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2020
Article

Fast Exact Matrix Completion: A Unified Optimization Framework for Matrix Completion

By: Dimitris Bertsimas and Michael Lingzhi Li

We formulate the problem of matrix completion with and without side information as a non-convex optimization problem. We design fastImpute based on non-convex gradient descent and show it converges to a global minimum that is guaranteed to recover closely the... View Details

Keywords: Mathematical Methods

August 2022 (Revised March 2025)
Case

Wasabi Technologies (A)

By: N. Louis Shipley and Mel Martin

After launching a successful hot cloud storage company, Founder and CEO David Friend is ready to scale the venture rapidly. Wasabi Technologies had focused primarily on direct sales, but an opportunity to pivot to channel sales was on the horizon. The company’s major... View Details

Keywords: Direct Sales; Channel Sales; Information Management; Sales; Product Development; Growth and Development Strategy; Business Divisions; Information Technology Industry; United States

July 15, 2022
Article

Does Elon Musk Have a Strategy?

By: Andy Wu and Goran Calic

Does Elon Musk have a strategy? Or is he just out there winging it? Looking at Musk’s many companies, common themes stand out across three areas: what fits into his vision for problems to solve, how he designs an organization as a solution to those problems, and why he... View Details

Keywords: Technology; Strategy; Vision; Resources; Organization; Platform; Closed Systems; Leadership; Complexity; Organizational Design; Vertical Integration; Problems and Challenges; Success; Auto Industry; Aerospace Industry; Media and Broadcasting Industry; Energy Industry

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March 2010 (Revised January 2012)
Case

Microsoft's IP Ventures

By: Josh Lerner and Ann Leamon

Microsoft's IP Ventures program, through which Microsoft spun out promising but unused technologies into new companies, is a new approach to corporate venture capital. The program provides "IP for equity" and has proven very successful in achieving its main... View Details

Keywords: Corporate Entrepreneurship; Venture Capital; Equity; Financing and Loans; Investment; Intellectual Property; Rights; Software; Washington (state, US)

January 2009 (Revised October 2012)
Case

Semiconductor Manufacturing International Corporation: 'Reverse BOT'

Semiconductor Manufacturing International Corporation (SMIC) is executing a strategy that leverages the desires of municipalities in China to build clusters of high technology companies. By partnering with those cities to build new semiconductor fabs that SMIC would... View Details

Keywords: Growth and Development Strategy; Industry Clusters; Infrastructure; State Ownership; Business and Community Relations; Semiconductor Industry; China

January 2025
Case

The Vision of Wonder

By: Michael S. Kaufman and Daniella Bertolotti

Serial entrepreneur Marc Lore successfully disrupted three marketplaces—trading cards, diapers (founded Diapers.com and eventually sold to Amazon for more than $500 million) and ecommerce (founded Jet.com competing directly with Amazon and eventually sold to Walmart... View Details

Keywords: Mergers and Acquisitions; Business Exit or Shutdown; Entrepreneurship; Disruptive Innovation; Growth and Development Strategy; Food and Beverage Industry; Technology Industry

2023
Article

Comparison of COVID-19 Hospitalization Costs across Care Pathways: A Patient-level Time-driven Activity-based Costing Analysis in a Brazilian Hospital

By: Ricardo Bertoglio Cardoso, Miriam Allein Zago Marcolino, Milena Soriano Marcolino, Camila Felix Fortis, Leila Beltrami Moreira, Ana Paula Coutinho, Nadine Oliveira Clausell, Junaid Nabi, Robert S. Kaplan, Ana Paula Beck da Silva Etges and Carisi Anne Polanczyk

The COVID-19 pandemic raised awareness of the need to better understand where and how patient-level costs are incurred in health care organizations. This study used time-driven activity-based costing to estimate COVID-19 patient-level hospital costs in a Brazilian... View Details

Keywords: Health Care and Treatment; Cost; Health Industry; Brazil

2012
Case

Robert Whelan and the Student Loan Crisis (A)

By: Rosabeth M. Kanter and Olivia Leskinen

Robert Whelan and the Student Loan Crisis (A) 2009 AL Fellow Bob Whelan developed an idea with partners that was a seed before his fellowship year and seemed to address a significant national challenge - college financing - with a creative concept and experience from... View Details

