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Show Results For
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All HBS Web
(127)
- News (12)
- Research (112)
- Multimedia (1)
- Faculty Publications (85)
- April 2012 (Revised March 2014)
- Case
Social Strategy at Nike
By: Mikolaj Jan Piskorski and Ryan Johnson
Nike, which first started experimenting with social media and networking in 2004, has been consistently reducing its spending on traditional advertising. Yet, Nike has not pulled back on its overall marketing budget, instead opting to focus on "nontraditional"...
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Keywords:
Strategy;
Advertising Campaigns;
Social and Collaborative Networks;
Online Advertising;
Apparel and Accessories Industry;
Sports Industry
Piskorski, Mikolaj Jan, and Ryan Johnson. "Social Strategy at Nike." Harvard Business School Case 712-484, April 2012. (Revised March 2014.)
- 2013
- Working Paper
Separating Homophily and Peer Influence with Latent Space
By: Joseph P. Davin, Sunil Gupta and Mikolaj Jan Piskorski
We study the impact of peer behavior on the adoption of mobile apps in a social network. To identify social influence properly, we introduce latent space as an approach to control for latent homophily, the idea that "birds of a feather flock together." In a series of...
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Keywords:
Social Influence;
Social Network;
Mobile App;
Peer Effects;
Latent Homophily;
Latent Space;
Proxy Variables;
Familiarity;
Behavior;
Consumer Behavior;
Applications and Software;
Social and Collaborative Networks;
Mobile and Wireless Technology;
Power and Influence;
Social Media
Davin, Joseph P., Sunil Gupta, and Mikolaj Jan Piskorski. "Separating Homophily and Peer Influence with Latent Space." Harvard Business School Working Paper, No. 14-053, January 2014.
- March 2009 (Revised September 2013)
- Case
Yelp
By: Mikolaj Jan Piskorski, David Chen and Aaron Smith
Yelp was a popular online destination for reviews of local establishments, written by volunteer Internet users and read by 60 million people per month. However, the company was far from profitable. The CEO needs to decide between two options to increase the revenue....
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- September 2006 (Revised February 2007)
- Case
Friendster (A)
By: Mikolaj Jan Piskorski and Carin-Isabel Knoop
In January 2006, the president of Friendster needs to choose between two strategic options to revive the company. Friendster started the social networking industry in 2003, but has been overtaken by MySpace and Facebook. The two options are: 1) offer new features to...
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Keywords:
Value Creation;
Competitive Advantage;
Corporate Entrepreneurship;
Social and Collaborative Networks;
Brands and Branding;
Service Industry
Piskorski, Mikolaj Jan, and Carin-Isabel Knoop. "Friendster (A)." Harvard Business School Case 707-409, September 2006. (Revised February 2007.)
- 01 Sep 2013
- News
What's Trending at HBS?
slate begins September 25 with Bill Sahlman addressing "Entrepreneurial Solutions to the World's Problems." He will be followed by Professors John Deighton, Ben Edelman, and Mikolaj View Details
- Article
Power Imbalance, Mutual Dependence and Constraint Absorption: A Closer Look at Resource Dependence Theory
By: Tiziana Casciaro and Mikolaj Jan Piskorski
Despite ubiquitous references to Pfeffer and Salancik's classic volume, The External Control of Organizations, resource dependence theory is more of an appealing metaphor than a foundation for testable empirical research. We argue that several ambiguities in the...
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Casciaro, Tiziana, and Mikolaj Jan Piskorski. "Power Imbalance, Mutual Dependence and Constraint Absorption: A Closer Look at Resource Dependence Theory." Administrative Science Quarterly 50, no. 2 (June 2005): 167–199.
