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- Faculty Publications (108)
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All HBS Web
(1,338)
- Faculty Publications (108)
- Article
Detecting Adversarial Attacks via Subset Scanning of Autoencoder Activations and Reconstruction Error
By: Celia Cintas, Skyler Speakman, Victor Akinwande, William Ogallo, Komminist Weldemariam, Srihari Sridharan and Edward McFowland III
Reliably detecting attacks in a given set of inputs is of high practical relevance because of the vulnerability of neural networks to adversarial examples. These altered inputs create a security risk in applications with real-world consequences, such as self-driving...
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Keywords:
Autoencoder Networks;
Pattern Detection;
Subset Scanning;
Computer Vision;
Statistical Methods And Machine Learning;
Machine Learning;
Deep Learning;
Data Mining;
Big Data;
Large-scale Systems;
Mathematical Methods;
Analytics and Data Science
Cintas, Celia, Skyler Speakman, Victor Akinwande, William Ogallo, Komminist Weldemariam, Srihari Sridharan, and Edward McFowland III. "Detecting Adversarial Attacks via Subset Scanning of Autoencoder Activations and Reconstruction Error." Proceedings of the International Joint Conference on Artificial Intelligence 29th (2020).
- September 2019
- Teaching Plan
Financial Inclusion at Omidyar Network
By: Vikram S. Gandhi and James Barnett
Teaching Note for HBS No. 218-069.
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- 2021
- Working Paper
The Value of Intermediation in the Stock Market
By: Marco Di Maggio, Mark Egan and Francesco Franzoni
We estimate a structural model of broker choice to quantitatively decompose the value that institutional investors attach to broker services. Studying over 300 million institutional equity trades, we find that investors are sensitive to both explicit and implicit...
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Keywords:
Financial Intermediation;
Institutional Investors;
Research Analysts;
Broker Networks;
Equity Trading;
Institutional Investing;
Financial Services Industry
Di Maggio, Marco, Mark Egan, and Francesco Franzoni. "The Value of Intermediation in the Stock Market." Harvard Business School Working Paper, No. 20-016, August 2019. (Revised June 2021. Accepted at the Journal of Financial Economics.)
- July 2019
- Supplement
Omidyar Network's Impact Investment Framework
By: Vikram S Gandhi
A team of investors at Omidyar Network explore two different investment possibilities in the budding financial inclusion space using their investment framework to consider capital alternatives available for both investments, each of which carries highly divergent...
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Keywords:
Impact Investing;
Micro Finance;
Investment;
Investment Return;
Investment Activism;
Investment Portfolio;
Microfinance;
Framework;
India;
Philippines
Gandhi, Vikram S. "Omidyar Network's Impact Investment Framework." Harvard Business School Multimedia/Video Supplement 320-701, July 2019.
- July 2019
- Supplement
Omidyar Network's Investment Decisions: MicroEnsure and Lenddo
By: Vikram S Gandhi
A team of investors at Omidyar Network explore two different investment possibilities in the budding financial inclusion space using their investment framework to consider capital alternatives available for both investments, each of which carries highly divergent...
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Keywords:
Impact Investing;
Micro Finance;
Investment;
Investment Return;
Investment Activism;
Investment Portfolio;
Microfinance;
Decision Choices and Conditions;
India;
Philippines
Gandhi, Vikram S. "Omidyar Network's Investment Decisions: MicroEnsure and Lenddo." Harvard Business School Multimedia/Video Supplement 320-702, July 2019.
- April 2019
- Case
Afterpay U.S.: The Omnichannel Dilemma
By: Antonio Moreno, Donald Ngwe and George Gonzalez
In 2018, Nick Molnar, the founder of the Australia-based online payment service Afterpay began its expansion to the U.S. market. The service had gained a loyal following in Australia by enabling customers to pay for online purchases through four interest-free...
