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- All HBS Web (217)
- Faculty Publications (105)
Show Results For
- All HBS Web (217)
- Faculty Publications (105)
- February 2023 (Revised March 2023)
- Case
Twitter Turnaround and Elon Musk
By: Andy Wu and Goran Calic
Late afternoon on Friday, October 27th, 2022, Elon Musk was the center of attention at Twitter’s San Francisco headquarters. The night before, Musk officially took the company private and became Twitter’s majority shareholder, finally ending a months-long acquisition... View Details
Keywords: Elon Musk; Twitter; Acquisition; Revenue; Advertising; Social Media; Business or Company Management; Public Opinion; Job Cuts and Outsourcing
Wu, Andy, and Goran Calic. "Twitter Turnaround and Elon Musk." Harvard Business School Case 723-418, February 2023. (Revised March 2023.)
- October 1996 (Revised December 2022)
- Case
Chiquita Brands International (A)
By: Debora L. Spar and Terence Mulligan
When a new banana import policy is implemented in 1993 by the European Union, Chiquita Brands International, the world's largest banana distributor, watches its sales and net income plummet. The policy, Council Regulation (EEC 404/93), uses a new tariff and quota... View Details
Keywords: Plant-Based Agribusiness; Trade; Government and Politics; Policy; Market Design; Fairness; Agriculture and Agribusiness Industry; Latin America; European Union
Spar, Debora L., and Terence Mulligan. "Chiquita Brands International (A)." Harvard Business School Case 797-015, October 1996. (Revised December 2022.)
- July 2010 (Revised June 2012)
- Background Note
Note: Regulation of Hedge Fund Managers in the U.K. Before and After the Global Financial Crisis
By: Robert C. Pozen and Melissa Anne Hammerle
This note will examine the regulatory framework for hedge funds in the United Kingdom (UK) before and after the financial crisis of 2008. First, it will discuss European Union (EU)-level regulation that applies to the UK as an EU member state. Second, it will discuss... View Details
Keywords: Financial Crisis; Investment Funds; Governing Rules, Regulations, and Reforms; Laws and Statutes; Business and Government Relations; Financial Services Industry; European Union; United Kingdom
Pozen, Robert C., and Melissa Anne Hammerle. "Note: Regulation of Hedge Fund Managers in the U.K. Before and After the Global Financial Crisis." Harvard Business School Background Note 311-014, July 2010. (Revised June 2012.)
- 2012
- Chapter
Environmental Federalism in the European Union and the United States
By: David Vogel, Michael W. Toffel, Diahanna Post and Nazli Z. Uludere Aragon
The United States (US) and the European Union (EU) are federal systems in which the responsibility for environmental policy-making is divided or shared between the central government and the (member) states. The attribution of decision-making power has important policy... View Details
Keywords: Natural Environment; Policy; Government and Politics; Governing Rules, Regulations, and Reforms; European Union; United States
Vogel, David, Michael W. Toffel, Diahanna Post, and Nazli Z. Uludere Aragon. "Environmental Federalism in the European Union and the United States." Chap. 11 in A Handbook of Globalisation and Environmental Policy. 2nd ed. Edited by Frank Wijen, Kees Zoeteman, Jan Pieters, and Paul van Seters, 321–361. Cheltenham, UK, 2012.
- 20 Jun 2023
- Cold Call Podcast
Elon Musk’s Twitter Takeover: Lessons in Strategic Change
- 2018
- Working Paper
UK Competitiveness after Brexit
On June 23rd, 2016 52% of UK voters opted to put their country on the path to leave the European Union by March 29, 2019. This result was a surprise to many, and went against the advice of the vast majority of economic experts and business leaders. Two years later, and... View Details
Porter, Michael E. "UK Competitiveness after Brexit." Harvard Business School Working Paper, No. 19-029, September 2018. (Revised January 2019.)
- January 2020
- Supplement
Brexit: A Withdrawal Agreement? — Boris Johnson
By: Laura Alfaro and Sarah Jeong
The UK was due to leave the EU in March 2019 after a referendum vote in June 2016. Following additional extensions and multiple failed attempts to reach an agreement with Parliament, Theresa May stepped down as Conservative Party leader and was replaced by Boris... View Details
Alfaro, Laura, and Sarah Jeong. "Brexit: A Withdrawal Agreement? — Boris Johnson." Harvard Business School Supplement 320-081, January 2020.
- December 2006 (Revised March 2007)
- Case
Common Agricultural Policy and the Future of French Farming
By: J. Gunnar Trumbull, Vincent Marie Dessain and Elena Corsi
Presents the history and evolution of the EU Common Agricultural Policy, from early price supports to the 2003 decision to "decouple" payments to European farmers. Explores the logic behind agricultural supports, with a focus on the economic, political, and cultural... View Details
Keywords: History; Agreements and Arrangements; Price; Policy; Trade; Agribusiness; Agriculture and Agribusiness Industry; France; European Union
Trumbull, J. Gunnar, Vincent Marie Dessain, and Elena Corsi. "Common Agricultural Policy and the Future of French Farming." Harvard Business School Case 707-027, December 2006. (Revised March 2007.)
