papers - op-eds - press - interviews - speaking - brief bio - directions

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This is my makeshift personal homepage at NYU Stern while I update my web site.

Here is the web site you might have been looking for, which is out of date, but still has my pages on network effects, startups and calculus.

Here's where I am on the NYU Stern site, on Twitter, on Facebook, and on LinkedIn.

Congressional testimony on peer-to-peer business and the sharing economy, 01/15/2014

Selected recent scientific papers (back to top)

  • Prediction in Economic Networks. Information Systems Research (2014)
  • Dynamic Pricing of Network Goods with Boundedly Rational Consumers. PNAS (2014)
  • Digital Access, Political Networks and the Diffusion of Democracy. Social Networks (2014) Editors' Choice, Science
  • Information in Digital, Economic and Social Networks. Information Systems Research (2013)
  • Engineering Social Contagions: Optimal Network Seeding in the Presence of Homophily. Network Science (2013)
  • The Visible Hand? Demand Effects of Recommendation Networks in Electronic Markets. Management Science (2012)
  • Recommendation Networks and the Long Tail of Electronic Commerce. MIS Quarterly (2012)
  • Pricing Digital Goods: Discontinuous Costs and Shared Infrastructures. Information Systems Research (2011)

    Popular older papers
  • Distinguishing Influence Based Contagion from Homophily Driven Diffusion in Dynamic Networks. PNAS (2009)
  • Optimal Design of Crowdsourcing Contests. ICIS (2009)
  • Opinion Mining Using Econometrics: A Case Study on Reputation Systems. ACL (2007)
  • Local Network Effects and Complex Network Structure. BE Journal of Theoretical Economics (2007)
  • Information Technologies in Business: A Blueprint for Education and Research. Information Systems Research (2007)
  • Evaluating Pricing Strategy Using E-Commerce Data. Statistical Science (2006)
  • Nonlinear Pricing of Information Goods. Management Science (2004)
  • Managing Digital Piracy: Pricing and Protection. Information Systems Research (2004)


  • Selected recent op-eds (back to top)

  • Les nouvelles institutions economiques du XXIe siecle. Le Monde, July 2014. full text
  • Time to Adapt to a New Economy. The New York Times, May 2014.
  • Trusting the Sharing Economy to Regulate Itself. The New York Times, March 2014.
  • With Graph Search, Its Facebook vs Facebook. Wired, March 2013
  • More Problems Ahead for Apple. CNBC, January 2013
  • From Zipcar to the Sharing Economy. Harvard Business Review, January 2013
  • Digital Social Visibility: How Facebook Gifts Change Our Choices. Wired, December 2012
  • All hail next-wave taxicab apps. NY Daily News, December 2012
  • Why the Government Doesn't Need to Regulate the Sharing Economy. Wired, October 2012
  • How Facebook Can Still Rule the Internet Economy. Bloomberg, September 2012


  • Selected recent interviews/profiles (back to top)

    Television and broadcast (video)

  • Get a Room! How Airbnb is Changing the Hotel Industry. Bloomberg TV, August 2014.
  • Sundararajan on the sharing economy's long-term strategy. Reuters, August 2014.
  • Lyft Hits Roadblock: Is NYC Making the Right Call? Bloomberg TV, July 2014.
  • Technology Creates the "Sharing Economy". PBS, May 2014.
  • Is More Regulation of Airbnb Necessary?. Fox Business, May 2014.
  • Sharing Economy Makes Strange Political Bedfellows. Huffington Post Live, May 2014.
  • Average Joe Entrepreneurship and the Sharing Economy. Al Jazeera, April 2014.
  • Mt.Gox's Bitcoin security breach isolated: NYU's Sundararajan. Reuters , February 2014
  • Balancing Innovation and Regulation in the Sharing Economy. TechCrunch, December 2012.
  • Blackouts could hurt India's economy. CNN, August 2012.



    Radio (audio)

  • Business Matters. BBC World Service, August 2014.
  • The Diane Rehm Show National Public Radio, July 2014.
  • Cabbies vs. Uber and the Shared Economy. National Public Radio (KCRW), June 2014.
  • Business Matters. BBC World Service, April 2014.
  • Bay Area Cities Move to Regulate the Sharing Economy. National Public Radio (KQED), April 2014.
  • Arun Sundararajan - "Approach with optimism". Sharing Economy Radio (podcast) February 2014.
  • With Generational Shifts, The New Sharing Economy Flourishes. National Public Radio, September 2013.
  • Disruptive Business Model. Minnesota Public Radio (The Daily Circuit), August 2013.
  • The Sharing Economy. National Public Radio (On Point), July 2013.
  • Airbnb: When law clashes with the 'share economy'. CBC Radio (The Current), May 2013.