- 10 Aug 2010
- First Look
First Look: August 10
recipients' actual trustworthiness. This lax approach gives rise to adverse selection: the sites that seek and obtain trust certifications are actually less trustworthy than others. Using an original dataset on web site safety, I demonstrate that sites certified View Details
Keywords:
Martha Lagace
- 20 Sep 2011
- First Look
First Look: September 20
more likely to involve collaboration across locations, particularly with inventors from the firm's primary R&D site. Our results suggest that R&D dynamics in clusters are heavily influenced by multi-location firms with innovative...
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Keywords:
Sean Silverthorne
- 01 Nov 2011
- First Look
First Look: Nov. 1
repatriated earnings from foreign affiliates exceeded net capital investments by $1.1 trillion in 2010 dollars; and from 1950 to 2010, repatriated earnings and net interest from foreign affiliates exceeded net equity investments and loans...
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Keywords:
Sean Silverthorne
- 01 Dec 2009
- News
Faculty Research Online
of Social Networks Many business leaders are mystified about how to reach potential customers on social networks like Facebook. Associate Professor Mikolaj Piskorski provides a fresh look at the...
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- 01 Jun 2011
- News
Building a Social Network
the global economy. Based on a culture of mutual trust and support, YPOers form lifelong connections in the small, geographically based YPO Forums where they share successes and challenges (both business and personal) in complete confidentiality. A case View Details
Keywords:
Julia Hanna
- 01 Apr 2011
- News
My First HBS Class
classroom case discussions, the students were models of decorum and probity. I attended two different classes, a second- and a first-year course. I came completely unprepared to a popular second-year Strategy course called Competing with Social Networks, taught View Details
- January 2010 (Revised January 2014)
- Case
By: Mikolaj Jan Piskorski, David Chen, Bill Heil and Aaron Smith
Twitter is a micro-blogging company that allows users to send short text updates to others. The site is used by people, including celebrities, government officials, and businesses. It helps to raise money for non-profit organizations and provides first-responders with...
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Keywords:
Blogs;
Revenue;
Information Publishing;
Growth and Development Strategy;
Social and Collaborative Networks;
Web
Piskorski, Mikolaj Jan, David Chen, Bill Heil, and Aaron Smith. "Twitter." Harvard Business School Case 710-455, January 2010. (Revised January 2014.)
- 16 Sep 2009
- News
Facebook: 300 million people, checking out photos of women
- 20 Jul 2010
- First Look
First Look: July 20
Piskorski and David ChenHarvard Business School Case 710-408 Meetup, an online company providing means of arranging face-to-face meetings, is deciding between two options of increasing its revenue by...
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Keywords:
Martha Lagace
- 13 Jul 2010
- First Look
First Look: July 13
Review 88, nos. 7-8 (July-August 2010) An abstract is unavailable at this time. Read the Article: http://hbr.org/2010/07/are-you-ignoring-trends-that-could-shake-up-your-business/ar/1 Vision Statement: Mapping the Social Internet Authors:Mikołaj Jan View Details
Keywords:
Martha Lagace
- 13 Sep 2011
- First Look
First Look: September 13
Case of Search Platforms Authors:Hanna Hałaburda and Mikołaj Jan Piskorski Abstract We show that a two-sided platform can successfully compete by limiting the choice of potential matches it offers to its...
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Keywords:
Sean Silverthorne
- March 2013
- Module Note
Competing with Social Networks: Social Failures
By: Mikolaj Jan Piskorski
Piskorski, Mikolaj Jan. "Competing with Social Networks: Social Failures." Harvard Business School Module Note 713-497, March 2013.
- March 2013 (Revised March 2013)
- Course Overview Note
Competing with Social Networks: Overview
By: Mikolaj Jan Piskorski
Piskorski, Mikolaj Jan. "Competing with Social Networks: Overview." Harvard Business School Course Overview Note 713-500, March 2013. (Revised March 2013.)
- March 2013 (Revised March 2013)
- Module Note
Competing with Social Networks: Social Strategy
By: Mikolaj J. Piskorski
Piskorski, Mikolaj J. "Competing with Social Networks: Social Strategy." Harvard Business School Module Note 713-499, March 2013. (Revised March 2013.)