Positioning; Social Media
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    • 24 Apr 2014
    • News

    Creating a mathematical method to understand consumer behavior in a digital world

    influence by controlling for those “birds-of-a-feather” tendencies. The findings show that social influence accounts for more than 25 percent of all mobile app adoptions. The research also highlights an important risk: If homophily is not... View Details
    • 06 Jun 2017
    • First Look

    First Look at New Research and Ideas: June 6, 2017

    improved diversity. Download working paper: https://www.hbs.edu/faculty/Pages/item.aspx?num=52703 Homophily in Entrepreneurial Team Formation By: Gompers, Paul A., Kevin Huang, and Sophie Q. Wang Abstract—We study the role of View Details
    Keywords: Sean Silverthorne
    • 26 Jul 2016
    • First Look

    July 26, 2016

    behavior translates to truly macroscopic levels, and what its consequences may be, remains unknown. Here, we use call detail records (CDRs) to examine the population dynamics and manifestations of social and spatial homophily at a... View Details
    Keywords: Sean Silverthorne
    • 21 Jan 2014
    • First Look

    First Look: January 21

    mechanism that amplifies interest rate volatility. I find strong support for these predictions in the time series of U.S. government bond returns. Publisher's link: http://www.people.hbs.edu/shanson/MBS_Paper_20140104.pdf Working Papers Separating View Details
    Keywords: Sean Silverthorne
    • 10 Jan 2012
    • First Look

    First Look: January 10

    Constraints of Opportunity: Gender Homophily and Structure in a Formal Organization Authors:Adam M.Kleinbaum, Toby E. Stuart, and Michael L. Tushman Abstract Homophily in social relations is widely... View Details
    Keywords: Sean Silverthorne
    • 23 Jun 2014
    • Research & Ideas

    In Venture Capital, Birds of a Feather Lose Money Together

    company, the less likely it is that the company will succeed. "Much of the homophily literature in business research talks about the positive benefits of working with people who are similar to you—ease of communication, comfort level, and... View Details
    Keywords: by Carmen Nobel; Financial Services
    • 31 Jan 2017
    • First Look

    First Look at New Research: January 31, 2017

    also explore the correlation between diversity and state-level variations. Finally, we discuss how these patterns are consistent with homophily based hiring and homophily induced information flows about... View Details
    Keywords: Carmen Nobel
    • 15 Jan 2008
    • First Look

    First Look: January 15, 2008

    based on homophily or structural constraint, imply that actors form highly cohesive, homogenous clusters. Yet real networks also include many 'bridging' ties—isolated links between parties that vary on one or more social dimensions. To... View Details
    Keywords: Martha Lagace
    • 29 Jul 2008
    • First Look

    First Look: July 29, 2008

    social categories (gender, tenure within the firm). In dyad-level models of the probability that pairs of individuals communicate, we find very large effects of formal organization structure and spatial collocation on the rate of communication. View Details
    Keywords: Martha Lagace
    • 04 Dec 2012
    • First Look

    First Look: December 4

    Homophily and Structure in a Formal Organization Authors:Adam M. Kleinbaum, Toby E. Stuart, and Michael Tushman Publication:Organization Science Abstract Homophily in social relations results from both... View Details
    Keywords: Carmen Nobel
    • 16 Dec 2014
    • First Look

    First Look: December 16

    share the same ethnic, educational, or career background are more likely to syndicate with each other. This homophily reduces the probability of investment success, and the detrimental effect is most prominent for early-stage investments.... View Details
    Keywords: Sean Silverthorne
    • 07 Aug 2012
    • First Look

    First Look: August 7

    together. Second, given the influence of these personal characteristics, we analyze whether this attraction enhances or detracts from performance. Addressing these problems in the venture capital syndication setting, we show that venture capitalists exhibit strong... View Details
    Keywords: Sean Silverthorne