Publications

2021
Working Paper

Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention

By: Brad Chattergoon and William R. Kerr

U.S. invention has become increasingly concentrated around major tech centers since the 1970s, with implications for how much cities across the country share in concomitant local benefits. Is invention becoming a winner-takes-all race? We explore the rising spatial... View Details

Keywords: Invention; Innovation; Artificial Intelligence; Clusters; Agglomeration; Innovation and Invention; Patents; Applications and Software; Industry Clusters; United States

27 Aug 2013
First Look

First Look: August 27

jointly develops an offshore tract-performs relative to a solo firm. I employ a regression discontinuity strategy based on bids in first-price sealed-bid auctions for the rights to develop leases. By focusing on leases where one... View Details

Keywords: Sean Silverthorne

November 2016
Supplement

Uber in China: Driving in the Gray Zone (B)

By: William C. Kirby, Yuanzhuo Wang, Shuang L. Frost and Adam K. Frost

Starting in 2014, for two years Uber had fought an intense, costly battle for China’s ridesharing market with well-financed and well-connected domestic Chinese competitors. During this time, Uber also had to respond to an ever-shifting regulatory landscape that looked... View Details

Keywords: China; Uber; Didi Chuxing; Start-up Growth; Regulation; Ride-sharing; Transportation; Business Startups; Growth and Development; Cross-Cultural and Cross-Border Issues; Transportation Industry; Technology Industry; China

17 Apr 2012
First Look

First Look: April 17

Participants assigned to recall a purchase made for someone else reported feeling significantly happier immediately after this recollection; most importantly, the happier participants felt, the more likely they were to choose to spend a windfall on someone else in the... View Details

Keywords: Carmen Nobel

27 Apr 2017
News

Fellowship Fuels a Passion for a Career in Aviation

business have helped him appreciate the importance of diversity of thought, which fellowships enable in the classroom. “You arrive at better solutions when you have people from different backgrounds. It's the way business should work.” Stefan View Details

July 2023 (Revised July 2024)
Case

Miracle Therapeutics: Negotiating an IP License (A)

By: Satish Tadikonda, Michael Singer, William Marks and Wendi Yajnik

(General Experience Case) Beth Sharp and Jennifer Brilliant founded Miracle Therapeutics based on intellectual property developed by Brilliant and her post-doctoral student, John Supreme, in Brilliant’s lab at Elite University (EU). Miracle will have to obtain a... View Details

Keywords: Business Startups; Entrepreneurship; Patents; Negotiation Process

04 Dec 2012
First Look

First Look: December 4

case:http://hbr.org/search/913701-PDF-ENG Convertible Notes in Angel Financing Ramana Nanda and William R. KerrHarvard Business School Note 813-017 This note introduces convertible notes in angel financing. It begins View Details

Keywords: Carmen Nobel

2016
Working Paper

Collusion in Markets with Syndication

By: John William Hatfield, Scott Kominers and Richard Lowery

Markets for IPOs and debt issuances are syndicated, in the sense that a bidder who wins a contract may invite losing bidders to join a syndicate that together fulfills the contract. We show that in markets with syndication, standard intuitions from... View Details

Keywords: Collusion; Antitrust; IPO Underwriting; Syndication; ＂Repeated Games＂

October 2019
Teaching Note

Google: To TVC or Not to TVC?

By: William R. Kerr and Carl Kreitzberg

A Teaching Note for the "Google: To TVC or Not to TVC?" case study (HBS#820-048). The case discusses recent controversies regarding how Google manages temporary help agency workers, workers supplied by vendors, and independent contractors ("TVCs"). Such TVCs reportedly... View Details

29 Sep 2009
First Look

First Look: September 29

yields. However, the fraction of seniors is uncorrelated with share repurchases, investment, or profitability, suggesting that geographic variation in dividend payout is not driven by some unmeasured firm characteristic affecting the... View Details

Keywords: Martha Lagace

February 2025
Teaching Note

Influencer-Led Brand Building: Hairitage and the McKnights

By: William R. Kerr and James Palano

Teaching Note for HBS Case No. 825-066. Mindy McKnight started in 2009 as an early influencer on social media whose videos of creative hairstyles for girls launched her family on an entrepreneurship journey. The McKnights transitioned from YouTube ad revenue to brand... View Details