    Other interviews/profiles

  • Vers un nouvel equilibre economique? (cover story) Socialter, August 2014.
  • What Drives Americas Go-To Expert on the Sharing Economy? Next City, May 2014.
  • Regards croises sur le futur de l'economie collaborative. Le Monde, May 2014.
  • La economia colaborativa es una oportunidad para los paises en desarrollo. El Pais, May 2014.
  • Woman With a Car vs. Washington D.C.'s Taxi Cartel. Reason, May 2014.
  • Can a Used E-Book Market Survive the Legal Attacks. CNBC, May 2013.


  • Selected recent media coverage (back to top)

  • US federal action against payday loans picks up. CCTV, August 2014.
  • How Tech Companies Are Changing The Rules in NYC. Epoch Times, August 2014.
  • Flight-Share Deemed Illegal by FAA in Blow to AirPooler. Bloomberg, August 2014.
  • Can Technology Really Change Your Habits? Fast Company, August 2014.
  • It Takes a New Kind of Worker to Make "Instant" Happen. Re/code, August 2014.
  • The sharing economy's growing pains. Reuters, July 2014.
  • Ne prenons pas (tous) les scouts numeriques de l'economie collaborative pour de naifs altruistes. Slate, July 2014.
  • How Amazon Brought Publishing to Its Knees -- and Why Authors Might Be Next. Mashable, July 2014.
  • Recycle, Reuse, Reprofit. TIME Magazine, July 2014.
  • TaskRabbit makes some users hopping mad. San Francisco Chronicle, July 2014.
  • Is Uber Above the Law? Probably Not.. Bloomberg BusinessWeek, July 2014.
  • Uber's Brilliant Strategy to Make Itself Too Big To Ban. Wired, July 2014.
  • 7 Ways Fashion Startups Can Become the Next Rent the Runway. Entrepreneur, June 2014.
  • A Victory for Airbnb in New York. The New York Times, May 2014.
  • Uber Isn't a Savior for Drivers Any More Than Amazon Is for Authors. Mashable, May 2014.
  • How Airbnb and Lyft Finally Got Americans to Trust Each Other. Wired, May 2014.
  • Change Habits, Change Your Behavior. Entrepreneur, April 2014.
  • Why we cant figure out how to regulate Airbnb. Washington Post, April 2014.
  • Airbnb Challenges New York Rental Probe Subpoena. Bloomberg BusinessWeek, April 2014.
  • How The Word Entrepreneur Got Too Popular For Its Own Good. Fast Company, April 2014.
  • Crowdfunding lures investors seeking stock over goggles. Bloomberg BusinessWeek, April 2014.
  • Last BRIC standing: Why analysts like India now CNBC, April 2014.
  • Experts Bullish on Citibike. The Wall Street Journal, March 2014
  • The Morning Download. The Wall Street Journal, March 2014
  • Uber Cab Confessions. GQ Magazine, March 2014
  • The future of Bitcoin uncertain. CBS News, February 2014
  • Digital doubts after Bitcoin debacle. Reuters, February 2014
  • Editors' Choice: Information and Freedom Science, January 2014
  • The sharing economy: would you get in a car with a stranger? The Guardian, January 2014
  • Congress takes a casual look at the peer-to-peer economy. Financial Times, January 2014
  • Why Does New York Hate the Sharing Economy? Bloomberg, January 2014
  • Hopes for Productivity Revival in Sharing Economy. San Francisco Chronicle, January 2014
  • The Ride-Sharing, Handbag-Borrowing Productivity Revival. Bloomberg BusinessWeek, December 2013
  • From Geek Street to Main Streets. CNet, November 2013
  • Rentals that let you fly the coop. The New York Times, October 2013.
  • When online upstarts rattle the playing field. Chicago Tribune, October 2013.
  • 'Sharing economy' is here to stay. Los Angeles Times, September 2013.
  • California to regulate ride-sharing groups. Financial Times, September 2013.
  • Barcode Nation. Foreign Policy, September 2013.
  • Uber Alles. The New Yorker, September 2013.
  • What the Sharing Economy Needs is a Little Less Democracy. Wired, August 2013.
  • Startups want their fair share.Crain's New York Business, August 2013.
  • Icahn's Plans for Apple Unlikely to Help. Yahoo Finance, August 2013.
  • Study Now, Pay Later. The Village Voice, August 2013.
  • Sharing economy moves mainstream. San Jose Mercury News, August 2013.
  • Caveat Sharer. TIME Magazine, June 2013.


