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- Article
Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches
By: Charles M.C. Lee, Paul Ma and Charles C.Y. Wang
Applying a "co-search" algorithm to Internet traffic at the SEC's EDGAR website, we develop a novel method for identifying economically-related peer firms and for measuring their relative importance. Our results show that firms appearing in chronologically adjacent... View Details
Keywords: Peer Firm; EDGAR Search Traffic; Revealed Preference; Co-search; Industry Classification; Perception; Internet and the Web; Investment
Lee, Charles M.C., Paul Ma, and Charles C.Y. Wang. "Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches." Journal of Financial Economics 116, no. 2 (May 2015): 410–431.
- 2014
- Working Paper
Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches
By: Charles M.C. Lee, Paul Ma and Charles C.Y. Wang
Applying a "co-search" algorithm to Internet traffic at the SEC's EDGAR web-site, we develop a novel method for identifying economically-related peer firms and for measuring their relative importance. Our results show that firms appearing in chronologically adjacent... View Details
Keywords: Peer Firm; EDGAR Search Traffic; Revealed Preference; Co-search; Industry Classification; Analytics and Data Science; Internet and the Web; Mathematical Methods; Corporate Finance
Lee, Charles M.C., Paul Ma, and Charles C.Y. Wang. "Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches." Harvard Business School Working Paper, No. 13-048, November 2012. (Revised September 2013, March 2014, June 2014, July 2014.)
- March 2014
- Article
Search Diversion and Platform Competition
By: Andrei Hagiu and Bruno Jullien
Platforms use search diversion in order to trade off total consumer traffic for higher revenues derived by exposing consumers to unsolicited products (e.g., advertising). We show that competition between platforms leads to lower equilibrium levels of search diversion... View Details
Keywords: Market Intermediation; Search; Two-Sided Markets; Platform Design; Platform Competition; Competition; Two-Sided Platforms
Hagiu, Andrei, and Bruno Jullien. "Search Diversion and Platform Competition." International Journal of Industrial Organization 33 (March 2014): 48–60.
- 2016
- Working Paper
The Search for Peer Firms: When Do Crowds Provide Wisdom?
By: Charles M.C. Lee, Paul Ma and Charles C.Y. Wang
In knowledge-based economies, many business enterprises defy traditional industry boundaries. In this study, we evaluate six "big data" approaches to peer firm identifications and show that some, but not all, "wisdom-of-crowd" techniques perform exceptionally well. We... View Details
Keywords: Peer Firm; EDGAR Co-search; Analyst Co-coverage; Wisdom Of Crowds; Performance Benchmarking; Crowd Of Crowds; Internet and the Web; Accounting
Lee, Charles M.C., Paul Ma, and Charles C.Y. Wang. "The Search for Peer Firms: When Do Crowds Provide Wisdom?" Harvard Business School Working Paper, No. 15-032, October 2014. (Revised November 2016.)
- 29 Apr 2013
- Working Paper Summaries
Exclusive Preferential Placement as Search Diversion: Evidence from Flight Search
- October 2020
- Article
IQ from IP: Simplifying Search in Portfolio Choice
By: Huaizhi Chen, Lauren Cohen, Umit Gurun, Dong Lou and Christopher J. Malloy
Using a novel database that tracks web traffic on the SEC’s EDGAR servers between 2004 and 2015, we show that mutual fund managers gather information on a very particular subset of firms and insiders, and their surveillance is very persistent over time. This tracking... View Details
Keywords: Tracked Trades; Return Predictability; Institutional Trading; Insider Trading; Institutional Investing; Information; Investment Portfolio; Decisions; Management
Chen, Huaizhi, Lauren Cohen, Umit Gurun, Dong Lou, and Christopher J. Malloy. "IQ from IP: Simplifying Search in Portfolio Choice." Journal of Financial Economics 138, no. 1 (October 2020): 118–137. (Winner of the First Prize, Crowell Memorial Award for Best Paper in Quantitative Investments, PanAgora Asset Management, 2019.)
- Article
Why Do Intermediaries Divert Search?
By: Andrei Hagiu and Bruno Jullien
We analyze the incentives to divert search for an information intermediary who enables buyers (consumers) to search affiliated sellers (stores). We identify two original motives for diverting search (i.e., inducing consumers to search more than they would like): 1)... View Details
Keywords: Market Intermediation; Search; Two-Sided Markets; Platform Design; Demand and Consumers; Motivation and Incentives; Internet and the Web; Digital Platforms; Distribution Channels; Business Strategy; Retail Industry
Hagiu, Andrei, and Bruno Jullien. "Why Do Intermediaries Divert Search?" RAND Journal of Economics 42, no. 2 (Summer 2011): 337–362. (2012 Winner for Best Paper on Competition Economics, Association of Competition Economics.)
