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- May 2025
- Case
A Decade of Corporate Governance Reform in Japan (2013-2023)
By: Charles C.Y. Wang and Akiko Kanno
Wang, Charles C.Y., and Akiko Kanno. "A Decade of Corporate Governance Reform in Japan (2013-2023)." Harvard Business School Case 125-088, May 2025.
- March 2025
- Case
Silicon Valley Bank: Gone in 36 Hours
This case examines factors contributing to the collapse of Silicon Valley Bank (SVB) in March 2023, an event as unpredicted as it was quick. SVB funded nearly half of all U.S. venture-backed startups and at the end of 2022 held $173 billion in deposits, largely... View Details
Keywords: Accounting Standards; Bank Runs; Financial Accounting; Financial Reporting; Social Media; Banks and Banking; Financing and Loans; Investment Portfolio; Interest Rates; Debt Securities; Risk and Uncertainty; Financial Statements; Risk Management; Failure; Fair Value Accounting; Credit; Corporate Governance; Financial Services Industry; Banking Industry; United States
Kang, Jung Koo, Krishna G. Palepu, Charles C.Y. Wang, and David Lane. "Silicon Valley Bank: Gone in 36 Hours." Harvard Business School Case 125-094, March 2025.
- 2025
- Working Paper
Centralized Governance in Decentralized Organizations
By: Lin William Cong, Daniel Rabetti, Charles C.Y. Wang and Yu Yan
We systematically document governance centralization in decentralized autonomous organizations (DAOs) and study its drivers and economic implications. Using multiple data sources and granular on-chain transactional data, we compare our findings to those in corporate... View Details
Cong, Lin William, Daniel Rabetti, Charles C.Y. Wang, and Yu Yan. "Centralized Governance in Decentralized Organizations." Working Paper, March 2025.
- February 2025 (Revised March 2025)
- Case
Accounting for Bitcoin at Block
By: Charles C.Y. Wang, Seil Kim and Sa-Pyung Sean Shin
Abstract: This case explores Block Inc.'s accounting practices for Bitcoin transactions and their impact on financial reporting. Following a 10% stock price drop after missing revenue estimates in Q3 2024, Block faced scrutiny over its Bitcoin-driven revenue model.... View Details
- February 2025 (Revised May 2025)
- Case
Align Partners and SM Entertainment: Korean Shareholder Activism Meets K-Pop (A)
By: Charles C.Y. Wang and Billy Chan
For years, institutional investors had experienced very limited success in influencing the management of listed companies through shareholder activist campaigns in Korea. The common practice of circular ownership and public resentment toward foreign shareholder... View Details
Keywords: Financial Reporting; Public Equity; Stocks; Investment Activism; Music Entertainment; Corporate Governance; Success; Business and Shareholder Relations; Entertainment and Recreation Industry; South Korea
Wang, Charles C.Y., and Billy Chan. "Align Partners and SM Entertainment: Korean Shareholder Activism Meets K-Pop (A)." Harvard Business School Case 125-065, February 2025. (Revised May 2025.)
- February 2025
- Supplement
Align Partners and SM Entertainment: Korean Shareholder Activism Meets K-Pop (B)
By: Charles CY Wang and Billy Chan
For years, institutional investors had experienced very limited success in influencing the management of listed companies through shareholder activist campaigns in Korea. The common practice of circular ownership and public resentment toward foreign shareholder... View Details
- 2024
- Working Paper
Scaling Core Earnings Measurement with Large Language Models
By: Matthew Shaffer and Charles CY Wang
We study the application of large language models (LLMs) to the estimation of core earnings, i.e., a firm's persistent profitability from its core business activities. This construct is central to investors' assessments of economic performance and valuations. However,... View Details
Keywords: Large Language Models; AI and Machine Learning; Accounting; Profit; Corporate Disclosure; Analytics and Data Science; Measurement and Metrics
Shaffer, Matthew, and Charles CY Wang. "Scaling Core Earnings Measurement with Large Language Models." Working Paper, November 2024.
- October 2024
- Supplement
Boba Fete Tea Shop – Instructor Worksheet
By: Charles C.Y. Wang and Miles Mrowiec
- October 2024
- Supplement
Boba Fete Tea Shop – Student Worksheet
By: Charles C.Y. Wang and Miles Mrowiec
- October 2024
- Case
Boba Fete Tea Shop
By: Charles C.Y. Wang and Miles Mrowiec
Wang, Charles C.Y., and Miles Mrowiec. "Boba Fete Tea Shop." Harvard Business School Case 125-042, October 2024.
