Publications

August 2009
Article

Mental Accounting and Small Windfalls: Evidence from an Online Grocer

By: John Beshears and Katherine L. Milkman

We study the effect of small windfalls on consumer spending decisions by comparing the purchases online grocery customers make when redeeming $10-off coupons with the purchases they make without coupons. Controlling for customer fixed effects and other variables, we... View Details

Keywords: Mental Accounting; Windfalls; Marginal Propensity To Consume; Coupons; Marketing Communications; Consumer Behavior; Accounting; Cognition and Thinking; Retail Industry

Find at Harvard

August 2024
Background Note

Mitigating Climate Change with Machine Learning

By: Michael W. Toffel, Kelsey Carter, Amy Chambers, Avery Park and Susan Pinckney

This note highlights how machine learning is being used to decarbonize (reduce GHG emissions) several key sectors including electricity, transportation, building, industrial processes, and agriculture -- and how machine learning is being used to accelerate efforts to... View Details

Keywords: Climate; Artificial Intelligence; Adaptation; Climate Change; AI and Machine Learning; Innovation and Invention

02 Jan 2024
Research & Ideas

10 Trends to Watch in 2024

The lightning-fast ascent of generative AI isn’t the only sea change on the horizon for businesses in the new year. The global economy is in flux as war, climate change, trade issues, and infrastructure problems demand attention. Many companies continue to struggle to... View Details

Keywords: by Rachel Layne

January 2022
Case

Fueling a Cleaner Future: ACWA Power and Green Hydrogen

By: Dennis Yao and Alpana Thapar

In January 2020, Paddy Padmanathan, president and CEO of ACWA Power, was reflecting on the company’s sixteen-year record of success and thinking about its future growth plans. Founded in 2004, ACWA Power was a Saudi Arabian developer, owner, and operator of power and... View Details

Keywords: Green Hydrogen; Energy; Climate Change; Supply Chain; Business Model; Growth and Development Strategy; Green Technology; Projects; Alliances; Environmental Sustainability; Corporate Social Responsibility and Impact; Energy Industry; Saudi Arabia; Middle East; North Africa

2024
Working Paper

Economic Budgeting for Endowment-Dependent Universities

By: John Y. Campbell, Jeremy C. Stein and Alex A. Wu

To understand their financial position, universities need to understand the long-term implications of their operating revenues and costs in relation to the financial assets they have available. Standard budgeting procedures that focus on one or two years at a time and... View Details

Keywords: Budgets and Budgeting; Cash Flow; Cost; Revenue; Education Industry

January 2010 (Revised March 2013)
Case

HubSpot: Lower Churn through Greater CHI

By: F. Asis Martinez Jerez, Thomas Steenburgh, Jill Avery and Lisa Brem

HubSpot, a web marketing startup is under pressure from VCs to rapidly acquire new customers and to maintain a low level of customer churn. In the case, students explore the drivers of customer churn and uncover opportunities to increase customer retention across the... View Details

Keywords: Business Startups; Customer Relationship Management; Customer Satisfaction; Customer Value and Value Chain; Forecasting and Prediction; Consumer Behavior; Happiness; Consulting Industry

Web

Browse All Articles, Research, & Case Studies - HBS Working Knowledge

extensive experience in climate negotiations and industry collaboration, Paul and Tom share insights on how COP29 fits into the broader climate agenda, what business leaders should expect, and how they can best engage. The conversation... View Details

12 Sep 2011
Research & Ideas

The Untold Story of ‘Green’ Entrepreneurs

it's really very important to document how they emerged, often ahead of public opinion, to try and solve the emergent environmental challenges faced by our world." In addition to studying wind pioneers and those in other alternative... View Details

Keywords: by Sean Silverthorne

Web

Business & Environment

certification and standards programs designed to facilitate the growth of green industries and the early stages of ESG investing. The second path, which developed from the 1970s, grew out of the interest of big business which sought an... View Details

December 2018 (Revised January 2020)
Case

Husk Power: Scaling the Venture

By: Benjamin N. Roth, Joseph B. Lassiter III and Natalia Rigol

In January 2018, Manoj Sinha—founder and CEO of Husk Power—was contemplating raising $20 million to scale operations for a second time. From 2007 through 2013, Husk built 80 biomass waste plants that provided electricity to 250,000 villagers and shop owners spread... View Details

