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- Article
The Impact of Penalties for Wrong Answers on the Gender Gap in Test Scores
By: Katherine B. Coffman and David Klinowski
Multiple-choice exams play a critical role in university admissions across the world. A key question is whether imposing penalties for wrong answers on these exams deters guessing from women more than men, disadvantaging female test-takers. We consider data from a... View Details
- 2021
- Working Paper
Elusive Safety: The New Geography of Capital Flows and Risk
By: Laura Alfaro, Ester Faia, Ruth Judson and Tim Schmidt-Eisenlohr
A confidential dataset with industry-level disaggregation of U.S. cross-border claims and liabilities, shows U.S. securities to be increasingly intermediated by tax-haven-financial-centers (THFC) and less regulated funds. These securities are risky, in... View Details
- April 2020
- Article
Technological Leadership (de)Concentration: Causes in Information and Communication Technology Equipment
By: Yasin Ozcan and Shane Greenstein
Using patent data from 1976 to 2010 as indicators of inventive activity, we determine the concentration level of where inventive ideas originate and then examine how and why those concentrations change over time. The analysis finds pervasive deconcentration in every... View Details
- March 2020
- Case
Girls Who Code
By: Brian Trelstad, Amy Klopfenstein and Olivia Hull
In 2012, Reshma Saujani founded Girls Who Code (GWC) with the mission of closing the technology (tech) industry’s gender gap. While GWC offered coding education programs to middle- and high-school-aged girls, the organization also sought to alter cultural stereotypes... View Details
- March 2020 (Revised January 2023)
- Case
Nadine Vogel: Transforming the Marketplace, Workplace, and Workforce for People with Disabilities
By: Lakshmi Ramarajan, Hannah Riley-Bowles and Michael Norris
In 2019, Nadine Vogel, founder and CEO of Springboard Consulting, a firm that worked with Fortune 500 companies on issues related to disability and their workforce, faced the decision of the best path forward to grow her small company. Should she build more and better... View Details
- March 2020
- Article
Do Managers Matter? A Natural Experiment from 42 R&D Labs in India
By: Prithwiraj Choudhury, Tarun Khanna and Christos A. Makridis
We exploit plausibly exogenous variation in the staggered entry of new managers into India’s 42 public R&D labs between 1994 and 2006 to study how alignment between the CEO and middle-level managers affect research productivity. We show that the introduction of new lab... View Details
- Working Paper
Rebates in the Pharmaceutical Industry: Evidence from Medicines Sold in Retail Pharmacies in the U.S.
By: Pragya Kakani, Michael Chernew and Amitabh Chandra
Rising list prices are often used to illustrate the burden of prescription drug spending, but payers routinely negotiate rebates from manufacturers that generate differences between list and net prices. List prices are easily available and affect patient cost-sharing,... View Details
- January 2020 (Revised July 2020)
- Supplement
MoviePass: The 'Get Big Fast' Strategy
By: Benjamin C. Esty and Daniel Fisher
In August 2017, MoviePass dramatically lowered its subscription price from $50 per month to just $10 for up to one movie per day. The idea was to rapidly scale the business to the point where they could generate incremental revenue streams form related businesses... View Details
Keywords: Market Entry; Growth Strategy; Profit Vs. Growth; Subscription Business; Cash Burn; Data Analytics; Get-big-fast; Buyer Power; Strategy Implementation; Movie Industry; Racing; Business Strategy; Value Creation; Consolidation; Cash Flow; Growth Management; Business Startups; Entrepreneurship; Disruptive Innovation; Mobile Technology; Motion Pictures and Video Industry; Entertainment and Recreation Industry; Advertising Industry; Information Industry; United States
- 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
- December 2019
- Case
Bill & Melinda Gates Foundation: Shaping the Vaccine Manufacturing Ecosystem (Abridged)
By: Willy Shih
This case describes the efforts of the Bill & Melinda Gates Foundation to lower the cost of producing vaccines to prevent polio infections. It is an abridged version of HBS Case No. 620-021 with less emphasis on comparison between traditional and the new compact... View Details
- 2019
- Working Paper
The Impact of the General Data Protection Regulation on Internet Interconnection
By: Ran Zhuo, Bradley Huffaker, KC Claffy and Shane Greenstein
