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- All HBS Web (788)
- Faculty Publications (123)
- Article
Platform Competition: Betfair and the U.K. Market for Sports Betting
By: Ramon Casadesus-Masanell and Neil Campbell
We examine two episodes of strategic interaction in the U.K. betting industry: (i) Betfair (an entrant multi-sided platform or MSP) vs. Flutter (also an MSP) and (ii) Betfair vs. traditional bookmakers. We find that although Betfair was an underfunded second mover in... View Details
Keywords: Platform Design; Betting; Complements; Competing Business Models; Co-opetition; Entry; Multi-Sided Platforms; Design; Network Effects; Business Model; Competition; Cooperation
Casadesus-Masanell, Ramon, and Neil Campbell. "Platform Competition: Betfair and the U.K. Market for Sports Betting." Special Issue on Platforms. Journal of Economics & Management Strategy 28, no. 1 (Spring 2019): 29–40.
- 01 Jun 2012
- News
Good as Our Word
And finally, how would the firm acquire status as a Nationally Recognized Statistical Rating Organization, an SEC designation that is considered a key “must-have” by many credit View Details
- 2019
- Working Paper
Design Rules, Volume 2: How Technology Shapes Organizations: Chapter 13 Platform Systems vs. Step Processes—The Value of Options and the Power of Modularity
This is the first chapter in Part 3. Its purpose is to contrast the value structure of platform systems with step processes from a technological perspective. I first review the basic technical architecture of computers and argue that every computer is inherently a... View Details
Keywords: Platform Systems; Step Processes; Computer Architecture; Modularity; Information Technology; Digital Platforms
Baldwin, Carliss Y. "Design Rules, Volume 2: How Technology Shapes Organizations: Chapter 13 Platform Systems vs. Step Processes—The Value of Options and the Power of Modularity." Harvard Business School Working Paper, No. 19-073, January 2019.
- 01 Dec 2022
- News
Action Plan: To the Letter
Palatino, Optima, and Gotham, among numerous other well-known names—Monotype offers typefaces from more than 4,000 designers and foundries, a total of well over 200,000 options. Until recently, these fonts were licensed to View Details
- March 2024 (Revised January 2025)
- Case
Hippo: Weathering the Storm of the Home Insurance Crisis
By: Lauren Cohen, Grace Headinger and Sophia Pan
Rick McCathron, CEO of Hippo, considered how the firm’s underwriting model could account for the effects of climate change. Along with providing smart home packages, targeting risk-friendly customers, and using data-driven pricing, the Insurtech used technologically... View Details
Keywords: Fintech; Underwriters; Big Data; Insurance Companies; Business Model Design; Weather Insurance; Business Model; Forecasting and Prediction; Climate Change; Environmental Sustainability; Green Technology; Technological Innovation; Natural Environment; Natural Disasters; Weather; Business Strategy; Competitive Advantage; Business Earnings; Insurance; Social Issues; Insurance Industry; United States; California
- December 2014
- Teaching Note
Rick's Dilemma
By: Arthur I Segel and Ben Eppler
This is a teaching note designed to accompany the case "Rick's Dilemma." View Details
- December 2021
- Article
Trade Policy Uncertainty and Stock Returns
By: Marcelo Bianconi, Federico Esposito and Marco Sammon
A recent literature has documented large real effects of trade policy uncertainty (TPU) on trade, employment, and investment, but there is little evidence that investors are compensated for bearing such risk. To quantify the risk premium associated with TPU, we exploit... View Details
Keywords: Trade Policy; Uncertainty; Stock Returns; Risk Premium; Tariff Rates; Portfolio Analysis; Trade; Policy; Risk and Uncertainty; Stocks; Investment Return
Bianconi, Marcelo, Federico Esposito, and Marco Sammon. "Trade Policy Uncertainty and Stock Returns." Art. 102492. Journal of International Money and Finance 119 (December 2021).
- March 2020
- Article
Which Early Withdrawal Penalty Attracts the Most Deposits to a Commitment Savings Account?
