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Article

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... View Details

Keywords: Financial Intermediation; Institutional Investors; Research Analysts; Broker Networks; Equity Trading; Institutional Investing

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July 2022
Teaching Note

Arçelik (A), (B): From a Dealer Network to an Omnichannel Experience

By: Ayelet Israeli, Fares Khrais and Menna Hassan

Arçelik Turkey, the country’s market leader in household appliances, was at an omnichannel crossroads in January 2020. Arçelik was a B2B player utilizing a dealership network with an umbrella of brands and had one of the largest brick-and-mortar store networks in... View Details

2024
Working Paper

Hidden Alpha

By: Manuel Amman, Alexander Cochardt, Lauren Cohen and Stephan Heller

This paper documents the central role of hidden connections between fund managers and firm officers in financial markets, drawing on an extensive dataset of over 100 thousand manually identified Facebook profiles and their 35 million Facebook friends. Our findings... View Details

Keywords: Returns; Investment Return; Networks

June 2022 (Revised January 2023)
Case

Buurtzorg

By: Ethan Bernstein, Tatiana Sandino, Joost Minnaar and Annelena Lobb

As co-founders of home nursing company Buurtzorg, Jos de Blok and Gonnie Kronenberg prized both self-management and organizational learning. Buurtzorg’s 10,000 nurses across 950 neighborhood nursing teams in the Netherlands were empowered to manage themselves, both in... View Details

2022
Chapter

Foreword

By: Jeff Polzer

Keywords: People Analytics; Networks; Analysis

June 2022 (Revised August 2023)
Case

Strategic Innovation at the United Nations: A Network of Ecosystems

By: Frank Nagle, Elizabeth J. Altman and Amy Klopfenstein

In 2021, Gina Lucarelli, leader of the United Nations Development Programme (UNDP) Accelerator Labs, prepared for a meeting with UNDP Administrator Achim Steiner. The two planned to discuss the future of the Accelerator Labs, a network of social innovation labs located... View Details

Keywords: Change; Disruption; Transformation; Change Management; Education; Learning; Environmental Management; Climate Change; Environmental Sustainability; Geography; Geographic Scope; Global Range; Local Range; Geopolitical Units; Country; Human Resources; Recruitment; Retention; Selection and Staffing; Employees; Employee Relationship Management; Information Technology; Information Management; Innovation and Invention; Collaborative Innovation and Invention; Disruptive Innovation; Innovation and Management; Innovation Leadership; Innovation Strategy; Knowledge; Knowledge Acquisition; Knowledge Dissemination; Knowledge Management; Knowledge Sharing; Knowledge Use and Leverage; Organizations; Mission and Purpose; Organizational Culture; Organizational Structure; Organizational Design; Organizational Change and Adaptation; Social Enterprise; Non-Governmental Organizations; Social Psychology; Social and Collaborative Networks; Society; Social Issues; Welfare; Strategy; Cooperation; Adaptation; Public Administration Industry; North and Central America

May 2022
Case

Rawbank's Illico Cash: Can 'Fast Money' Overcome Cash Dependency in the DRC?

By: Lauren Cohen and Grace Headinger

Thomas de Dreux-Brézé, the Head of Strategy and Project Management at Rawbank Congo in the Democratic Republic of the Congo (DRC), was perplexed as he reviewed annual adoption rates for the bank’s launch of Illico Cash 2.0. As the bank’s mobile money app, Illico Cash... View Details

Article

Why Build in Web3

By: Jad Esber and Scott Duke Kominers

A major change is coming to the internet. While today’s dominant platforms have guarded their troves of user data and maintained an advantage through network effects, new companies—working in what they're calling a “Web3” model—are proposing a new value proposition to... View Details

Keywords: Blockchain; User Experience; Digital Platforms; Network Effects; Internet and the Web; Competition; Web Services Industry

Article

Capture New Value from Your Existing Tech Infrastructure

By: Stefan Thomke and Anthony Rodrigo

When senior managers think about how to respond to the threats and opportunities of technological change, they often dream of the same thing: If they just could start a new company or division that isn’t held back by conventional thinking or outdated business models.... View Details

Keywords: Innovation; Technology; Ecosystem; Incubators; Technological Innovation; Telecommunications Industry; South Asia; Malaysia

May 2022
Case

The NFL’s $110-Billion Media Rights Deals

By: Anita Elberse and Elizabeth Warner

On March 18, 2021, Brian Rolapp, chief media and business officer at the National Football League (NFL) presented the results of a months-long effort to renegotiate rights deals with the NFL’s current partners in television—the media conglomerates behind the networks... View Details

Keywords: Sports; Entertainment; Media; Marketing; Strategy; General Management; Negotiation; Partners and Partnerships; Competition; Media and Broadcasting Industry; Sports Industry

2022
Article

Probing GNN Explainers: A Rigorous Theoretical and Empirical Analysis of GNN Explanation Methods.