The Internet comprises thousands of independently operated networks, where bilaterally negotiated interconnection agreements determine the flow of data between networks. The European Union’s General Data Protection Regulation (GDPR) imposes strict restrictions on... View Details
- October 2019
- Case
Feeling Machines: Emotion AI at Affectiva
By: Shane Greenstein and John Masko
In 2016, Affectiva—a Boston-based emotion AI software company with a long track record of building emotion-sensing software for market research—had attempted to expand into new verticals by releasing a mobile software development kit (SDK) that downloaders could adapt... View Details
- October 2019
- Case
Agility Africa
By: Juan Alcacer, Caroline M. Elkins and Esel Çekin
This case illustrates the challenge and opportunities that firms face when developing and executing new business models in high-risk, low-infrastructure, low-trust countries. It features a global logistics group, Agility, that aimed to become the leader in supplying... View Details
- September 2019 (Revised May 2020)
- Case
Keroche (A): Fighting for Share in the Kenyan Alcoholic Drinks Market
By: Ramon Casadesus-Masanell and Pippa Tubman Armerding
This case discusses the challenges faced by Kenyan alcoholic drinks producer Keroche Industries Limited in 2003, when the Kenyan government accused the company of manufacturing and selling substandard alcoholic drinks, revoked its liquor licenses, and shut down its... View Details
Keywords: Keroche; Alcohol; Wine; Manufacturing; Informal Market; Regulation; Illicit; Illegal; Shutdown; Factory; Low-income Consumers; Multinational; Local; Government; Allegations; Accusations; Negative Press; EABL; Tusker; Beer; SAB; Chang'aa; Naivasha; Rift Valley; East Africa; Lawsuit; Legal Battle; Business Ventures; Business Exit or Shutdown; Business Growth and Maturation; Business Startups; Production; Safety; Quality; Distribution; Small Business; Family Business; Crime and Corruption; Customer Focus and Relationships; Decisions; Income; Demographics; Geographic Scope; Geographic Location; Goods and Commodities; Government Legislation; Growth and Development; Business History; Lawsuits and Litigation; Laws and Statutes; Lawfulness; Goals and Objectives; Consumer Behavior; Market Entry and Exit; Problems and Challenges; Social Issues; Poverty; Strategy; Competition; Entrepreneurship; Manufacturing Industry; Food and Beverage Industry; Kenya; Nairobi; Africa
- September 2019
- Supplement
Keroche (B): Considering Entry into the Kenyan Beer Market
By: Ramon Casadesus-Masanell and Pippa Tubman Armerding
This case discusses the situation of the Kenyan alcoholic drinks producer Keroche in July 2004, when co-founder Tabitha Karanja was debating whether to enter the Kenyan beer market. Doing so would mean direct competition with the multinational EABL in an industry and... View Details
Keywords: Keroche; Alcohol; Alcoholic Drinks; Alcoholic Beverages; Beverages; Drinks; Wine Industry; Wine; Fortified Wine; Viena; Beer; Beer Market; Manufacturing; Production Capacity; Capacity; Growth; Regulated; Unregulated; Informal; Informal Market; Regulation; Illicit; Illegal; Substandard; Dangerous; Shutdown; Factory; Safe; Affordable; Low-income Consumers; Business Growth and Maturation; Business Startups; Production; Investment; Safety; Quality; Small Business; Family Business; Crime and Corruption; Customer Focus and Relationships; Decisions; Income; Demographics; Geographic Scope; Geographic Location; Goods and Commodities; Government Legislation; Growth and Development; Business History; Lawsuits and Litigation; Laws and Statutes; Lawfulness; Goals and Objectives; Consumer Behavior; Market Entry and Exit; Problems and Challenges; Social Issues; Poverty; Strategy; Competition; Entrepreneurship; Marketing; Manufacturing Industry; Food and Beverage Industry; Kenya; Nairobi; Africa
- September 2019 (Revised May 2020)
- Supplement
Keroche (C): The Excise Tax Increase
By: Ramon Casadesus-Masanell and Pippa Tubman Armerding
This case discusses the Kenyan government’s decision to increase excise taxes on wines in 2007. The tax increase would cause an average increase in price of 367% on Keroche’s fortified wines. Meanwhile, Keroche’s competitor EABL had effectively lobbied the government... View Details