By: John Beshears, James J. Choi, Christopher Harris, David Laibson, Brigitte C. Madrian and Jung Sakong
Previous research has shown that some people voluntarily use commitment contracts that restrict their own choice sets. We study how people divide money between two accounts: a liquid account that permits unrestricted withdrawals and a commitment account that is... View Details
Keywords: Quasi-hyperbolic Discounting; Present Bias; Sophistication; Naiveté; Commitment; Flexibility; Savings; Contract Design; Defined Contribution Retirement Plan; 401 (K); IRA; Saving; Behavior; Contracts; Design; Interest Rates
Beshears, John, James J. Choi, Christopher Harris, David Laibson, Brigitte C. Madrian, and Jung Sakong. "Which Early Withdrawal Penalty Attracts the Most Deposits to a Commitment Savings Account?" Art. 104144. Journal of Public Economics 183 (March 2020).
- 2021
- Working Paper
Accounting for Product Impact in the Interactive Media and Services Industry
By: DG Park, George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the interactive media and services industry. We design a monetization methodology that allows us to calculate monetary impact... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Product Design; Product Positioning; Society; Product; Environmental Sustainability; Measurement and Metrics; Framework; Corporate Social Responsibility and Impact; Social Media; Technology Industry
Park, DG, George Serafeim, and Katie Trinh. "Accounting for Product Impact in the Interactive Media and Services Industry." Harvard Business School Working Paper, No. 21-134, June 2021.
- 2021
- Working Paper
Accounting for Product Impact in the Telecommunications Industry
By: George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the telecommunications industry. We design a monetization methodology that allows us to calculate monetary impact estimates of network... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Telecommunications; Product Design; Product Positioning; Society; Product; Environmental Sustainability; Measurement and Metrics; Framework; Corporate Social Responsibility and Impact; Telecommunications Industry
Serafeim, George, and Katie Trinh. "Accounting for Product Impact in the Telecommunications Industry." Harvard Business School Working Paper, No. 21-105, March 2021. (Revised May 2021.)
- 2021
- Working Paper
Accounting for Product Impact in the Airlines Industry
By: George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the airlines industry. We design a monetization methodology that allows us to calculate monetary impact estimates of fare... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Aviation; Product Design; Product Positioning; Society; Product; Environmental Sustainability; Measurement and Metrics; Framework; Corporate Social Responsibility and Impact; Air Transportation; Air Transportation Industry
Serafeim, George, and Katie Trinh. "Accounting for Product Impact in the Airlines Industry." Harvard Business School Working Paper, No. 21-066, November 2020. (Revised February 2021.)
- 2021
- Working Paper
Accounting for Product Impact in the Pharmaceuticals Industry
By: Amanda Rischbieth, George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the pharmaceuticals industry. We design a monetization methodology that allows us to calculate monetary impact estimates of accessible... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Pharmaceutical Companies; Pharmaceuticals; IWAI; Product Design; Product Positioning; Society; Environmental Sustainability; Corporate Social Responsibility and Impact; Product; Safety; Pharmaceutical Industry
Rischbieth, Amanda, George Serafeim, and Katie Trinh. "Accounting for Product Impact in the Pharmaceuticals Industry." Harvard Business School Working Paper, No. 21-139, June 2021.
- 2021
- Working Paper
Accounting for Product Impact in the Water Utilities Industry
By: George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the water utilities industry. We design a monetization methodology that allows us to calculate monetary impact estimates of water... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Water; Utilities; Product Design; Product Positioning; Society; Product; Environmental Sustainability; Measurement and Metrics; Framework; Corporate Social Responsibility and Impact; Utilities Industry
Serafeim, George, and Katie Trinh. "Accounting for Product Impact in the Water Utilities Industry." Harvard Business School Working Paper, No. 21-104, March 2021.
- 2020
- Working Paper
Accounting for Product Impact in the Consumer Finance Industry
By: George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor credit card providers within the consumer finance industry. We design a monetization methodology that allows us to calculate monetary impact estimates... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Consumer Finance; Financial Services; Financial Inclusion; Product; Product Design; Product Positioning; Society; Corporate Social Responsibility and Impact; Personal Finance; Credit Cards; Financial Services Industry
Serafeim, George, and Katie Trinh. "Accounting for Product Impact in the Consumer Finance Industry." Harvard Business School Working Paper, No. 21-061, November 2020. (Revised December 2020.)
- April 2015 (Revised January 2020)
- Case
Japan's Missing Arrow?
