Technology & Operations Management

- 2021
- Article
Evidence of Decreasing Internet Entropy: The Lack of Redundancy in DNS Resolution by Major Websites and Services

By: Samantha Bates, John Bowers, Shane Greenstein, Jordi Weinstock, Jonathan Zittrain and Yunhan Xu

This paper analyzes the extent to which the internet’s global domain name resolution (DNS) system has preserved its distributed resilience given the rise of cloud-based hosting and infrastructure. We explore trends in the concentration of the DNS space since at least 2011. In addition, we examine changes in domains’ tendency to “diversify” their pool of nameservers—how frequently domains employ DNS management services from multiple providers rather than just one provider—a comparatively costless and therefore puzzlingly rare decision that could supply redundancy and resilience in the event of an attack or service outage affecting one provider.
- 2021
- Article
Evidence of Decreasing Internet Entropy: The Lack of Redundancy in DNS Resolution by Major Websites and Services

By: Samantha Bates, John Bowers, Shane Greenstein, Jordi Weinstock, Jonathan Zittrain and Yunhan Xu

This paper analyzes the extent to which the internet’s global domain name resolution (DNS) system has preserved its distributed resilience given the rise of cloud-based hosting and infrastructure. We explore trends in the concentration of the DNS space since at least 2011. In addition, we examine changes in domains’ tendency to “diversify” their...
- April 2021
- Article
Homing and Platform Responses to Entry: Historical Evidence from the U.S. Newspaper Industry

By: K. Francis Park, Robert Seamans and Feng Zhu

We examine how heterogeneity in customers’ tendencies to single-home or multi-home affects a platform’s competitive responses to new entrants in the market. We first develop a formal model to generate predictions about how a platform will respond. We then empirically test it, leveraging a historical setting: TV station entry into local U.S. newspaper markets from 1945 to 1963. A notable feature of this setting is a quasi-natural experiment: the staggered geographic and temporal rollout of TV stations that was temporarily halted during the Korean War. We find that platform firms indeed take their customers’ homing tendencies into account in their responses to competition: after a TV station enters the newspaper market, newspaper firms with more single-homing consumers had lower subscription prices, circulations, and advertising rates.
- April 2021
- Article
Homing and Platform Responses to Entry: Historical Evidence from the U.S. Newspaper Industry

By: K. Francis Park, Robert Seamans and Feng Zhu

We examine how heterogeneity in customers’ tendencies to single-home or multi-home affects a platform’s competitive responses to new entrants in the market. We first develop a formal model to generate predictions about how a platform will respond. We then empirically test it, leveraging a historical setting: TV station entry into local U.S....
- April 2021
- Article
Work-From-Anywhere: The Productivity Effects of Geographical Flexibility

By: Prithwiraj Choudhury, Cirrus Foroughi and Barbara Larson

An emerging form of remote work allows employees to work-from-anywhere, so that the worker can choose to live in a preferred geographic location. While traditional work-from-home (WFH) programs offer the worker temporal flexibility, work-from-anywhere (WFA) programs offer both temporal and geographic flexibility. WFA should be viewed as a nonpecuniary benefit likely to be preferred by workers who would derive greater utility by moving from their current geographic location to their preferred location. We study the effects of WFA on productivity at the United States Patent and Trademark Office (USPTO) and exploit a natural experiment in which the implementation of WFA was driven by negotiations between managers and the patent examiners’ union, leading to exogeneity in the timing of individual examiners’ transition from a work-from-home to a work-from-anywhere program. This transition resulted in a 4.4 percent increase in output without affecting the incidence of rework. We also report results related to a plausible mechanism: an increase in observable effort as the worker transitions from a WFH to a WFA program. We employ illustrative field interviews, micro-data on locations, and machine learning analysis to shed further light on geographic flexibility, and summarize worker, firm, and economy-wide implications of provisioning WFA.
- April 2021
- Article
Work-From-Anywhere: The Productivity Effects of Geographical Flexibility

By: Prithwiraj Choudhury, Cirrus Foroughi and Barbara Larson

An emerging form of remote work allows employees to work-from-anywhere, so that the worker can choose to live in a preferred geographic location. While traditional work-from-home (WFH) programs offer the worker temporal flexibility, work-from-anywhere (WFA) programs offer both temporal and geographic flexibility. WFA should be viewed as a...

About the Unit

As the world of operations has changed, so have interests and priorities within the Unit. Historically, the TOM Unit focused on manufacturing and the development of physical products. Over the past several years, we have expanded our research, course development, and course offerings to encompass new issues in information technology, supply chains, and service industries.

The field of TOM is concerned with the design, management, and improvement of operating systems and processes. As we seek to understand the challenges confronting firms competing in today's demanding environment, the focus of our work has broadened to include the multiple activities comprising a firm's "operating core":

the multi-function, multi-firm system that includes basic research, design, engineering, product and process development and production of goods and services within individual operating units;
the networks of information and material flows that tie operating units together and the systems that support these networks;
the distribution and delivery of goods and services to customers.