Keywords: Family Business; Social Media; Entrepreneurship; Brands and Branding; Product Launch; Power and Influence; Expansion; Beauty and Cosmetics Industry

August 2015 (Revised May 2017)
Case

TSG Hoffenheim: Football in the Age of Analytics

By: Feng Zhu, Karim R. Lakhani, Sascha L. Schmidt and Kerry Herman

In 2015, Dietmar Hopp, owner of Germany's Bundesliga football team TSG Hoffenheim and co-founder of the global enterprise software company SAP, was considering how to ensure long-term sustainability and competitiveness for TSG Hoffenheim. While historically a small... View Details

Keywords: Information Technology; Measurement and Metrics; Sports; Sports Industry

2017
Chapter

Immigrant Entrepreneurship

By: William R. Kerr and Sari Pekkala Kerr

We examine immigrant entrepreneurship and the survival and growth of immigrant-founded businesses over time relative to native-founded companies. Our work quantifies immigrant contributions to new firm creation in a wide variety of fields and using multiple... View Details

Keywords: Entrepreneurship; Immigration; United States

December 2012
Case

Blink Booking

By: William R. Kerr, Magnus Thor Torfason and Alexis Brownell

Rebeca Minguela hopes to create an arbitrage platform, similar to Rocket Internet, that can bring start-up ideas and opportunities to Spain. However, Blink Booking, her first venture and proof of concept, is rocked by a co-founder's breach of confidence and departure.... View Details

Keywords: Clones; Cloning; Rocket Internet; Start-up; Equity Split; Arbitrage; Incubator; Mobile App; Expansion; Spain; Europe; Entrepreneurship; Ethics; Internet and the Web; Information Technology Industry; Accommodations Industry; Travel Industry; Spain; Europe

November 2021
Article

Gaussian Process Subset Scanning for Anomalous Pattern Detection in Non-iid Data

By: William Herlands, Edward McFowland III, Andrew Gordon Wilson and Daniel B. Neill

Identifying anomalous patterns in real-world data is essential for understanding where, when, and how systems deviate from their expected dynamics. Yet methods that separately consider the anomalousness of each individual data point have low detection power for subtle,... View Details

Keywords: Pattern Detection; Subset Scanning; Gaussian Processes; Mathematical Methods

14 Jun 2016
First Look

June 14, 2016

patent applications in 1976 to 16% in 2008. This is partly driven by the increase in the prevalence of information and communication technology; however, even for patents unrelated to information and communication technology, we see a... View Details

Keywords: Sean Silverthorne

February 2017
Case

Yemeksepeti: Growing and Expanding the Business Model through Data

By: William R. Kerr, Gamze Yucaoglu and Eren Kuzucu

In October 2016, Nevzat Aydin, co-founder and CEO of Yemeksepeti, the Turkish online food-ordering company, was looking over the company's quarterly results and projections for the upcoming year with his management team. It had been almost a year and a half since Aydin... View Details

March 2022
Article

Winner Takes All? Tech Clusters, Population Centers, and the Spatial Transformation of U.S. Invention

By: Brad Chattergoon and William R. Kerr

U.S. invention has become increasingly concentrated around major tech centers since the 1970s, with implications for how much cities across the country share in concomitant local benefits. Is invention becoming a winner-takes-all race? We explore the rising spatial... View Details

Keywords: Clusters; Invention; Agglomeration; Artificial Intelligence; Innovation and Invention; Patents; Applications and Software; Industry Clusters; AI and Machine Learning

Find at Harvard

January 2025 (Revised March 2025)
Case

DJI- Striving for Innovation Amid Contestation

By: William C. Kirby and Daniel Fu

DJI was founded in a college dorm room in Clear Water Bay, Hong Kong. By 2020, DJI, a company manufacturing drones, occupied a 77% share of consumer drone sales in the United States with a wide array of clients including law enforcement and government agencies. Its... View Details

Keywords: Drones; Hong Kong; China; Chinese Manufacturing; Chinese Dream; China's Political Economy