Keywords: Keroche; Alcohol; Alcoholic Drinks; Alcoholic Beverages; Beverages; Drinks; Wine Industry; Wine; Fortified Wine; Business Ventures; Business Exit or Shutdown; Business Growth and Maturation; Business Startups; Small Business; Family Business; Crime and Corruption; Customer Focus and Relationships; Decisions; Income; Demographics; Geographic Scope; Geographic Location; Goods and Commodities; Government Legislation; Growth and Development; Business History; Lawsuits and Litigation; Laws and Statutes; Lawfulness; Goals and Objectives; Consumer Behavior; Market Entry and Exit; Problems and Challenges; Safety; Social Issues; Poverty; Strategy; Competition; Entrepreneurship; Manufacturing Industry; Food and Beverage Industry; Kenya; Nairobi; Africa
- September 2019 (Revised May 2020)
- Supplement
Keroche (D): Transforming the Core Business
By: Ramon Casadesus-Masanell and Pippa Tubman Armerding
This case describes Keroche co-founder Tabitha Karanja’s decision to exit the wine business following the Kenyan government’s 2007 increase in excise taxes on wine. In August 2007, Keroche introduced the vodka drink Viena Ice as a replacement for its fortified wines,... View Details
Keywords: Keroche; Alcohol; Alcoholic Beverages; Alcoholic Drinks; Beverages; Drinks; Wine Industry; Wine; Fortified Wine; Viena; Viena Ice; Beer; Beer Market; Premium Beer; Manufacturing; Summit Lager; Business Ventures; Business Exit or Shutdown; Business Growth and Maturation; Business Startups; Small Business; Family Business; Crime and Corruption; Customer Focus and Relationships; Decisions; Income; Demographics; Geographic Scope; Geographic Location; Goods and Commodities; Government Legislation; Growth and Development; Business History; Lawsuits and Litigation; Laws and Statutes; Lawfulness; Goals and Objectives; Consumer Behavior; Market Entry and Exit; Problems and Challenges; Safety; Social Issues; Poverty; Strategy; Competition; Manufacturing Industry; Food and Beverage Industry; Kenya; Nairobi; Africa
- September 2019 (Revised May 2020)
- Supplement
Keroche (E): Considering Additional Capacity
By: Ramon Casadesus-Masanell and Pippa Tubman Armerding
This case describes Keroche’s growth after entering the beer business in 2008. Although the company was operating at full capacity and not able to fulfill all of its orders, Tabitha Karanja had set a goal of growing Keroche’s share of the Kenyan beer market from... View Details
Keywords: Keroche; Alcohol; Alcoholic Beverages; Beer; Beer Market; Premium Beer; Manufacturing; Production; Production Capacity; Capacity; Business Ventures; Business Exit or Shutdown; Business Growth and Maturation; Business Startups; Small Business; Family Business; Crime and Corruption; Customer Focus and Relationships; Decisions; Income; Demographics; Geographic Scope; Geographic Location; Goods and Commodities; Government Legislation; Growth and Development; Business History; Lawsuits and Litigation; Laws and Statutes; Lawfulness; Goals and Objectives; Consumer Behavior; Market Entry and Exit; Problems and Challenges; Safety; Social Issues; Poverty; Strategy; Competition; Entrepreneurship; Investment; Financing and Loans; Manufacturing Industry; Food and Beverage Industry
- September 2019 (Revised May 2020)
- Supplement
Keroche (F): Future Growth Plans
By: Ramon Casadesus-Masanell and Pippa Tubman Armerding
This case describes Keroche co-founder Tabitha Karanja’s 2012 decision to invest in additional production capacity. In November 2012, with a loan from Barclay’s bank, Keroche began constructing a new state-of-the-art beer brewery using German technology. The new plant,... View Details
Keywords: Keroche; Alcohol; Aloholic Beverages; Beer; Production Capacity; Growth; Business Ventures; Business Exit or Shutdown; Business Growth and Maturation; Business Startups; Small Business; Family Business; Crime and Corruption; Customer Focus and Relationships; Decisions; Income; Demographics; Geographic Scope; Geographic Location; Goods and Commodities; Government Legislation; Growth and Development; Business History; Lawsuits and Litigation; Laws and Statutes; Lawfulness; Goals and Objectives; Consumer Behavior; Market Entry and Exit; Problems and Challenges; Safety; Social Issues; Poverty; Strategy; Competition; Entrepreneurship; Manufacturing Industry; Food and Beverage Industry; Kenya; Nairobi; Africa
- September 2019
- Case
Bill & Melinda Gates Foundation: Shaping the Vaccine Manufacturing Ecosystem
By: Willy C. Shih
Vaccines for children has been a long-standing focus for the Bill & Melinda Gates Foundation, and its critical role in public health made its production an important economic and political issue. This case describes the Foundation's investment in a breakthrough vaccine... View Details