Recent Publications

Afterpay U.S.: The Omnichannel Dilemma (PowerPoint Supplement)

By: Antonio Moreno and Anibha Singh

April 2021 |
Supplement |
Faculty Research

Citation

Evidence of Decreasing Internet Entropy: The Lack of Redundancy in DNS Resolution by Major Websites and Services

By: Samantha Bates, John Bowers, Shane Greenstein, Jordi Weinstock, Jonathan Zittrain and Yunhan Xu

2021 |
Article |
Journal of Quantitative Description

This paper analyzes the extent to which the internet’s global domain name resolution (DNS) system has preserved its distributed resilience given the rise of cloud-based hosting and infrastructure. We explore trends in the concentration of the DNS space since at least 2011. In addition, we examine changes in domains’ tendency to “diversify” their pool of nameservers—how frequently domains employ DNS management services from multiple providers rather than just one provider—a comparatively costless and therefore puzzlingly rare decision that could supply redundancy and resilience in the event of an attack or service outage affecting one provider.

Citation

Read Now

Building Cities' Collaborative Muscle

By: Jorrit De Jong, Amy C. Edmondson, Mark Moore, Hannah Riley-Bowles, Jan Rivkin, Eva Flavia Martínez Orbegozo and Santiago Pulido-Gomez

Spring 2021 |
Article |
Stanford Social Innovation Review (website)

The most pressing social problems facing cities today require multiagency and cross-sector solutions. We offer tools and techniques to facilitate the process of diagnosing and solving problems by breaking down silos to build up cities.

Keywords: Collaboration; Cross-sector Collaboration; City; Governance; Problems And Challenges; Cooperation

Citation

Read Now

Zeynep Ton: The Good Jobs Strategy

By: Francesca Gino and Frances X. Frei

April 2021 |
Case |
Faculty Research

The link to this multimedia case should be provided to students in advance as preparation for classroom case discussion.

Citation

Educators

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Work-From-Anywhere: The Productivity Effects of Geographical Flexibility

By: Prithwiraj Choudhury, Cirrus Foroughi and Barbara Larson

April 2021 |
Article |
Strategic Management Journal

An emerging form of remote work allows employees to work-from-anywhere, so that the worker can choose to live in a preferred geographic location. While traditional work-from-home (WFH) programs offer the worker temporal flexibility, work-from-anywhere (WFA) programs offer both temporal and geographic flexibility. WFA should be viewed as a nonpecuniary benefit likely to be preferred by workers who would derive greater utility by moving from their current geographic location to their preferred location. We study the effects of WFA on productivity at the United States Patent and Trademark Office (USPTO) and exploit a natural experiment in which the implementation of WFA was driven by negotiations between managers and the patent examiners’ union, leading to exogeneity in the timing of individual examiners’ transition from a work-from-home to a work-from-anywhere program. This transition resulted in a 4.4 percent increase in output without affecting the incidence of rework. We also report results related to a plausible mechanism: an increase in observable effort as the worker transitions from a WFH to a WFA program. We employ illustrative field interviews, micro-data on locations, and machine learning analysis to shed further light on geographic flexibility, and summarize worker, firm, and economy-wide implications of provisioning WFA.

Keywords: Geographic Flexibility; Work-from-anywhere; Remote Work; Telecommuting; Geographic Mobility; Uspto; Employees; Geographic Location; Performance Productivity

Citation

Find at Harvard

Read Now

Homing and Platform Responses to Entry: Historical Evidence from the U.S. Newspaper Industry

By: K. Francis Park, Robert Seamans and Feng Zhu

April 2021 |
Article |
Strategic Management Journal

We examine how heterogeneity in customers’ tendencies to single-home or multi-home affects a platform’s competitive responses to new entrants in the market. We first develop a formal model to generate predictions about how a platform will respond. We then empirically test it, leveraging a historical setting: TV station entry into local U.S. newspaper markets from 1945 to 1963. A notable feature of this setting is a quasi-natural experiment: the staggered geographic and temporal rollout of TV stations that was temporarily halted during the Korean War. We find that platform firms indeed take their customers’ homing tendencies into account in their responses to competition: after a TV station enters the newspaper market, newspaper firms with more single-homing consumers had lower subscription prices, circulations, and advertising rates.

Keywords: Single-homing; Multi-homing; Platform Responses; Newpaper; Television; Market Platforms; Market Entry And Exit; Newspapers; Television Entertainment; History; Journalism And News Industry; Media And Broadcasting Industry

Citation

Find at Harvard

Time Dependency, Data Flow, and Competitive Advantage

By: Ehsan Valavi, Joel Hestness, Marco Iansiti, Newsha Ardalani, Feng Zhu and Karim R. Lakhani

2021 |
Working Paper |
Faculty Research

Data is fundamental to machine learning-based products and services and is considered strategic due to its externalities for businesses, governments, non-profits, and more generally for society. It is renowned that the value of organizations (businesses, government agencies and programs, and even industries) scales with the volume of available data. What is often less appreciated is that the data value in making useful organizational predictions will range widely and is prominently a function of data characteristics and underlying algorithms. In this research, our goal is to study how the value of data changes over time and how this change varies across contexts and business areas (e.g., next word prediction in the context of history, sports, politics). We focus on data from Reddit.com and compare the value’s time-dependency across various Reddit topics (Subreddits). We make this comparison by measuring the rate at which user-generated text data loses its relevance to the algorithmic prediction of conversations. We show that different subreddits have different rates of relevance decline over time. Relating the text topics to various business areas of interest, we argue that competing in a business area in which data value decays rapidly alters strategies to acquire competitive advantage. When data value decays rapidly, access to a continuous flow of data will be more valuable than access to a fixed stock of data. In this kind of setting, improving user engagement and increasing user-base help creating and maintaining a competitive advantage.

Citation