- October 2021 (Revised November 2022)
- Case
The 2012 Spanish Labor Reform: Lifting All Boats, or Leveling Down?
By: Vincent Pons, Rafael Di Tella, Santiago Botella and Elena Corsi
Since 1978, Spain had struggled to control unemployment. The country’s labor law was protective of employees hired long-term and companies used temporary contracts as buffers. In 2012, amid economic recession and a 23.6% unemployment rate, a center-right government of... View Details
Keywords: COVID-19 Pandemic; Labor Market; Unemployment; Recession; Globalized Markets and Industries; Government Legislation; International Relations; Working Conditions; Employment; Labor Unions; Contracts; Social Issues; Public Opinion; Governing Rules, Regulations, and Reforms; Spain; European Union
Pons, Vincent, Rafael Di Tella, Santiago Botella, and Elena Corsi. "The 2012 Spanish Labor Reform: Lifting All Boats, or Leveling Down?" Harvard Business School Case 722-008, October 2021. (Revised November 2022.)
- 2021
- Article
The Sustainable Corporate Governance Initiative in Europe
By: Mark Roe, Holger Spamann, Jesse M. Fried and Charles C.Y. Wang
In July 2020, the European Commission published the “Study on directors’ duties and sustainable corporate governance” by EY. The Report purports to find evidence of debilitating short-termism in EU corporate governance and recommends many changes to support sustainable... View Details
Keywords: Short-termism; Hedge Funds; Shareholder Activism; Securities Regulation; Agency Costs; Political Economy; Payouts; Repurchases; Corporate Governance; Investment Funds; Investment Activism; Research and Development; Investment; European Union
Roe, Mark, Holger Spamann, Jesse M. Fried, and Charles C.Y. Wang. "The Sustainable Corporate Governance Initiative in Europe." Yale Journal on Regulation Bulletin 38 (2021): 133–153.
- Article
Vertical Merger, Collusion, and Disruptive Buyers
By: Volker Nocke and Lucy White
In a repeated game setting of a vertically related industry, we study the collusive effects of vertical mergers. We show that any vertical merger facilitates upstream collusion, no matter how large (in terms of capacity or size of product portfolio) the integrated... View Details
Nocke, Volker, and Lucy White. "Vertical Merger, Collusion, and Disruptive Buyers." International Journal of Industrial Organization 28, no. 4 (July 2010): 350–354.
- November 2010 (Revised February 2013)
- Supplement
Energy Security in Europe (B): The Southern Corridor
By: Rawi E. Abdelal and Sogomon Tarontsi
Nabucco natural gas pipeline, initiated by a group of European energy companies, was intended to connect the broad gas-rich region of the Middle East and Central Asia to Europe for the first time, which would diversify supply sources. At the same time, an... View Details
Keywords: Non-Renewable Energy; Governing Rules, Regulations, and Reforms; Policy; Distribution; Business and Government Relations; Conflict and Resolution; Energy Industry; Russia; European Union
Abdelal, Rawi E., and Sogomon Tarontsi. "Energy Security in Europe (B): The Southern Corridor." Harvard Business School Supplement 711-033, November 2010. (Revised February 2013.)
- March 2014 (Revised January 2025)
- Case
Ukraine: On the Border of Europe and Eurasia
By: Rawi Abdelal, Rafael M. Di Tella, Sogomon Tarontsi and Lavinia Teodorescu
In the fall of 2013, the people of Ukraine disagreed passionately whether their country should intensify ties with the European Union or Russia. After President Yanukovych rejected the free trade agreement with the EU in November, thousands of Ukrainians peacefully... View Details
Keywords: Decision Making; Cost vs Benefits; Decision Choices and Conditions; Decisions; Forecasting and Prediction; Judgments; Geopolitical Units; Country; Globalization; Cross-Cultural and Cross-Border Issues; Global Strategy; Globalized Economies and Regions; Globalized Markets and Industries; Government and Politics; International Relations; National Security; Growth and Development; History; Europe; Ukraine; European Union; Russia
Abdelal, Rawi, Rafael M. Di Tella, Sogomon Tarontsi, and Lavinia Teodorescu. "Ukraine: On the Border of Europe and Eurasia." Harvard Business School Case 714-042, March 2014. (Revised January 2025.)