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Keywords:
Omnichannel Retail;
Multi-sided Platforms;
Value Creation;
Business Model Innovation;
Fintech;
Digital Marketing;
Disruptive Innovation;
Business Startups;
Business Growth and Maturation;
Business Model;
Business Organization;
For-Profit Firms;
Change Management;
Customer Value and Value Chain;
Customer Relationship Management;
Customer Satisfaction;
Financing and Loans;
Microfinance;
Global Strategy;
Marketing Channels;
Brands and Branding;
Marketing Strategy;
Market Entry and Exit;
Digital Platforms;
Product Development;
Supply Chain Management;
Business and Stakeholder Relations;
Networks;
Network Effects;
Internet and the Web;
Financial Services Industry;
Financial Services Industry;
Financial Services Industry;
United States;
Australia
Moreno, Antonio, Donald Ngwe, and George Gonzalez. "Afterpay U.S.: The Omnichannel Dilemma." Harvard Business School Case 519-086, April 2019.
- March 2019 (Revised May 2019)
- Case
Fetchr: A New Way of Last Mile Delivery
By: V.G. Narayanan and Eren Kuzucu
By mid-2016, five years of aggressive growth had transformed Fetchr from a small logistics startup to a 1,000-employee, full-fledged last-mile delivery company operating across four countries in the Middle East and North Africa (MENA). Already beneficiaries of the...
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Keywords:
Startup;
Decision;
Financial Strategy;
UAE;
KSA;
MENA;
Cost Accounting;
Business Model;
Business Startups;
Transformation;
Cost Management;
Strategy;
Disruptive Innovation;
Technological Innovation;
Growth and Development Strategy;
Growth Management;
Logistics;
Service Delivery;
Supply Chain Management;
Performance Evaluation;
Mathematical Methods;
Mobile and Wireless Technology;
Transportation Networks;
Middle East;
United Arab Emirates;
Dubai;
Bahrain;
Egypt;
Saudi Arabia;
North Africa
Narayanan, V.G., and Eren Kuzucu. "Fetchr: A New Way of Last Mile Delivery." Harvard Business School Case 119-018, March 2019. (Revised May 2019.)
- 2019
- Article
Structural Balance Emerges and Explains Performance in Risky Decision-Making
By: Omid Askarisichani, Jacqueline N. Lane, Francesco Bullo, Noah E. Friedkin, Ambuj K. Singh and Brian Uzzi
Polarization affects many forms of social organization. A key issue focuses on which affective relationships are prone to change and how their change relates to performance. In this study,
we analyze a financial institutional over a two-year period that employed 66...
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Keywords:
Polarization;
Structural Balance;
Performance;
Groups and Teams;
Risk and Uncertainty;
Decision Making
Askarisichani, Omid, Jacqueline N. Lane, Francesco Bullo, Noah E. Friedkin, Ambuj K. Singh, and Brian Uzzi. "Structural Balance Emerges and Explains Performance in Risky Decision-Making." Art. 2648. Nature Communications 10 (2019): 1–10.
- 2018
- Working Paper
OTC Intermediaries
By: Andrea L. Eisfeldt, Bernard Herskovic, Sriram Rajan and Emil Siriwardane
Over-the-counter (OTC) markets for financial assets are dominated by a relatively small number of core intermediaries and a large number of peripheral customers. In this paper, we develop a model of trade in a core-periphery network and estimate its key structural...
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Keywords:
OTC Markets;
Intermediaries;
Dealers;
Credit Default Swaps;
Risk Sharing;
Networks;
Price;
Risk and Uncertainty
Eisfeldt, Andrea L., Bernard Herskovic, Sriram Rajan, and Emil Siriwardane. "OTC Intermediaries." Working Paper, August 2018.
- October 2018
- Case
Accomplice: Scaling Early Stage Finance
By: Ramana Nanda, Raffaella Sadun and Olivia Hull
Accomplice, an early-stage venture capital firm based in Boston, is raising its second fund in November 2017. Since 2009, the firm has followed a seed-led investment model, investing in tech companies at the earliest stages, often when products and business models are...
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Keywords:
Early Stage Finance;
Seed Finance;
Scouts;
Venture Capital;
Business Startups;
Private Equity;
Investment Portfolio;
Organizational Structure;
Organizational Change and Adaptation;
Partners and Partnerships;
Networks;
Adaptation;
Corporate Strategy;
Technology;
Financial Services Industry;
Massachusetts;
Boston;
Cambridge;
United States
Nanda, Ramana, Raffaella Sadun, and Olivia Hull. "Accomplice: Scaling Early Stage Finance." Harvard Business School Case 719-403, October 2018.