  • Selected recent and forthcoming speaking engagements (back to top)

  • L2 Innovation Forum, New York City (November 2014)
  • Carnegie-Mellon University, Pittsburgh (October 2014)
  • World Economic Forum (October 2014)
  • Crowd Companies Summit, New York City (October 2014)
  • PIVOT Conference, New York City (October 2014) details
  • CityLab: Urban Solutions to Global Challenges, Los Angeles (September 2014)
  • Techonomy Detroit (September 2014) details
  • SOCAP14, San Francisco (September 2014)
  • Seoul Metropolitan Government Summit (September 2014)
  • The Public Society, New York City (August 2014)
  • NYU Stern Launch, New York City (August 2014) details
  • Federal Trade Commission, Washington DC (July 2014)
  • Microsoft Faculty Summit, Seattle (July 2014) details
  • Recontres Economiques d'Aix-en-Provence (July 2014)   details   watch   read edited talk published by Le Monde
  • La French Touch Conference (June 2014) details
  • Northside Festival, Willamsburg (June 2014) details
  • Collaborative-Peer-Sharing-Economy Summit, New York City (May 2014) details - summary 1 - summary 2
  • SHARE Conference, San Francisco (May 2014) details
  • OECD Forum, Paris (May 2014) watch summary
  • OuiShare Fest, Paris (May 2014) watch my keynote
  • Northside Innovation Forum, New York City (April 2014)
  • Piper Jaffray Technology/Media Investor Conference, New York City (March 2014)
  • Social Media Week, New York City (February 2014) details
  • US House of Representatives, Washington DC (January 2014) testimony
  • The Digital Future of Higher Education (November 2013) summary
  • Techonomy 2013, Tucson (November 2013)
  • Cyberposium 2013, Harvard Business School (November 2013)
  • Economic Sociology Workshop, NYU (October 2013) summary
  • Shared Use Mobility Summit, UC Berkeley (October 2013)
  • Federal Reserve, San Francisco (October 2013)
  • L2 Clinic: Digital Influence, New York City (September 2013) view: AOL on Tech
  • NYU Stern Launch, New York City (August 2013) view on YouTube
  • Microsoft Research, New York City (August 2013)
  • Center for Urban Science+Progress, New York City (July 2013)
  • US Conference of Mayors, Las Vegas (June 2013)
  • ZEW Workshop on Social Network Formation and Peer Effects, Mannheim (June 2013)


  • Brief bio (back to top)

    Arun Sundararajan is Professor and NEC Faculty Fellow at New York University's Leonard N. Stern School of Business. He also heads the Social Cities Initiative at NYU's Center for Urban Science+Progress, and is an affiliated faculty member at NYU's Center for Data Science. Professor Sundararajan's research program studies how digital technologies transform business and society. Some of his current and recent research focuses on the governance of digital spaces, collaborative consumption and the sharing economy, social media and cities, digital institutions, contagion in networks, privacy strategy, pricing in digital markets and managing online piracy. He has published in numerous scientific journals and has given more than 200 conference and invited presentations internationally. His research has been recognized by four Best Paper awards, been supported by organizations that include Yahoo!, Microsoft, Google and IBM, and recently profiled by trade publications that include The Atlantic, Bloomberg BusinessWeek, Fast Company, the Financial Times, Forbes, the San Francisco Chronicle and the Wall Street Journal. His op-eds and expert commentary have appeared in TIME Magazine, the New Yorker, the New York Times, Le Monde, El Pais, Wired, TechCrunch, the Wall Street Journal, the Financial Times and Harvard Business Review, and on Al Jazeera, BBC News, Bloomberg, CNN, CNBC, Fox, NPR, PBS and a variety of non-English language TV networks. He has served as Director of NYU Stern's IS Doctoral Program since 2007, is one of the founders of the Workshop on Information in Networks, and is an advisor to OuiShare and the National League of Cities. He holds degrees from the Indian Institute of Technology, Madras and the University of Rochester. Follow him on Twitter @digitalarun

    Socialter cover - speaking headshot - serious headshot - smiling headshot - pronounce my complicated name



    Directions to my office (back to top)

    (I frequently email some variant of the text in the following paragraph to my visitors and am reproducing it here for convenience. If you do want to visit me, please don't simply show up and knock on my door. Rather, make sure we have been in touch to schedule a meeting time first, or contact Sharon Kim. For interview requests and other media inquiries, contact Rika Nazem (212-998-0678) or Jessica Neville (416-516-7677) in the NYU Stern Office of Public Affairs.)

    Stern office: The Kaufman Management Center is the building on the right when you face Gould Plaza, at the intersection of West 4th Street and Greene Street. Once you get past the security desk, take the elevators to the 8th floor. Turn left when you exit the elevators, walk to the end of the hallway and through the double doors on your right. You should now be in a small, empty, lobby-like area. (If you aren't, you may be on the wrong floor. Or in the wrong building. Are you sure you're even in New York?) If you are, walk towards the three cubicles in front of you, then look left. I'm in 8-90, the corner office that has the door with a large printout of this on it.

    CUSP office: CUSP is on the 19th floor of the National Grid building at 1 Metrotech Center. If you're coming by subway, use the Myrtle Promenade exit from the Jay Street/Metrotech stop. 1 Metrotech Center is immediately on your right as you come out of the subway station. Enter the building and take the escalator on your right up to the security desk. Get past security (simply signing in does the trick, although there are other options), then take the elevators to the 19th floor. Walk through the main entrance into CUSP, turn right at the reception desk, walk to the end of the hallway, turn right again, walk to the end of the hallway again. My office is immediately to the right of the Bensonhurst conference area you see in front of you, room 1926.