By: Chirag Agarwal, Marinka Zitnik and Himabindu Lakkaraju

As Graph Neural Networks (GNNs) are increasingly employed in real-world applications, it becomes critical to ensure that the stakeholders understand the rationale behind their predictions. While several GNN explanation methods have been proposed recently, there has... View Details

Keywords: Graph Neural Networks; Explanation Methods; Mathematical Methods; Framework; Theory; Analysis

April 2022
Supplement

Mastercard Labs (B)

By: Linda A. Hill, Sunil Gupta, Emily Tedards and Julia Kelley

When Ajaypal (Ajay) Banga became the CEO of Mastercard in 2010, digital technologies were on the rise, and innovation needed to become a strategic imperative at the company. Banga tasked Garry Lyons, who had joined Mastercard through the 2009 acquisition of Orbiscom,... View Details

April 2022
Case

Marsha Simms: Trailblazer in Corporate Law

By: Robin Ely, Boris Groysberg, Colleen Ammerman and Olivia Hull

Follows the journey of lawyer Marsha Simms from her childhood in racially-segregated St. Louis to the upper echelons of the New York legal community. Describes her education, career choices, accomplishments, and setbacks. Highlights significant moments such as her... View Details

April 2022 (Revised May 2022)
Case

Mastercard Labs (A)

By: Linda A. Hill, Sunil Gupta, Emily Tedards and Julia Kelley

When Ajaypal (Ajay) Banga became the CEO of Mastercard in 2010, he shifted the company’s competitive focus from card networks to cash itself. Mastercard’s new vision of a “World Beyond Cash” distilled into a three-pronged framework: Grow the core business, Diversify... View Details

April 2022 (Revised May 2022)
Case

Mastercard Labs (A) (Abridged)

By: Linda A. Hill, Sunil Gupta, Emily Tedards and Julia Kelley

When Ajaypal (Ajay) Banga became the CEO of Mastercard in 2010, he shifted the company’s competitive focus from card networks to cash itself. Mastercard’s new vision of a “World Beyond Cash” distilled into a three-pronged framework: Grow the core business, Diversify... View Details

March 2022 (Revised March 2025)
Technical Note

Ethical Analysis: Society

By: Nien-hê Hsieh

How should managers determine and deliver on their responsibilities to society? This note summarizes prevailing approaches to this question and outlines an approach centered on what distinguishes society from other key constituencies, such as investors or customers.... View Details

Keywords: Social and Collaborative Networks; Management Analysis, Tools, and Techniques; Organizational Structure; Corporate Social Responsibility and Impact; Ethics; Analysis

March 2022
Case

The Goldman Sachs 10,000 Small Businesses Program: 2009-2021

By: Leonard A. Schlesinger and Julia Kelley

In December 2021, more than a decade after its founding, Goldman Sachs’s 10,000 Small Businesses program was still going strong — and the firm now needed to evaluate potential program modifications to reach a wider group of small business owners. Launched in the... View Details

March 2022
Case

Unilever: Remote Work in Manufacturing

By: Prithwiraj Choudhury and Susie L. Ma

In December 2021, Unilever—one of the world’s largest producers of consumer goods—was in the midst of a pilot project to digitize its manufacturing facilities and enable remote work for factory employees. This was possible because of an earlier project to retrofit a... View Details

Keywords: Change; Globalization; Information Technology; Technology Adoption; Human Resources; Jobs and Positions; Operations; Education; Training; Manufacturing Industry

March 2022 (Revised May 2022)
Case

Winning Business at Russell Reynolds (A)

By: Ethan Bernstein and Cara Mazzucco

In an effort to make compensation drive collaboration, Russell Reynolds Associates’ (RRA) CEO Clarke Murphy sought to re-engineer the bonus system for his executive search consultants in 2016. As his HR analytics guru, Kelly Smith, points out, that risks upsetting–and... View Details

March 2022
Supplement

Winning Business at Russell Reynolds (B)

By: Ethan Bernstein and Cara Mazzucco

In an effort to make compensation drive collaboration, Russell Reynolds Associates’ (RRA) CEO Clarke Murphy sought to re-engineer the bonus system for his executive search consultants in 2016. As his HR analytics guru, Kelly Smith, points out, that risks upsetting–and... View Details

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