- November 2009
- Article
Finding Missing Markets (and a Disturbing Epilogue): Evidence from an Export Crop Adoption and Marketing Intervention in Kenya
By: Nava Ashraf, Xavier Gine and Dean Karlan
Farmers may grow crops for local consumption despite more profitable export options. DrumNet, a Kenyan NGO that helps small farmers adopt and market export crops, conducted a randomized trial to evaluate its impact. DrumNet services increased production of export crops... View Details
Keywords: Export Crop; Field Experiment; Food Safety Standards; Plant-Based Agribusiness; Trade; Profit; Marketing; Standards; Failure; Non-Governmental Organizations; Agriculture and Agribusiness Industry; Kenya; European Union
Ashraf, Nava, Xavier Gine, and Dean Karlan. "Finding Missing Markets (and a Disturbing Epilogue): Evidence from an Export Crop Adoption and Marketing Intervention in Kenya." American Journal of Agricultural Economics 91, no. 4 (November 2009): 973–990.
- March 2007 (Revised March 2010)
- Case
Rovna Dan: The Flat Tax in Slovakia
By: Laura Alfaro, Rafael M. Di Tella, Ane Damgaard Jensen and Vincent Marie Dessain
Explores the tax policy choices made by Slovakia and the impact of reforms. Set in 2006, looks at the decision facing new Prime Minister Robert Fico as he faces the public's "reform fatigue." Traces the development of tax and fiscal policies since Slovakia's... View Details
Keywords: Investment; Governing Rules, Regulations, and Reforms; Policy; Taxation; Labor; Welfare; Slovakia
Alfaro, Laura, Rafael M. Di Tella, Ane Damgaard Jensen, and Vincent Marie Dessain. "Rovna Dan: The Flat Tax in Slovakia." Harvard Business School Case 707-043, March 2007. (Revised March 2010.)
- July 2019
- Article
Market Reaction to Mandatory Nonfinancial Disclosure
By: Jody Grewal, Edward J. Riedl and George Serafeim
We examine the equity market reaction to events associated with the passage of a directive in the European Union (EU) mandating increased nonfinancial disclosure. These disclosures relate to firms’ environmental, social, and governance (ESG) performance and would be... View Details
Keywords: Nonfinancial Information; Nonfinancial Performance; ESG; ESG (Environmental, Social, Governance) Performance; Investor Behavior; Disclosure; Disclosure Regulation; Regulation; Sustainability; Corporate Performance; Information; Corporate Disclosure; Governing Rules, Regulations, and Reforms; Performance; Environmental Sustainability; Corporate Governance; Outcome or Result
Grewal, Jody, Edward J. Riedl, and George Serafeim. "Market Reaction to Mandatory Nonfinancial Disclosure." Management Science 65, no. 7 (July 2019): 3061–3084.
- October 2024
- Case
EU's Digital Services Act and Digital Markets Act
By: David B. Yoffie and Sarah von Bargen
Since the early 2020s, the EU began passing regulations on digital platforms and their marketplaces. One of the first was the Digital Services Act package, consisting of the Digital Services Act (DSA) and the Digital Markets Act (DMA). These regulations were focused on... View Details
Keywords: Digital Platforms; E-commerce; Governing Rules, Regulations, and Reforms; Cybersecurity; European Union
Yoffie, David B., and Sarah von Bargen. "EU's Digital Services Act and Digital Markets Act." Harvard Business School Case 725-372, October 2024.
- 2017
- Chapter
The Swedish Competitiveness Scorecard 2017
By: Christian H.M. Ketels
The Swedish Competitiveness Scorecard assesses Sweden's current competitiveness across a broad range of indicators, applying an impact logic from competitiveness fundamentals to productivity and prosperity outcomes. On these indicators Sweden is compared to a peer... View Details
Ketels, Christian H.M. "The Swedish Competitiveness Scorecard 2017." Chap. 2 in Swedish Economic Forum Report 2017: Svensk konkurrenskraft, edited by Johan Eklund and Per Thulin, 18–46. Sweden: Swedish Entrepreneurship Forum, 2017, Swedish ed.
- September 2006 (Revised November 2008)
- Case
Supergrid
Supergrid is a mammoth wind-power development scheme for Europe, recently proposed by Airtricity. This firm, founded in 1997, is a fast-growing power-development company focused on wind. Already having built about 600 megawatts of wind turbines in Scotland and Ireland,... View Details
Keywords: Energy Generation; Renewable Energy; Entrepreneurship; Performance Capacity; Business and Government Relations; Environmental Sustainability; Energy Industry; Europe; United States
Vietor, Richard H.K. "Supergrid." Harvard Business School Case 707-016, September 2006. (Revised November 2008.)
- Research Summary
Other research activities
Apart from my dissertation research on the EU ETS, I am interested in topics such as foreign direct investment, global strategy, institutions and sustainability. I am currently working with several faculty members at Harvard Business School on issues ranging from... View Details