- 2013
- Other Unpublished Work
Comments on Commitments in AT.39740 — Google
By: Benjamin Edelman and Zhenyu Lai
We evaluate Google's proposed Commitments in light of our research on the effects of Google Flight Search on traffic to competing online travel agencies. View Details
Keywords: Competition; Regulation; Google; Bias; Law; Internet; Search Technology; Technology Networks; European Union
Edelman, Benjamin, and Zhenyu Lai. "Comments on Commitments in AT.39740 — Google." May 2013. (Comments to European Commission - DG Comp.)
- 2007
- Working Paper
Why Do Intermediaries Divert Search?
By: Andrei Hagiu and Bruno Jullien
We analyze the incentives to divert search for an information intermediary who enables buyers (consumers) to search affiliated sellers (stores). We identify two original motives for diverting search (i.e. inducing consumers to search more than they would like): i)... View Details
Keywords: Demand and Consumers; Motivation and Incentives; Internet and the Web; Digital Platforms; Distribution Channels; Business Strategy; Retail Industry
Hagiu, Andrei, and Bruno Jullien. "Why Do Intermediaries Divert Search?" Harvard Business School Working Paper, No. 08-010, August 2007. (Revised February 2009, May 2010.)
- Article
Product Quality and Entering Through Tying: Experimental Evidence
By: Hyunjin Kim and Michael Luca
Dominant platform businesses often develop products in adjacent markets to complement their core business. One common approach used to gain traction in these adjacent markets has been to pursue a tying strategy. For example, Microsoft pre-installed Internet Explorer... View Details
Keywords: Tying; Platform Strategy; Google; Product; Quality; Digital Platforms; Strategy; Market Entry and Exit
Kim, Hyunjin, and Michael Luca. "Product Quality and Entering Through Tying: Experimental Evidence." Management Science 65, no. 2 (February 2019): 596–603.
- 2018
- Working Paper
Product Quality and Entering Through Tying: Experimental Evidence
Dominant platform businesses often develop products in adjacent markets to complement their core business. One common approach used to gain traction in these adjacent markets has been to pursue a tying strategy. For example, Microsoft pre-installed Internet Explorer... View Details
Keywords: Market Entry and Exit; Digital Platforms; Competitive Strategy; Product Marketing; Quality
Kim, Hyunjin, and Michael Luca. "Product Quality and Entering Through Tying: Experimental Evidence." Harvard Business School Working Paper, No. 19-045, October 2018. (Revised December 2018. Forthcoming in Management Science.)
- 18 Dec 2012
- First Look
First Look: December 18
before September 2012 to identify survey instruments used to measure teamwork and to assess their conceptual content, psychometric validity, and relationships to outcomes of interest. We searched the ISI Web of Knowledge database and... View Details
Keywords: Carmen Nobel
- 01 Mar 2023
- What Do You Think?
How Much Does 'Deep Purpose' Matter to the Bottom Line?
employees. Nikos Mourkogiannis cited four types of purpose that provide “sources of energy” for an organization: Heroism: The desire to change the world and society. Discovery: The challenge of adventure and innovation characterized by entrepreneurs willing to work... View Details
Keywords: by James Heskett
- 24 Oct 2023
- Research & Ideas
When Tech Platforms Identify Black-Owned Businesses, White Customers Buy
Luca, Abhay Aneja at the University of California-Berkeley, and Oren Reshef of Washington University in St. Louis, shows that making it easier to search for Black restaurant owners on Yelp substantially increased their demand, leading to... View Details
- 06 Oct 2020
- Sharpening Your Skills
18 Tips Managers Can Use to Lead Through COVID's Rising Waters
inappropriate ads promoting the brand’s “finger licking good” behavior, many brands quickly turned off existing creative and searched for new brand stories to tell that better reflected the new cultural environment. Consumers largely... View Details
Keywords: by Sean Silverthorne
- 08 Feb 2010
- HBS Case
Looking Behind Google’s Stand in China
Google, the "do no evil" company, gained entry into the Chinese search engine market last decade by agreeing to ban search results on topics deemed sensitive by the Chinese government. To Google's... View Details
- 15 Jul 2014
- First Look
First Look: July 15
"co-search" algorithm to Internet traffic at the SEC's EDGAR website, we develop a novel method for identifying economically-related peer firms and for measuring their relative importance. Our... View Details
Keywords: Carmen Nobel
- 17 Sep 2013
- First Look
First Look: September 17
transactions in the market for ideas. Download working paper: https://www.hbs.edu/faculty/Pages/download.aspx?name=14-019.pdf Crowdsourcing Peer Firms: Evidence from EDGAR Search View Details
Keywords: Sean Silverthorne
- 17 Sep 2007
- Research & Ideas
Broadband: Remaking the Advertising Industry
online ad budget is spent on search advertising, which is more effective than banner advertising at driving traffic. The ability to place your ad on the screen exactly where someone is searching for... View Details
- 12 Aug 2008
- Op-Ed
Google-Yahoo Ad Deal is Bad for Online Advertising
sponsored search advertising. Industry estimates indicate that Google earns dramatically higher fees for each search.5 By assigning substantial traffic to Google, Yahoo can increase its short-run revenues.6... View Details