Publications

SSRN

2009
Working Paper

Breakthrough Inventions and Migrating Clusters of Innovation

By: William R. Kerr

We investigate the speed at which clusters of invention for a technology migrate spatially following breakthrough inventions. We identify breakthrough inventions as the top one percent of US inventions for a technology during 1975-1984 in terms of subsequent citations.... View Details

Keywords: Geographic Location; Immigration; Disruptive Innovation; Technological Innovation; Patents; Industry Clusters; United States

SSRN

2009
Working Paper

Systemic Risk and the Refinancing Ratchet Effect

By: Amir E. Khandani, Andrew W. Lo and Robert C. Merton

The confluence of three trends in the U.S. residential housing market—rising home prices, declining interest rates, and near-frictionless refinancing opportunities—led to vastly increased systemic risk in the financial system. Individually, each of these trends is... View Details

Keywords: Housing; Mortgages; Risk and Uncertainty; Value; Mathematical Methods; Real Estate Industry; United States

18 Dec 2018
First Look

New Research and Ideas, December 18, 2018

Effective Spaces Twenty-four-year old Ritesh Agarwal, founder and CEO of India-based online hotel branding network OYO Rooms, has tackled the issue of unreliability in India's highly fragmented budget hotel industry. In 2018, OYO branded 8,500 View Details

Keywords: Dina Gerdeman

Article

Transition to Clean Technology

By: Daron Acemoglu, Ufuk Akcigit, Douglas Hanley and William R. Kerr

We develop a microeconomic model of endogenous growth where clean and dirty technologies compete in production and innovation, in the sense that research can be directed to either clean or dirty technologies. If dirty technologies are more advanced to start with, the... View Details

Keywords: Technological Innovation; Entrepreneurship; Environmental Sustainability; Green Technology Industry

Find at Harvard

Dennis Yao is the Lawrence E. Fouraker Professor of Business Administration and Chair of the Doctoral Programs at Harvard Business School. He joined the faculty in 2004 after having been at the Wharton School, University of Pennsylvania. From 1991-1994 he served as... View Details

Keywords: automotive; defense; federal government; high technology

January 2010
Article

Breakthrough Inventions and Migrating Clusters of Innovation

By: William R. Kerr

We investigate the speed at which clusters of invention for a technology migrate spatially following breakthrough inventions. We identify breakthrough inventions as the top one percent of U.S. inventions for a technology during 1975-1984 in terms of subsequent... View Details

Keywords: History; Technological Innovation; Patents; Labor; Immigration; United States

August 2011
Article

Independent Invention During the Rise of the Corporate Economy in Britain and Japan

By: Tom Nicholas

Independent inventors accounted for approximately half of all patents in Britain and Japan by 1930, despite the rise of the corporate economy and the spread of industrial R&D. A mixture of patent renewal and historical citations data reveals that the quality of... View Details

Keywords: Independent Innovation and Invention; Development Economics; Research and Development; Patents; System; Motivation and Incentives; Tokyo; London; United States

Find at Harvard

Frank Nagle is an assistant professor in the Strategy Unit at Harvard Business School. Professor Nagle studies how competitors can collaborate on the creation of core technologies, while still competing on the products and services built on top of them - especially... View Details

Teaching Interest

Strategy and Technology

By: Andy Wu

The Strategy and Technology elective course explores the unique aspects of creating effective strategies for technology-intensive businesses.

What strategies win in markets with network effects?
How can technology be... View Details

03 Nov 2009
First Look

First Look: Nov. 3

Working PapersContracting in the Self-reporting Economy (revised) Authors:Romana L. Autrey and Richard Sansing Abstract This paper examines the effect of accounting on the use of intellectual property. We analyze the licensing of intellectual View Details

Keywords: Martha Lagace

2008
Working Paper

The Agglomeration of U.S. Ethnic Inventors

By: William R. Kerr

The ethnic composition of US inventors is undergoing a significant transformation—with deep impacts for the overall agglomeration of US innovation. This study applies an ethnic-name database to individual US patent records to explore these trends with greater detail.... View Details

Keywords: Information Technology; Geographic Location; Patents; Ethnicity; City; Innovation and Invention; United States

SSRN

27 Aug 2013
First Look

First Look: August 27

many managers overestimate the attractiveness of using IP to exert market power. Rather, the value of the various means to protect and benefit from IP depends on firm strategy, the competitive landscape, and the rapidly changing contours of intellectual View Details

Keywords: Sean Silverthorne

June 2019 (Revised February 2020)
Case

Eric Hawkins Leading Agile Teams @ Digitally-Born AppFolio (A)

By: Tsedal Neeley, Paul Leonardi and Michael Norris

Eric Hawkins, director of engineering at AppFolio—a digital technology firm that offered cloud-based business software to small and medium sized companies—was shocked by an unusual request from his senior leadership team. Could Hawkins and one of his agile teams build... View Details

Keywords: Values; Agile; Vision; Corporate Culture; Leadership; Values and Beliefs; Organizational Culture; Decision Choices and Conditions; Digital Transformation; Technology Industry; United States; California

September 2017
Case

Give Us a 'C'! Killing Knock-offs with Copyright?

By: Lena G. Goldberg

Varsity Brands, the leading manufacturer of cheerleading uniforms in the United States, obtained copyright protection for certain designs of stripes, chevrons, color blocks and lines on cheerleading uniforms. Star Athletica, a newcomer in the field, used those designs... View Details

Keywords: Intellectual Property; Law; Lawsuits and Litigation; Design; Apparel and Accessories Industry; Apparel and Accessories Industry

March 2023
Supplement

Allianz Türkiye (C): Managing the 2017 Hail Storm

By: John D. Macomber and Fares Khrais

Allianz Turkey is a property casualty insurance company operating in a region experiencing increasing losses from natural catastrophe events related to climate change, for example hail, wildfire, and flooding. There are also substantial other natural catastrophe... View Details

Keywords: Insurance And Reinsurance; Natural Disasters; Turkey; Insurance; Climate Change; Analytics and Data Science; Insurance Industry; Insurance Industry; Turkey

March 2023 (Revised April 2024)
Case

Allianz Türkiye: Adapting to Climate Change

By: John D. Macomber and Fares Khrais

Allianz Turkey is a property casualty insurance company operating in a region experiencing increasing losses from natural catastrophe events related to climate change, for example hail, wildfire, and flooding. There are also substantial other natural catastrophe... View Details

Keywords: Insurance And Reinsurance; Natural Disasters; Turkey; Insurance; Climate Change; Analytics and Data Science; Insurance Industry; Insurance Industry; Turkey

Web

Topics - HBS Working Knowledge

Industries (8) Goals and Objectives (18) Going Public (36) Goods and Commodities (7) Governance Compliance (4) Governance Controls (76) Governance (268) Governing Rules, Regulations, and Reforms (72) Governing and Advisory Boards (20)... View Details

December 2007 (Revised April 2008)
Case

Alltech...naturally

By: David E. Bell and Mary L. Shelman

Entrepreneur Pearse Lyons had built Alltech into the fastest growing company in the global animal health industry through innovative technology, creative marketing, and strong branding. Sel-Plex, a proprietary Alltech product, had shown important health benefits for... View Details

Keywords: Brands and Branding; Leadership Development; Customer Focus and Relationships; Expansion; Technological Innovation; Intellectual Property; Sales; Value Creation; Business Model; Growth and Development Strategy; Health Industry