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- January 2021
- Article
ETF Activity and Informational Efficiency of Underlying Securities
By: Lawrence Glosten, Suresh Nallareddy and Yuan Zou
This paper investigates the effect of exchange-traded funds’ (ETFs’) activity on the short-run informational efficiency of their underlying securities. We find that ETF activity increases short-run informational efficiency for stocks with weak information environments.... View Details
Glosten, Lawrence, Suresh Nallareddy, and Yuan Zou. "ETF Activity and Informational Efficiency of Underlying Securities." Management Science 67, no. 1 (January 2021): 22–47.
- January 2016
- Teaching Note
Groom Energy Solutions: Selling Efficiency
By: Michael W. Toffel, Kira Fabrizio and Stephanie van Sice
This case examines a start-up service provider that helps clients improve the energy efficiency of their factories, warehouses, and commercial and office spaces by integrating and installing lighting, heating, and cooling technologies. The company seeks to double... View Details
- Article
DEA Model with Shared Resources and Efficiency Decomposition
By: Yao Chen, Juan Du, H. David Sherman and Joe Zhu
Data envelopment analysis (DEA) has proved to be an excellent approach for measuring performance of decision making units (DMUs) that use multiple inputs to generate multiple outputs. In many real world scenarios, DMUs have a two-stage network process with shared input... View Details
Chen, Yao, Juan Du, H. David Sherman, and Joe Zhu. "DEA Model with Shared Resources and Efficiency Decomposition." European Journal of Operational Research 207, no. 1 (November 2010): 339–349.
- June 2005 (Revised October 2007)
- Background Note
Market Efficiency
By: Joshua D. Coval, Erik Stafford, Rodrigo Osmo, John Jernigan, Zachary Page and Paul Passoni
Covers how prices react to information, the incentives for bringing information into prices, and the paradox of market efficiency in equilibrium--for investors to work hard keeping markets efficient, they must always be somewhat inefficient at the margin. Uses separate... View Details
- May 2024
- Article
Housing Policies and Energy Efficiency Spillovers in Low and Moderate Income Communities
By: Omar Isaac Asensio, Olga Churkina, Becky D. Rafter and Kira E O'Hare
Housing policies address the human dimensions of increasing urban density, but their energy and sustainability implications are hard to measure due to challenges with siloed civic data. This is especially critical when evaluating policies targeting low- and... View Details
Keywords: Energy Efficiency; Public Policy; Climate Change; Energy Conservation; Housing; Analytics and Data Science; Policy; Income; Environmental Sustainability; Real Estate Industry; United States
Asensio, Omar Isaac, Olga Churkina, Becky D. Rafter, and Kira E O'Hare. "Housing Policies and Energy Efficiency Spillovers in Low and Moderate Income Communities." Nature Sustainability 7, no. 5 (May 2024): 590–601.
- 2021
- Working Paper
Public Disclosure of Private Meetings: Does Observing Peers' Information Acquisition Affect Analysts' Attention Allocation?
By: Yi Ru, Ronghuo Zheng and Yuan Zou
We investigate the impact of observing peers’ information acquisition on financial analysts’ attention allocation. Using the timely disclosure mandate by the Shenzhen Stock Exchange as a setting, we find that, when analysts can observe that a firm is visited by other... View Details
Keywords: Attention Allocation; Informational Efficiency; Corporate Site Visits; Externalities; Information; Acquisition; Corporate Disclosure; Outcome or Result
Ru, Yi, Ronghuo Zheng, and Yuan Zou. "Public Disclosure of Private Meetings: Does Observing Peers' Information Acquisition Affect Analysts' Attention Allocation?" Harvard Business School Working Paper, No. 22-064, July 2021.