January 2016
Case

Savannah Informatics

By: Kevin Schulman

John Muthee and Justus Paul are recent graduates of medical school and a unique program in clinical informatics. They return to Nairobi, Kenya with a passion to make a difference in their community. They have a team they know well, but need to find a project concept... View Details

Keywords: Information Systems; Entrepreneurship; Strategy; Kenya; Africa

October 2014 (Revised January 2015)
Background Note

Advanced Leadership in Public Education: Tools for Tackling Change from Outside the Building In

By: Rosabeth Moss Kanter and Pamela Yatsko

If you want to create change in public education but are not a school principal or other traditional public education leader, what do you need to do? This long, integrated background note examines the inspiring models and stories of individuals who are improving... View Details

Keywords: Education Reform; Advanced Leadership Initiative; Social Issues; Social Entrepreneurship; Education; Leadership; Education Industry; United States

July 2013 (Revised July 2013)
Case

Powerchip Semiconductor Corporation

By: Willy Shih and Chen-Fu Chien

Powerchip Semiconductor Corporation has a horizontal firm structure in an industry that is predominantly organized vertically. While it has been successful in up markets, in the current down market its strategic rationale was being tested. As a capital-intensive... View Details

Keywords: Industry Structures; Organizational Structure; Partners and Partnerships; Competition; Horizontal Integration; Vertical Integration; Semiconductor Industry; Taiwan

03 Jan 2014
News

Supply, Demand, Heart Attacks

15 Jul 2022
News

Does Elon Musk Have a Strategy?

2025
Book

The Experimentation Machine: Finding Product–Market Fit in the Age of AI

By: Jeffrey J. Bussgang

Leverage AI to be a 10x Founder

Today’s most successful founders know that the startups that learn the fastest will win. In The Experimentation Machine, I reveal how AI is transforming the way startups find product-market fit and scale.... View Details

Keywords: AI; Founder; Startup; AI and Machine Learning; Technology Adoption; Business Startups; Entrepreneurship; Market Entry and Exit

June 2019
Article

Social Risk, Fiscal Risk, and the Portfolio of Government Programs

By: Samuel G. Hanson, David S. Scharfstein and Adi Sunderam

We develop a model of government portfolio choice in which a benevolent government chooses the scale of risky projects in the presence of market failures and tax distortions. These two frictions generate motives to manage social risk and fiscal risk. Social risk... View Details

Keywords: Risk Management; Government and Politics; Programs

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November 2012 (Revised July 2012)
Supplement

Andrew Sullivan and Faraway Ltd (C): Anthony Pierce of John Lewis

By: Frank V. Cespedes and Alex Godden

The "Andrew Sullivan and Faraway Ltd" case series focuses on entrepreneurial selling, and is based on an older case study, "Deaver Brown and Cross River Inc." (9-394-042). It concerns two entrepreneurs, Andrew Sullivan and Hope Abasi, who have designed an innovative... View Details

Keywords: Entrepreneurship; Management; Sales; Marketing; Consumer Products Industry; United Kingdom

19 Jun 2020
News

Inflation Is Higher Than the Official Numbers

2022
Chapter

Luxury Tourism and Environmentalism

By: Geoffrey Jones

This chapter examines the evolution of luxury tourism and its environmental impact. Whilst mass tourism is widely seen as environmentally damaging, the impact of luxury tourism is nuanced. During the first stage of the growth in the nineteenth century, the numbers of... View Details

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September 2011
Supplement

Narayana Hrudayalaya Heart Hospital

By: Tarun Khanna and Tanya Bijlani

Narayana Hrudayalaya (NH) is one of the world's busiest heart hospitals, where surgeons perform 30-35 complex cardiac surgeries daily. With an average cost of $1,800 per surgery, the hospital treats patients at affordable prices, and does not turn away even the poorest... View Details

Keywords: Buildings and Facilities; Experience and Expertise; Cost Management; Insurance; Health Care and Treatment; Resource Allocation; Time Management; Emerging Markets; Infrastructure; Cooperative Ownership; Quality; Social Enterprise; Health Industry; Karnataka

2011
Working Paper

Fractionalization and the Municipal Bond Market

We study the impact of ethnic and religious fractionalization on the U.S. municipal debt market and find that issuers from more ethnically and religiously fractionalized counties pay higher yields on their municipal debt. A two standard deviation increase in religious... View Details

Keywords: Ethnicity Characteristics; Bonds; Financial Markets; Investment Return; Geographic Location; City; Religion; United States

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