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(126)
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Show Results For
- All HBS Web
(126)
- News (12)
- Research (112)
- Multimedia (1)
- Faculty Publications (85)
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- October 2013 (Revised January 2014)
- Supplement
LinkedIn (C)
By: Mikolaj Jan Piskorski and Aaron Smith
Piskorski, Mikolaj Jan, and Aaron Smith. "LinkedIn (C)." Harvard Business School Supplement 714-414, October 2013. (Revised January 2014.)
- July – August 2010
- Article
Vision Statement: Mapping the Social Internet
By: Mikolaj Jan Piskorski and Tommy McCall
Fresh data on internet user behaviors around the globe show an East-West divide. View Details
Piskorski, Mikolaj Jan, and Tommy McCall. "Vision Statement: Mapping the Social Internet." Harvard Business Review 88, nos. 7-8 (July–August 2010).
- May 2013
- Supplement
Yammer (B)
By: Mikolaj J. Piskorski and Aaron Smith
Supplement to Yammer (A), case 712-494 View Details
Piskorski, Mikolaj J., and Aaron Smith. "Yammer (B)." Harvard Business School Supplement 713-483, May 2013.
- April 2012 (Revised March 2013)
- Case
Social Strategy at Harvard Business Review
By: Mikolaj Jan Piskorski and David Chen
The Harvard Business Review (HBR) Group was an early adopter of social media, boasting a robust presence on Twitter, Facebook, and LinkedIn. Now the company is seeking to evolve the Group's efforts from social media to social strategy—and start moving both revenue... View Details
Keywords: Competitive Advantage; Social and Collaborative Networks; Web; Publishing Industry; United States
Piskorski, Mikolaj Jan, and David Chen. "Social Strategy at Harvard Business Review." Harvard Business School Case 712-481, April 2012. (Revised March 2013.)
- April 2012 (Revised March 2013)
- Case
Social Strategy at American Express
By: Mikolaj Jan Piskorski and David Chen
American Express has developed a number of strategic partnerships with Facebook, Foursquare and Twitter to improve their card members experience and lower its customer acquisition cost. The case details the history of these partnerships, examines American Express' own... View Details
Piskorski, Mikolaj Jan, and David Chen. "Social Strategy at American Express." Harvard Business School Case 712-447, April 2012. (Revised March 2013.)
- 2013
- Working Paper
Testing Coleman's Social-Norm Enforcement Mechanism: Evidence from Wikipedia
By: Mikolaj J. Piskorski and Andreea Gorbatai
Since Durkheim, sociologists have believed that dense network structures lead to fewer norm violations. Coleman (1990) proposed one mechanism generating this relationship and argued that dense networks provide an opportunity structure to reward those who punish norm... View Details
Keywords: Governance Compliance; Governance Controls; Governing Rules, Regulations, and Reforms; Information Publishing; Social and Collaborative Networks; Social Issues; Societal Protocols
Piskorski, Mikolaj J., and Andreea Gorbatai. "Testing Coleman's Social-Norm Enforcement Mechanism: Evidence from Wikipedia." Harvard Business School Working Paper, No. 11-055, December 2010. (Revised September 2011, March 2013.)
- July 2008 (Revised January 2013)
- Teaching Note
eHarmony (TN)
By: Mikolaj Jan Piskorski and Hanna Halaburda
Teaching Note for eHarmony [709424]. View Details
- 2006
- Other Unpublished Work
Structural Closure and Exposure: Market Reactions to Announcements of Acquisitions and Divestitures
By: Mikolaj Jan Piskorski and Nitin Nohria
Piskorski, Mikolaj Jan, and Nitin Nohria. "Structural Closure and Exposure: Market Reactions to Announcements of Acquisitions and Divestitures." September 2006.
- 19 Jan 2011
- First Look
First Look: Jan. 18
Influence (Un)ethical Behavior Authors:F. Gino and Joshua D. Margolis Publication:Organizational Behavior and Human Decision Processes (forthcoming) Abstract In four laboratory studies, we find that regulatory focus induced by situational... View Details
Keywords: Sean Silverthorne
- February 2010 (Revised March 2013)
- Case
Zynga (A)
By: Mikolaj Jan Piskorski and David Chen
In January 2010 Mark Pincus is deciding how to double the number of Zynga games' players to 500 million without sacrificing profitability. These ambitious growth plans required changes to product, corporate strategy, and customer acquisition and retention. With regard... View Details
Keywords: Customer Focus and Relationships; Decision Choices and Conditions; Growth and Development Strategy; Distribution Channels; Product Development; Organizational Change and Adaptation; Corporate Strategy; Video Game Industry
Piskorski, Mikolaj Jan, and David Chen. "Zynga (A)." Harvard Business School Case 710-464, February 2010. (Revised March 2013.)
- Article
When Should a Platform Give People Fewer Choices and Charge More for Them?
By: Hanna Halaburda and Mikolaj Jan Piskorski
Keywords: Decision Choices and Conditions
Halaburda, Hanna, and Mikolaj Jan Piskorski. "When Should a Platform Give People Fewer Choices and Charge More for Them?" Antitrust Chronicle 7, no. 2 (Summer 2010).
- September 2006 (Revised February 2007)
- Supplement
Friendster (B)
By: Mikolaj Jan Piskorski and Carin-Isabel Knoop
Piskorski, Mikolaj Jan, and Carin-Isabel Knoop. "Friendster (B)." Harvard Business School Supplement 707-410, September 2006. (Revised February 2007.)
- 2003
- Other Unpublished Work
Sources of Structural Inequality in Managerial Labor Markets
By: Rakesh Khurana and Mikolaj J. Piskorski
- 2013
- Other Unpublished Work
Social Structure of Norm Enforcement: Evidence from Wikipedia
By: Mikolaj Jan Piskorski and Andreea Daniela Gorbatai
- February 2009 (Revised September 2013)
- Background Note
Your Social Network over Time
By: Mikolaj Jan Piskorski and Andreea Gorbatai
Piskorski, Mikolaj Jan, and Andreea Gorbatai. "Your Social Network over Time." Harvard Business School Background Note 709-476, February 2009. (Revised September 2013.)
- December 2006
- Article
When More Power Makes Actors Worse Off: Turning a Profit in the American Economy
By: Mikolaj Jan Piskorski and Tiziana Casciaro
Piskorski, Mikolaj Jan, and Tiziana Casciaro. "When More Power Makes Actors Worse Off: Turning a Profit in the American Economy." Social Forces 85, no. 2 (December 2006): 1011–1036.
- March 2013
- Teaching Note
Your Social Network Over Time (TN)
By: Mikolaj J. Piskorski and Andreea Gorbatai
- 2013
- Other Unpublished Work
Platforms and Limits to Network Effects
By: Mikolaj Jan Piskorski and Hanna Halaburda
Piskorski, Mikolaj Jan, and Hanna Halaburda. "Platforms and Limits to Network Effects." (Management Science, First Round Revise and Resubmit.)
- March 2011 (Revised March 2013)
- Supplement
mixi (B)
By: Mikolaj Jan Piskorski and Mayuka Yamazaki
Supplements case 709-413. View Details
Piskorski, Mikolaj Jan, and Mayuka Yamazaki. "mixi (B)." Harvard Business School Supplement 711-412, March 2011. (Revised March 2013.)