- January 2018 (Revised February 2020)
- Case
Financial Inclusion at Omidyar Network
By: Vikram S. Gandhi, Caitlin Lindsay Reimers Brumme and James Barnett
A team of investors at Omidyar Network explore two different investment possibilities in the budding financial inclusion space using their investment framework to consider capital alternatives available for both investments, each of which carries highly divergent...
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Keywords:
Impact Investing;
Micro Finance;
Investment;
Investment Return;
Investment Activism;
Investment Portfolio;
Microfinance;
Africa;
Philippines
Gandhi, Vikram S., Caitlin Lindsay Reimers Brumme, and James Barnett. "Financial Inclusion at Omidyar Network." Harvard Business School Case 318-004, January 2018. (Revised February 2020.)
- March 2017
- Case
Swagbucks
By: Jeffrey F. Rayport and Matthew G. Preble
In early 2016, Chuck Davis, chairman and CEO of Prodege LLC, parent company of the brand promotion business Swagbucks, and Josef Gorowitz, Prodege’s founder and president, must decide whether to acquire MyPoints, a competitor to Swagbucks, after the company’s...
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Keywords:
Loyalty Management;
Scaling;
Scale;
Entrepreneurship;
Human Resources;
Employees;
Employee Relationship Management;
Organizational Change and Adaptation;
Organizational Culture;
Organizational Design;
Leading Change;
Growth Management;
Religion;
Technology;
Online Technology;
Internet;
Transition;
Leadership;
Web Services Industry;
Technology Industry;
United States
Rayport, Jeffrey F., and Matthew G. Preble. "Swagbucks." Harvard Business School Case 817-068, March 2017.
- March 2017 (Revised December 2018)
- Case
Reawakening the Magic: Bob Iger and the Walt Disney Company
By: David Collis and Ashley Hartman
Mickey Mouse, Snow White, and Buzz Lightyear strolled down Main Street at the grand opening of Hong Kong Disney in the fall of 2005, pausing to snap selfies with enthusiastic children in Mickey Mouse ears. Bob Iger, newly appointed CEO of The Walt Disney Company,...
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Keywords:
Franchise Management;
Brand Management;
Culture Change;
Business Units;
Acquisition Strategy;
Technological Change;
Disney;
ESPN;
Cord-cutting;
Bob Iger;
Strategy;
Corporate Strategy;
Competitive Advantage;
Diversification;
Integration;
Media;
Media and Broadcasting Industry;
Entertainment and Recreation Industry;
Consumer Products Industry
Collis, David, and Ashley Hartman. "Reawakening the Magic: Bob Iger and the Walt Disney Company." Harvard Business School Case 717-483, March 2017. (Revised December 2018.)
- December 2016
- Article
Corporate Sponsorship in Culture—A Case of Collaborative Marketing by a Global Bank and a Major Art Museum
By: Ragnar Lund and Stephen A. Greyser
This paper examines cultural sponsorship from a partnership perspective. It studies the collaboration between two international institutions, a bank and a museum, and their value co-creation with customers and audiences. This in-depth case study of a sponsorship...
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Keywords:
Sponsorship;
Co-marketing;
Partnerships;
International Marketing;
Arts Marketing;
Relationship Marketing;
Museums;
Resource Integration;
Marketing;
Partners and Partnerships;
Financial Institutions;
Arts
Lund, Ragnar, and Stephen A. Greyser. "Corporate Sponsorship in Culture—A Case of Collaborative Marketing by a Global Bank and a Major Art Museum." Journal of Business and Policy Research 11, no. 2 (December 2016): 156–177.
- Article
Undermining Value-Based Purchasing — Lessons from the Pharmaceutical Industry
By: Leemore S. Dafny, Christopher Ody and Matt Schmitt
The analogy between value-based purchasing in pharmaceuticals and the new frontier of alternative payment models for health care providers is relatively straightforward. Insurers are increasingly demanding steep discounts from providers in exchange for inclusion in...
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Keywords:
Drug Copayment Coupons;
Prescription Drug Policy;
Health Care and Treatment;
Insurance;
Cost;
Policy;
Pharmaceutical Industry
Dafny, Leemore S., Christopher Ody, and Matt Schmitt. "Undermining Value-Based Purchasing — Lessons from the Pharmaceutical Industry." New England Journal of Medicine 375, no. 21 (November 24, 2016): 2013–2015.
