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April 2005
Article

The Geography of Equity Analysis

By: Christopher J. Malloy

I provide evidence that geographically proximate analysts are more accurate than other analysts. Stock returns immediately surrounding forecast revisions suggest that local analysts impact prices more than other analysts. These effects are strongest for firms located... View Details

Keywords: Geographic Location; Stocks; Investment Return; Forecasting and Prediction; Price; Performance; Equity; Information; Prejudice and Bias; Agency Theory

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24 Oct 2018
HBS Seminar

Ina Ganguli, University of Massachusetts Amherst

06 Aug 2009
Working Paper Summaries

Buy Local? The Geography of Successful and Unsuccessful Venture Capital Expansion

Keywords: by Henry Chen, Paul A. Gompers, Anna Kovner & Josh Lerner

Jan W. Rivkin

Jan W. Rivkin is a Professor in the Strategy Unit at Harvard Business School. In the past, he has served as Faculty Chair of the MBA Program, Senior Associate Dean for Research, and head of the Strategy Unit. His research, course development, and teaching focus on... View Details

Keywords: airline; computer; internet; music; transportation

October 2023 (Revised March 2024)
Case

KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing

By: George Serafeim, Siko Sikochi and Namrata Arora

The problem was massive: two million hectares of African forests were lost annually to charcoal production for cooking, an area equivalent to 13 times Greater London, resulting in one billion tons of carbon emissions yearly. At the same time, an estimated 700,000... View Details

May 2024
Supplement

gWorks (B)

By: Richard S. Ruback and Royce Yudkoff

In January of 2019, Joe Heieck, CEO of gWorks, was deciding whether to proceed with his acquisition of Data Tech, that was a business roughly the same size as gWorks. gWorks, which provided geospatial software to small city and rural county governments, was acquired by... View Details

November 2023
Case

Nourishing Communities: Brighter Bites Approach to Childhood Nutrition

By: David E. Bell, Forest Reinhardt and Ai-Ling Jamila Malone

In September 2023, Brighter Bites, a Houston-based non-profit that distributed fresh produce and nutrition education in underserved communities across 11 cities and 5 states, grappled with identifying the best path forward for continued growth. Brighter Bites proved... View Details

Keywords: Nutrition; Growth and Development Strategy; Logistics; Nonprofit Organizations; Human Needs; Poverty; Houston

September 2022
Article

Health Externalities and Policy: The Role of Social Preferences

By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi

Social preferences facilitate the internalization of health externalities, for example by reducing mobility during a pandemic. We test this hypothesis using mobility data from 258 cities worldwide alongside experimentally validated measures of social preferences.... View Details

Keywords: Social Preferences; Pandemics; Mobility; Health Externalities; Mitigation Policies; Health Pandemics; Cooperation; Behavior; Policy

September 2006 (Revised November 2007)
Case

Patrimonio Hoy: A Financial Perspective

By: Arthur I Segel, Michael Chu and Gustavo A. Herrero

Patrimonio Hoy, a program targeting the housing needs of low-income families launched by CEMEX, a major Mexican corporation and a leading global cement company, has gone from a market research project to a highly visible initiative in 22 cities and has earned public... View Details

Keywords: Diversification; Housing; Income; Corporate Social Responsibility and Impact; Emerging Markets; Finance; Mexico

30 Jan 2014
News

The Polar Vortex Has Made You More Productive

08 May 2012
First Look

First Look: May 8

Peter A. Coles, Elena Corsi, and Vincent DessainHarvard Business School Case 912-022 French advertising company JCDecaux and the city of Paris jointly developed Vélib', a wildly popular bicycle sharing system. Despite Vélib's public... View Details

Keywords: Carmen Nobel

May 2024
Supplement

gWorks (A)

By: Richard S. Ruback and Royce Yudkoff

In January of 2019, Joe Heieck, CEO of gWorks, was deciding whether to proceed with his acquisition of Data Tech, that was a business roughly the same size as gWorks. gWorks, which provided geospatial software to small city and rural county governments, was acquired by... View Details

June 2023
Case

Rent Control in Boston, Again?

By: Robin Greenwood, Richard S. Ruback, Robert Ialenti and Tom Quinn

This case explores the merits and drawbacks of Boston Mayor Michelle Wu’s proposal to bring rent control back to the city in 2023. It lays out the features, objectives, and potential unintended consequences of this policy, before highlighting the expected impact of... View Details

Keywords: Renting or Rental; Housing; Urban Development; Policy; Boston; Massachusetts

June 2022
Article

The Welfare Effects of Peer Entry in the Accommodation Market: The Case of Airbnb and the Accommodation Industry

By: Chiara Farronato and Andrey Fradkin

We study the effects of enabling peer supply through Airbnb in the accommodation industry. We present a model of competition between flexible and dedicated sellers—peer hosts and hotels—who provide differentiated products. We estimate this model using data from major... View Details

Keywords: Peer To Peer; Airbnb; Digital Platforms; Market Entry and Exit; Competition; Accommodations Industry

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April 2017
Supplement

CIC: Catalyzing Entrepreneurial Ecosystems (B)

By: William R. Kerr, Sari Kerr and Alexis Brownell

CIC engages in "guerrilla warfare," offering free or highly discounted rates in order to get its empty offices filled before the opening day of its St. Louis branch. Opening day is a huge success, and CIC St. Louis grows rapidly, even opening a second building. In the... View Details

Keywords: Start-ups; Boston; Cambridge; St. Louis; CIC; Cambridge Innovation Center; Co-working Space; Entrepreneurial Ecosystems; Innovation Ecosystems; Entrepreneurship; Business Startups; Expansion; Growth and Development Strategy; Boston; Cambridge; St. Louis

October 2013 (Revised April 2016)
Case

StriveTogether: Reinventing the Local Education Ecosystem

By: Allen Grossman, Ann Lombard and Noah Fisher

StriveTogether aimed to improve education outcomes by coordinating the actions of diverse community stakeholders—nonprofit service providers, school districts, government, parents, businesses and others. StriveTogether had an intense focus on collective impact—"the... View Details

Keywords: Education Reform; Not For Profit; Communities; Collaboration; Collective Impact; Nonprofit Organizations; Education; Business and Community Relations; Education Industry; United States

July 2010
Article

The Supply Side of Innovation: H-1B Visa Reforms and U.S. Ethnic Invention

By: William R. Kerr and William F. Lincoln

This study evaluates the impact of high-skilled immigrants on U.S. technology formation. We use reduced-form specifications that exploit large changes in the H-1B visa program. Higher H-1B admissions increase immigrant science and engineering (SE) employment and... View Details

Keywords: Engineering; Governing Rules, Regulations, and Reforms; Policy; Immigration; Innovation and Invention; Patents; Business and Government Relations; Science; United States

2009
Working Paper

Clusters of Entrepreneurship

By: Edward L. Glaeser, William R. Kerr and Giacomo A.M. Ponzetto

Employment growth is strongly predicted by smaller average establishment size, both across cities and across industries within cities, but there is little consensus on why this relationship exists. Traditional economic explanations emphasize factors that reduce entry... View Details

Keywords: Economic Growth; Entrepreneurship; Cost; Employment; Market Entry and Exit