- February 2013 (Revised December 2015)
- Case
Groom Energy Solutions: Selling Efficiency
By: Michael W. Toffel, Kira R. Fabrizio and Stephanie van Sice
Groom Energy Solutions helps organizations reduce their energy use and costs through the implementation of energy efficiency measures, which create long-term financial and environmental benefits. With early success serving customers in the cold storage and industrial... View Details
Keywords: Groom Energy Solutions; Jon Guerster; Salem, MA; Energy Management; Energy Efficiency Paradox; Sustainability Management; Manufacturing; Cold Storage; Commercial Real Estate; Enterprise Smart Grid; Carbon Accounting; LED Lighting; Sustainability Research; Entrepreneurship; Environmental Entrepreneurship; Energy Entrepreneurship; Energy Services; Electricity; Startup; Expansion; Growth; Sustainability; Business Startups; Forecasting and Prediction; Energy Conservation; Revenue; Geographic Location; Human Resources; Management; Growth and Development Strategy; Market Entry and Exit; Operations; Service Delivery; Strategic Planning; Science; Environmental Sustainability; Climate Change; Society; Social Issues; Technology Adoption; Energy Industry; Green Technology Industry; Technology Industry; Utilities Industry; United States; Boston
Toffel, Michael W., Kira R. Fabrizio, and Stephanie van Sice. "Groom Energy Solutions: Selling Efficiency." Harvard Business School Case 613-054, February 2013. (Revised December 2015.)
- Research Summary
Markets, Information, and Efficiency
Professor Meulbroeks market efficiency research focuses on the closely related questions of whether markets properly reflect information that affects a firm's value, and in turn how stock prices influence managerial behavior. In this area, she studies why some firms... View Details
- 1975
- Working Paper
Information, Efficiency and Equilibrium
By: Jerry R. Green
When economic agents receive information over time concerning future events it is likely that prices for commodities whose value is influenced by these events will fluctuate in response to changes in the state of knowledge. If such events occur periodically,... View Details
Green, Jerry R. "Information, Efficiency and Equilibrium." Harvard Institute of Economic Research Discussion Paper, No. 284, December 1975.
- Forthcoming
- Article
Passive Ownership and Price Informativeness
By: Marco Sammon
I show that passive ownership negatively affects the degree to which stock prices anticipate earnings announcements. Estimates across several research designs imply that the rise in passive ownership over the last 30 years has caused the amount of information... View Details
Keywords: Passive Ownership; ETFs; Market Efficiency; Price; Investment Funds; Stocks; Communication
Sammon, Marco. "Passive Ownership and Price Informativeness." Management Science (forthcoming). (Pre-published online September 17, 2024.)
- Article
Non-verifiability, Costly Renegotiation, and Efficiency
By: Jerry R. Green and J. J. Laffont
We study the implications of the non verifiability of information for the allocation of resources and the bearing of risk in a two party relationship. We consider a two step approach. In step one the two parties define a non contingent contract which will be executed... View Details
Keywords: Negotiation
Green, Jerry R., and J. J. Laffont. "Non-verifiability, Costly Renegotiation, and Efficiency." Annales d'économie et de statistique, no. 36 (October–December 1994): 81–95.
- 2022
- Article
Efficiently Training Low-Curvature Neural Networks
By: Suraj Srinivas, Kyle Matoba, Himabindu Lakkaraju and Francois Fleuret
Standard deep neural networks often have excess non-linearity, making them susceptible to issues such as low adversarial robustness and gradient instability. Common methods to address these downstream issues, such as adversarial training, are expensive and often... View Details
Keywords: AI and Machine Learning
Srinivas, Suraj, Kyle Matoba, Himabindu Lakkaraju, and Francois Fleuret. "Efficiently Training Low-Curvature Neural Networks." Advances in Neural Information Processing Systems (NeurIPS) (2022).
- 2023
- Working Paper
Dynamic Pricing, Intertemporal Spillovers, and Efficiency
By: Alexander J. MacKay, Dennis Svartbäck and Anders G. Ekholm
Pricing technology that allows firms to rapidly adjust prices has two potential benefits.
Time-varying prices can respond to high-frequency demand shocks to generate greater revenues,
and they can also be used to smooth out demand to reduce costs. Using data... View Details
MacKay, Alexander J., Dennis Svartbäck, and Anders G. Ekholm. "Dynamic Pricing, Intertemporal Spillovers, and Efficiency." Harvard Business School Working Paper, No. 23-007, July 2022. (Revised December 2023.)
- April 2017
- Article
The Effectiveness of U.S. Energy Efficiency Building Labels
By: Omar Isaac Asensio and Magali A Delmas
Information programs are promising strategies to encourage investments in energy efficiency in commercial buildings. However, the realized effectiveness of these programs has not yet been estimated on a large scale. Here we take advantage of a large sample of monthly... View Details
Asensio, Omar Isaac, and Magali A Delmas. "The Effectiveness of U.S. Energy Efficiency Building Labels." Art. 17033. Nature Energy 2, no. 4 (April 2017).