- 2015
- Working Paper
The Impact of Funds: An Evaluation of CDC 2004-12
By: Josh Lerner, Ann Leamon, Steve Dew and Dong Ik Lee
CDC was founded in 1948 as part of the U.K. government's efforts to develop the economic resources of Britain's remaining colonies. Since then, CDC has pursued a series of strategies to "do good without losing money," as its original mission was phrased. Its approach...
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Lerner, Josh, Ann Leamon, Steve Dew, and Dong Ik Lee. "The Impact of Funds: An Evaluation of CDC 2004-12." Working Paper, October 2015.
- 2015
- Working Paper
Corporate Sponsorship in Culture—A Case of Partnership in Relationship Building and Collaborative Marketing by a Global Financial Institution and a Major Art Museum
By: Ragnar Lund and Stephen A. Greyser
Purpose: This paper examines cultural sponsorship from a partnership and relationship marketing perspective. It studies a case of how a partnership between two international institutions, a bank and a museum, adds value to both in terms of interaction with...
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Lund, Ragnar, and Stephen A. Greyser. "Corporate Sponsorship in Culture—A Case of Partnership in Relationship Building and Collaborative Marketing by a Global Financial Institution and a Major Art Museum." Harvard Business School Working Paper, No. 16-041, October 2015.
- March 2015
- Case
BOLT: Seed Venture Capital Firm
By: William A. Sahlman and Robert F. White
BOLT is a different kind of seed venture capital firm built to serve the needs of early-stage startups at the intersection of hardware and software.
In the past decade, the cost of entrepreneurial experimentation has dropped dramatically, particularly in web... View Details
In the past decade, the cost of entrepreneurial experimentation has dropped dramatically, particularly in web... View Details
Keywords:
Entrepreneurial Finance;
Accelerator;
Entrepreneurship;
Finance;
Venture Capital;
Applications and Software;
Information Infrastructure;
Strategy
Sahlman, William A., and Robert F. White. "BOLT: Seed Venture Capital Firm." Harvard Business School Multimedia/Video Case 815-702, March 2015.
- January 2015 (Revised September 2017)
- Case
Omar Selim: Building a Values-Based Asset Management Firm (A)
By: George Serafeim, Rebecca Henderson and Shannon Gombos
The sustainable investing market was a recent phenomenon in the first decade of the 21st century. However, an increasing number of investors began to integrated Environmental, Social and Governance (ESG) issues in investment decisions. At Barclays Capital, Omar Selim...
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Keywords:
Sustainability;
ESG;
Social Business;
Entrepreneurs;
Scaling;
Emerging Market Entrepreneurship;
Not For Profit;
Entrepreneurial Finance;
Mentoring;
Business Networks;
Hybrid Nonprofit Funding;
Investing;
Investment Management;
Asset Management;
Values and Beliefs;
Religion;
Personal Development and Career;
Business Startups;
Social Enterprise;
Social Entrepreneurship;
Financial Services Industry;
Europe;
Germany;
United Kingdom
Serafeim, George, Rebecca Henderson, and Shannon Gombos. "Omar Selim: Building a Values-Based Asset Management Firm (A)." Harvard Business School Case 115-021, January 2015. (Revised September 2017.)
- October 2014 (Revised November 2016)
- Technical Note
Customer Lifetime Value (CLV) vs. Customer Lifetime Return on Investment (CLROI)
By: Elie Ofek
This note presents two related measures for assessing the financial value of a customer to the firm. The first is the well-known measure of Customer Lifetime Value, or CLV for short. The second, which has received much less attention, treats the acquisition of a...
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Keywords:
Customer Lifetime Value;
Return On Investment;
Segmentation;
Social Networks;
Customer Relationship Management;
Marketing Strategy;
Investment Return;
Social and Collaborative Networks;
Social Media
Ofek, Elie. "Customer Lifetime Value (CLV) vs. Customer Lifetime Return on Investment (CLROI)." Harvard Business School Technical Note 515-049, October 2014. (Revised November 2016.)