Keywords: Scaling; Energy; Entrepreneurship; Emerging Markets; Growth and Development Strategy; Energy Industry; India

Article

The Growing Strategic Importance of End-of-Life Product Management

By: Michael W. Toffel

Requiring manufacturers to manage the their products when they become waste is an innovative form of regulation, one that has been adopted by countries in Asia, Europe, and North America on a variety of products that range from vehicles to appliances to batteries.... View Details

Keywords: Product; Environmental Sustainability; Cost Management; Wastes and Waste Processing; Strategy; Governing Rules, Regulations, and Reforms; Manufacturing Industry; Asia; Europe; North and Central America

Find at Harvard

Career Coach

Phillip Andrews

industries globally. He provides guidance on U.S. immigration and work authorization to help international students and alumni navigate the U.S. job search. As a coach, Phillip enjoys working with individuals on career visioning as well... View Details

Keywords: Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy; Energy

22 Nov 2023
Research & Ideas

Humans vs. Machines: Untangling the Tasks AI Can (and Can't) Handle

thinking that requires further study. “You can imagine many industries and many contexts where variety and the diversity of ideas is really important,” he says. “Now, there might be answers on how to increase the variety [of answers], but... View Details

Keywords: by Rachel Layne; Information Technology; Technology

15 Oct 2008
First Look

First Look: October 15, 2008

effectively within the newly merged entities. No PDF is available at this time. Reputation and Competition: Evidence from the Credit Rating Industry Authors:Bo Becker and Todd Milbourn Abstract Fair and accurate credit ratings arguably... View Details

Keywords: Martha Lagace

January 2024
Article

A Cost Model for a Low Threshold Clinic Treating Opioid Use Disorder

By: Sarah E. Wakeman, Elizabeth Powell, Syed Shehab, Grace Herman, Laura Kehoe and Robert S. Kaplan

The US fee-for-service payment system under-reimburses clinics offering access to comprehensive treatments for opioid use disorder (OUD). The funding shortfall limits a clinic’s ability to expand and improve access, especially for socially marginalized patients with... View Details

Keywords: Health Care and Treatment; Cost; Equality and Inequality; Health Industry

Find at Harvard

2023
Working Paper

Cost-Efficient Decarbonization of Portland Cement Production

By: Gunther Glenk, Anton Kelnhofer, Rebecca Meier and Stefan Reichelstein

Accounting for nearly 8% of global annual carbon dioxide (CO2) emissions, the cement industry is considered difficult to decarbonize. While a sizeable number of abatement levers for Portland cement production is becoming technologically ready for deployment, many are... View Details

SSRN

May 2009 (Revised November 2010)
Case

Depreciation at Delta Air Lines: The "Fresh Start"

By: William J. Bruns Jr.

In estimating depreciation for accounting purposes, Delta Air Lines has changed its assumptions about aircraft lifespan and residual values four times in the last thirty years or so. In the most recent changes, Delta adopted fair value accounting as part of its fresh... View Details

Keywords: Accounting Policies; Accounting Procedures; Depreciation; Bankruptcy; Cost Accounting; Financial Reporting; Insolvency and Bankruptcy; Policy; Air Transportation Industry

2020
Case

Brightline: Targeting a Successful Future with High Speed Rail

By: Andrew J. Hoffman

High-speed rail (HSR) is a high-performance transportation technology that is time competitive with airplanes and automobiles, and is an environmentally preferable alternative due to its low carbon dioxide emissions. Brightline is a Florida HSR system in Phase II of... View Details

Keywords: Environmental Sustainability; Marketing Strategy; Segmentation; Transportation Industry

November 2022 (Revised October 2024)
Case

'A Marshall Plan for Africa': James Mwangi and Equity Group Holdings

By: Caroline M. Elkins, Debora L. Spar, Zeke Gillman and Julia M. Comeau

Financial Inclusion. Dignity. Trust. These were the core principles driving James Mwangi’s transformation of Equity Building Society, insolvent in 1991, into what is, today, Equity Group Holdings, East and Central Africa’s largest retail banking institution. Raised in... View Details

Keywords: Income Inequality; Micro Finance; Microcredit; Microfinance; Banks and Banking; Equality and Inequality; Mission and Purpose; Business Model; Social Entrepreneurship; Banking Industry; Banking Industry; Africa; Kenya