- July 2021
- Article
Energy Efficiency and Electricity Reliability
By: Eliana Carranza and Robyn C. Meeks
Overloaded electrical systems are a major source of unreliable power. Using a randomized saturation design, we estimate the impact of compact fluorescent lamps (CFLs) on electricity reliability and household electricity consumption in the Kyrgyz Republic. Greater... View Details
Keywords: Energy; Technology Adoption; Green Technology; Consumer Behavior; Utilities Industry; Kyrgyzstan
Carranza, Eliana, and Robyn C. Meeks. "Energy Efficiency and Electricity Reliability." Review of Economics and Statistics 103, no. 3 (July 2021): 461–475.
- 1979
- Article
Approximating the Efficiency Gain of Tax Reforms
By: Jerry R. Green and Eytan Sheshinski
Proper analysis of tax reform requires evaluation of the welfare effects induced by a change from one tax system to another. We present two methods for estimating these changes using only local information pertaining to an initial equilibrium with distortive taxes. It... View Details
Green, Jerry R., and Eytan Sheshinski. "Approximating the Efficiency Gain of Tax Reforms." Journal of Public Economics 11, no. 2 (1979): 179–195.
- November 2012 (Revised August 2014)
- Case
Cisco in 2012: Reorganizing for Efficiency and Flexibility
By: Ranjay Gulati, Alison Berkley Wagonfeld and Luciana Silvestri
In 2012, Cisco was under intense pressure to show results: growth in its core business was decelerating and a number of exploratory ventures and acquisitions had not proven as profitable as expected. CEO John Chambers vowed to restore the company's health in a way that... View Details
Keywords: Organizational Change and Adaptation; Restructuring; Adaptation; Performance Efficiency; Emerging Markets; Information Technology Industry
Gulati, Ranjay, Alison Berkley Wagonfeld, and Luciana Silvestri. "Cisco in 2012: Reorganizing for Efficiency and Flexibility." Harvard Business School Case 413-069, November 2012. (Revised August 2014.)
- 22 Jun 2007
- Working Paper Summaries
Proprietary vs. Open Two-Sided Platforms and Social Efficiency
- September 2010 (Revised January 2012)
- Case
OPOWER: Increasing Energy Efficiency through Normative Influence (A)
By: Amy J.C. Cuddy, Kyle Todd Doherty and Maarten W. Bos
The case profiles OPOWER, an energy efficiency software company that applies Cialdini's principles of social influence to successfully encourage consumers to reduce their energy usage. OPOWER was co-founded in 2008 by two young Harvard graduates, Dan Yates and Alex... View Details
Keywords: Mathematical Methods; Applications and Software; Attitudes; Entrepreneurship; Energy Conservation; Power and Influence; Growth and Development Strategy; Energy Industry; United States
Cuddy, Amy J.C., Kyle Todd Doherty, and Maarten W. Bos. "OPOWER: Increasing Energy Efficiency through Normative Influence (A)." Harvard Business School Case 911-016, September 2010. (Revised January 2012.)
- December 2023
- Article
Advances in Power-to-Gas Technologies: Cost and Conversion Efficiency
By: Gunther Glenk, Philip Holler and Stefan Reichelstein
Widespread adoption of hydrogen as an energy carrier is widely believed to require continued advances in Power-to-Gas (PtG) technologies. Here we provide a comprehensive assessment of the dynamics of system prices and conversion efficiency for three currently prevalent... View Details
Keywords: Clean Technology; Green Hydrogen; Carbon Emissions; Decarbonization; Learning By Doing; Environment; Energy; Environmental Accounting; Environmental Management; Sustainable Cities; Cost Accounting; Innovation and Management; Technology Adoption; Energy Policy; Engineering; Green Technology; Energy Industry; Utilities Industry; Industrial Products Industry; Manufacturing Industry; Transportation Industry; North America; South America; Africa; Europe; Asia
Glenk, Gunther, Philip Holler, and Stefan Reichelstein. "Advances in Power-to-Gas Technologies: Cost and Conversion Efficiency." Energy & Environmental Science 16, no. 12 (December 2023): 6058–6070.