Publications

2023
Article

Evaluating Explainability for Graph Neural Networks

By: Chirag Agarwal, Owen Queen, Himabindu Lakkaraju and Marinka Zitnik

As explanations are increasingly used to understand the behavior of graph neural networks (GNNs), evaluating the quality and reliability of GNN explanations is crucial. However, assessing the quality of GNN explanations is challenging as existing graph datasets have no... View Details

Keywords: Analytics and Data Science

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September 1991 (Revised May 1994)
Background Note

Note on the PC Network Software Industry--1990

By: David B. Yoffie

Examines the economics, technology, customer segments, and competitors of the PC networking software industry. View Details

Keywords: Customers; Economics; Competition; Applications and Software; Technology Adoption; Information Infrastructure

February 2018 (Revised December 2019)
Case

Rise of the Drones: Identified Technologies

By: Andy Wu and George Gonzalez

The founder and CEO of Identified Technologies, a Pittsburgh-based drone software and services company, faces a dilemma when San Francisco–based DroneDeploy begins to disrupt the industry with its drone software platform. Identified Technologies needs to consider... View Details

Keywords: Applications and Software; Digital Platforms; Disruption; Network Effects; Computer Industry; Web Services Industry; Pittsburgh; San Francisco

January 2017 (Revised May 2019)
Case

Paytm: Building a Payments Network

By: Sunil Gupta, Das Narayandas and Rachna Tahilyani

By January 2017, Paytm, a mobile payments company that started in 2010, became India’s largest mobile payments platform with over 142 million users and $5 billion valuation. Could Paytm become a $100 billion company its founder Vijay Shekhar Sharma envisioned it be? View Details

Keywords: Mobile Payments; Ecommerce; Mobile App; India; Entrepreneurship; Expansion; Service Operations; Mobile and Wireless Technology; E-commerce; Service Industry; India

15 Oct 2014
News

The Next Generation of Social Networks

2023
Working Paper

Financial and Informational Integration Through Oracle Networks

By: Lin William Cong, Eswar Prasad and Daniel Rabetti

Oracles are software components that enable data exchange between siloed blockchains and external environments, enhancing smart contract capabilities and platform interoperability. We find that oracle integration is positively associated with total value locked and... View Details

Keywords: Decentralized Finance; Blockchain; Smart Contract; International Economy; Interoperability; Risk Sharing; Applications and Software; Financial Markets; Economics; Risk Management

SSRN

07 Sep 2020
News

Remote Networking as a Person of Color

February 2008
Article

Bandwidth Allocation in Peer-to-Peer File Sharing Networks

By: Albert Creus Mir, Ramon Casadesus-Masanell and Andres Hervas-Drane

We present a model of bandwidth allocation in a stylized peer-to-peer file sharing network. Given an arbitrary population of peers composed of sharers and freeriders, where all peers interconnect to maximize their allocated bandwidth, we derive the expected bandwidth... View Details

Keywords: Information Infrastructure; Resource Allocation

2007
Working Paper

Bandwidth Allocation in Peer-to-Peer Filesharing Networks

By: Albert Creus-Mir, Ramon Casadesus-Masanell and Andres Hervas-Drane

We present a model of bandwidth allocation in a stylized peer-to-peer file sharing network with s peers (sharers) who share files and download from each other and f peers (freeriders) who download from sharers but do not contribute files. Assuming that upload bandwidth... View Details

Keywords: Information Infrastructure; Resource Allocation

2009
Other Unpublished Work

Heterogeneous Technology Diffusion and Ricardian Trade Patterns

By: William R. Kerr

This study tests the importance of Ricardian technology differences for international trade. The developed panel includes both emerging and advanced economies, and particular attention is devoted to the variation exploited in empirical tests. The elasticity of export... View Details

Keywords: Trade; Immigration; Competitive Advantage; Integration; Technology; United States

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September 1999 (Revised April 2000)
Case

Novell: World's Largest Network Software Company

By: Richard L. Nolan

After phenomenal growth and market leadership in networking, founder and CEO Ray Noorda made a frontal assault on Microsoft's core strengths. In 1994, Noorda spend over $1.5 billion acquiring companies such as WordPerfect to combat Microsoft Word, products such as... View Details

Keywords: Information Infrastructure; Applications and Software; Competition; Internet and the Web; Strategic Planning; Corporate Strategy; Information Technology Industry

Find at Harvard

18 Mar 2011
News

Social Networks Will Change Product Innovation

29 Aug 2023
Cold Call Podcast

As Social Networks Get More Competitive, Which Ones Will Survive?

Keywords: Re: Felix Oberholzer-Gee; Entertainment & Recreation

January 2013 (Revised February 2013)
Case

EverTrue: Mobile Technology Development (A)

By: William R. Kerr and Alexis Brownell

Brent Grinna is evaluating different options for the technology development of his start-up's iPhone app, including hiring local programmers, finding a CTO, or outsourcing. He only has a little over two months before he presents his alumni networking app to Brown... View Details

Keywords: Start-up; Mobile App; oDesk; Outsourcing; CTO; Minimum Viable Product; App Development; Business Startups; Decisions; Entrepreneurship; Mobile and Wireless Technology; Intellectual Property; Product Development; Globalization; Technology Industry; Massachusetts; Boston; India

July 2004 (Revised September 2004)
Background Note

A Conversation about Information Technology

Two managers discuss the benefits, costs, opportunities, and headaches of corporate computing. Topics include security, training, the Internet and Web, collaboration, productivity, Moore's Law, computer crashes, upgrades, open source software, network effects,... View Details

Keywords: Information Technology; Problems and Challenges

August 2016 (Revised March 2019)
Case

Tom Kalil: Leading Technology & Innovation at the White House

By: Linda A. Hill and Allison J. Wigen

This case explores the role of Tom Kalil as Deputy Director for Technology & Innovation at the White House Office of Science and Technology Policy. With the end of President Obama's Administration drawing near, Kalil and his team of "policy entrepreneurs" must work to... View Details