- September 2024 (Revised March 2025)
- Supplement
Wemade: (Re)Establishing Trust in Blockchain Games (B)
By: Jung Koo Kang, Charles C.Y. Wang, David Allen and Kwangmoon So
This supplement reviews Wemade's efforts to rebuild confidence in its business after its WEMIX coin was delisted from the major South Korean cryptocurrency exchanges on December 8, 2022. It outlines Wemade's strategy of transparency, which included partnerships with... View Details
Keywords: Blockchain; Cryptocurrency; Crypto Economy; Accounting; Financial Reporting; Revenue Recognition; Games, Gaming, and Gambling; Corporate Disclosure; Information Technology; Financial Markets; Governance; Accounting Industry; Video Game Industry; South Korea
Kang, Jung Koo, Charles C.Y. Wang, David Allen, and Kwangmoon So. "Wemade: (Re)Establishing Trust in Blockchain Games (B)." Harvard Business School Supplement 125-018, September 2024. (Revised March 2025.)
- June 2024 (Revised March 2025)
- Case
Wemade: (Re)Establishing Trust in Blockchain Games (A)
By: Jung Koo Kang, Charles C.Y. Wang, David Allen and Kwangmoon So
This case explores the fundamental challenges and accounting issues arising from the integration of blockchain technology into traditional business models. It features Wemade, a South Korean online gaming company that has staked its future on blockchain-based games.... View Details
Keywords: Blockchain; Cryptocurrency; Video Games; Accounting; Financial Reporting; Revenue Recognition; Games, Gaming, and Gambling; Corporate Disclosure; Information Technology; Technology Adoption; Accounting Industry; Information Technology Industry; Video Game Industry; South Korea
Kang, Jung Koo, Charles C.Y. Wang, David Allen, and Kwangmoon So. "Wemade: (Re)Establishing Trust in Blockchain Games (A)." Harvard Business School Case 124-025, June 2024. (Revised March 2025.)
- May 2024
- Case
A New Aiera for Equity Research
By: Joseph Pacelli, Charles CY Wang and James Barnett
Aiera (pronounced “era”) co-founder and CEO Ken Sena considers strategic pathways to growth for the artificial intelligence (AI)-powered platform used to source, verify, and transcribe earnings calls, company presentations, and other corporate events. View Details
- May 9, 2024
- Editorial
Public Companies Are Alive and Well: They’re Fewer in Number but Bigger and More Profitable than Ever Before.
By: Mark J. Roe and Charles C.Y. Wang
Roe, Mark J., and Charles C.Y. Wang. "Public Companies Are Alive and Well: They’re Fewer in Number but Bigger and More Profitable than Ever Before." Wall Street Journal (May 9, 2024), A.13.
- April 2024 (Revised August 2024)
- Teaching Note
Silicon Valley Bank: Gone in 36 Hours
Teaching Note for HBS Case No. 124-001. View Details
- 2024
- Article
Half the Firms, Double the Profits: Public Firms' Transformation, 1996–2022
By: Mark J. Roe and Charles C.Y. Wang
The number of public firms in the United States has halved since the beginning of the twenty-first century, causing consternation among corporate and securities law regulators. The dominant explanations, often advanced by Securities and Exchange commissioners when... View Details
Keywords: Corporate Law; Securities Regulation; Sarbanes-Oxley Act; Concentration Levels; Antitrust; Initial Public Offering; Public Ownership; Private Equity; Venture Capital; Mergers and Acquisitions; Monopoly; United States
Roe, Mark J., and Charles C.Y. Wang. "Half the Firms, Double the Profits: Public Firms' Transformation, 1996–2022." Journal of Law, Finance, and Accounting 8, no. 2 (2024): 211–264.
- December 2023
- Teaching Note
Dan McCrum - Unmasking Wirecard
By: Jonas Heese and Charles C.Y. Wang
Teaching Note for HBS Case No. 123-098. View Details
- June 2023
- Case
Dan McCrum - Unmasking Wirecard
By: Jonas Heese, Charles C.Y. Wang, Tonia Labruyere and Carlota Moniz
Dan McCrum, an investigative journalist for the Financial Times, had spent the past six years fighting to expose German payment processing firm Wirecard. The company had enjoyed years of exponential growth and was viewed by several investors as the poster child of... View Details
Keywords: Crime and Corruption; Accounting; Financial Services Industry; Journalism and News Industry; Europe; United Kingdom; Germany
Heese, Jonas, Charles C.Y. Wang, Tonia Labruyere, and Carlota Moniz. "Dan McCrum - Unmasking Wirecard." Harvard Business School Case 123-098, June 2023.
- January 2023
- Case
Identifying Quality Stocks using Quantitative Screens
By: Charles CY Wang and Johnson Elugbadebo
- August 10, 2022
- Article
The Virtues of Stock Buybacks
By: Jesse M. Fried and Charles C.Y. Wang
Keywords: Stock Buybacks
Fried, Jesse M., and Charles C.Y. Wang. "The Virtues of Stock Buybacks." Wall Street Journal (August 10, 2022).