By: Laura Alfaro and Hilary White
In late December 2014, Shinzo Abe was elected to another term as the prime minister of Japan. His re-election was largely interpreted as a vote of confidence for his economics policies, collectively referred to as "Abenomics." Comprised of three "arrows," including... View Details
Keywords: Currency; Bonds; Government Bonds; Government Debt; Public Finance; Quantitative Easing; Stimulus; Fiscal Policy; Fiscal Deficits; Debt Management; Debt Reduction; Abenomics; Exchange Rate; Exports; Reform; Economics; Macroeconomics; Policy; Government Legislation; Government and Politics; Asia; Japan
Alfaro, Laura, and Hilary White. "Japan's Missing Arrow?" Harvard Business School Case 715-050, April 2015. (Revised January 2020.)
- 2021
- Working Paper
Accounting for Product Impact in the Consumer-Packaged Foods Industry
By: Amanda Rischbieth, George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the consumer-packaged goods industry. We design a methodology that allows us to calculate monetary impact estimates on customer... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Nutrition Database; Nutritional Information; CPG; Consumer Packaged Goods; IWAI; Product Design; Product Positioning; Society; Environmental Sustainability; Corporate Social Responsibility and Impact; Nutrition; Product; Safety; Consumer Products Industry
Rischbieth, Amanda, George Serafeim, and Katie Trinh. "Accounting for Product Impact in the Consumer-Packaged Foods Industry." Harvard Business School Working Paper, No. 21-051, October 2020. (Revised October 2021.)
- 2021
- Working Paper
Accounting for Product Impact in the Oil and Gas Industry
By: Katie Panella, George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor companies within the oil and gas industry. We design a monetization methodology that allows us to calculate monetary product impact estimates of... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Oil; Oil ＆ Gas; Oil And Gas; IWAI; Impact-Weighted Accounts; Product Design; Product Positioning; Society; Environmental Sustainability; Corporate Social Responsibility and Impact; Product
Panella, Katie, George Serafeim, and Katie Trinh. "Accounting for Product Impact in the Oil and Gas Industry." Harvard Business School Working Paper, No. 21-140, June 2021.
- Forthcoming
- Article
Pricing of Climate Risk Insurance: Regulation and Cross-Subsidies
By: Ishita Sen, Ana-Maria Tenekedjieva and Sangmin Oh
We study the pricing of homeowners’ insurance, a $15 trillion market essential for hedging climate-related losses. We show that insurance premiums are subject to starkly different regulations across states, creating persistent cross-subsidies and price distortions. We... View Details
Keywords: Climate Risk; Homeowners' Insurance; Price Controls; Financial Regulation; Cross-subsidization; Climate Change; Price; Risk and Uncertainty; Geographic Location; Insurance Industry; United States
Sen, Ishita, Ana-Maria Tenekedjieva, and Sangmin Oh. "Pricing of Climate Risk Insurance: Regulation and Cross-Subsidies." Journal of Finance (forthcoming).
- Article
Inflation and Taxes in a Growing Economy with Debt and Equity
By: M. Feldstein, Jerry R. Green and Eytan Sheshinski
Our tax system was designed for an economy with little or no inflation. The current paper shows that inflation causes capricious changes in the effective rate of tax on capital income and therefore in the real net rate of return that savers receive. This is not only a... View Details
Feldstein, M., Jerry R. Green, and Eytan Sheshinski. "Inflation and Taxes in a Growing Economy with Debt and Equity." Special Issue on Research in Taxation. Journal of Political Economy 86, no. 2 pt. 2 (April 1978): S53–S70.
- January 2009 (Revised December 2017)
- Case
Who Broke the Bank of England?
By: Niall Ferguson and Jonathan Schlefer
In the summer of 1992, hedge fund manager George Soros was contemplating the possibility that the European Exchange Rate Mechanism (ERM) would break down. Designed to pave the way for a full-scale European Monetary Union, the ERM was a system of fixed exchange rates... View Details
Keywords: Decision Choices and Conditions; Currency Exchange Rate; Investment; Governing Rules, Regulations, and Reforms; Financial Services Industry; European Union
Ferguson, Niall, and Jonathan Schlefer. "Who Broke the Bank of England?" Harvard Business School Case 709-026, January 2009. (Revised December 2017.)