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- All HBS Web
(6)
- Research (5)
- Faculty Publications (2)
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- April 2021
- Article
Homing and Platform Responses to Entry: Historical Evidence from the U.S. Newspaper Industry
By: K. Francis Park, Robert Seamans and Feng Zhu
We examine how heterogeneity in customers’ tendencies to single-home or multi-home affects a platform’s competitive responses to new entrants in the market. We first develop a formal model to generate predictions about how a platform will respond. We then empirically... View Details
Keywords: Single-homing; Multi-homing; Platform Responses; Newpaper; Television; Digital Platforms; Market Entry and Exit; Newspapers; Television Entertainment; History; Journalism and News Industry; Media and Broadcasting Industry
Park, K. Francis, Robert Seamans, and Feng Zhu. "Homing and Platform Responses to Entry: Historical Evidence from the U.S. Newspaper Industry." Strategic Management Journal 42, no. 4 (April 2021): 684–709.
- 2013
- Working Paper
Competing Ad Auctions
By: Itai Ashlagi, Benjamin Edelman and Hoan Soo Lee
We present a two-stage model of competing ad auctions. Search engines attract users via Cournot-style competition. Meanwhile, each advertiser must pay a participation cost to use each ad platform, and advertiser entry strategies are derived using symmetric Bayes-Nash... View Details
Keywords: Online Advertising; Auctions; Market Participation; Market Platforms; Mathematical Methods; Competition
Ashlagi, Itai, Benjamin Edelman, and Hoan Soo Lee. "Competing Ad Auctions." Harvard Business School Working Paper, No. 10-055, January 2010. (Revised May 2010, February 2011, September 2013.)
- 08 Mar 2011
- First Look
First Look: March 8
empirical evidence that multi-homing advertisers are larger than single-homing advertisers. We then link our model to search engine market conditions: we derive comparative statics on consumer choice parameters, presenting relationships... View Details
Keywords: Sean Silverthorne
- 17 Oct 2017
- First Look
First Look at New Research and Ideas, October 17, 2017
newspapers respond to entry by TV broadcast stations in 1945–1963. We find that newspaper firms’ responses depend on their customers’ tendencies to multi-home (adopt both newspaper and TV) or single-home (adopt only newspaper or only TV).... View Details
Keywords: Sean Silverthorne
- 08 Oct 2013
- First Look
First Look: October 8
ad platform, and advertiser entry strategies are derived using symmetric Bayes-Nash equilibrium that lead to the VCG outcome of the ad auctions. Consistent with our model of participation costs, we find empirical evidence that multi-homing advertisers are larger than... View Details
Keywords: Sean Silverthorne