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  • 12 PM – 1 PM EST, 18 Jan 2018
  • Webinars: Trending@HBS

ESG Investing: What It Is and How to Use It

Integration of environmental, social, and governance (ESG) issues in investment decisions has been adopted by an increasing number of investors. However, there is still substantial confusion about how ESG investing can be used, when it can deliver better risk-adjusted... View Details
  • September – October 2011
  • Article

The Rise and Consequences of Corporate Sustainability Reporting

By: Ioannis Ioannou and George Serafeim
For many decades the cornerstone of corporate reporting has been financial information that is presented in a company's annual, semi-annual, and quarterly reports. These comprehensive financial reports—required by law for public companies in most countries... View Details
Keywords: Sustainability; ESG Reporting; Governing Rules, Regulations, and Reforms; Annual Reports; Operations; Strategy; Business and Shareholder Relations; Business and Stakeholder Relations; Performance; Business Model; Corporate Social Responsibility and Impact; Corporate Disclosure
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  • 30 Jun 2021
  • In Practice

The Harvard Business School Faculty Summer Reader 2021

What’s on HBS faculty members’ reading list for summer 2021? Which books are most meaningful to them and why? Below, faculty share their top picks, ranging from biographies and memoirs to their colleagues’ latest works. Julia Austin: Social justice and the Obamas I... View Details
Keywords: by Kathryn Haviland
  • 15 Apr 2014
  • First Look

First Look: April 15

Institutional Logics By: Ioannou, Ioannis, and George Serafeim Abstract—We explore the impact of corporate social responsibility (CSR) ratings on sell-side analysts'... View Details
Keywords: Sean Silverthorne
  • September 2023
  • Article

Stock Price Reactions to ESG News: The Role of ESG Ratings and Disagreement

By: George Serafeim and Aaron Yoon
We investigate whether ESG ratings predict future ESG news and the associated market reactions. We find that the consensus rating predicts future news, but its predictive ability diminishes for firms with large disagreement between raters. Relation between news and... View Details
Keywords: ESG; ESG (Environmental, Social, Governance) Performance; ESG Disclosure; ESG Ratings; ESG Reporting; ESG Disclosure Metrics; Sustainability; Investments; Disagreement; Rating Disagreement; Ratings; Environmental Sustainability; Social Issues; Corporate Social Responsibility and Impact; Performance; News; Investment; Financial Markets; Stocks; Price
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  • 02 Jan 2012
  • Research & Ideas

Most Popular Articles of 2011

that shows how CSR can make it easier for firms to secure financing for new projects. Research was conducted by George Serafeim and Beiting Cheng... View Details
Keywords: by Staff
  • 12 Apr 2011
  • First Look

First Look: April 12

monitoring efforts as well as the syndication process. Working Papers The Consequences of Mandatory Corporate Sustainability Reporting Authors: Ioannis Ioannou and George View Details
Keywords: Sean Silverthorne
  • 2012
  • Article

Mutual Fund Trading Pressure: Firm-Level Stock Price Impact and Timing of SEOs

By: Mozaffar N. Khan, Leonid Kogan and George Serafeim
In tests of the equity market timing theory of external finance, the prior literature has used overvaluation identifiers such as high market-to-book and high prior returns that are likely correlated with other determinants of SEOs. We use price pressure resulting from... View Details
Keywords: Equity; Market Transactions; Valuation; Capital Structure; Market Timing; Mathematical Methods; Acquisition
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  • April 2015
  • Case

Accor: Designing an Asset-Right Business and Disclosure Strategy

By: Mozaffar Khan and George Serafeim
Sebastien Bazin was now in charge of Accor, the world's largest French hotelier, a CAC 40 company with 3,600 hotels in 92 countries and a market cap of €10 billion. Previously as the European head of Colony Capital, one of the largest private equity groups and the... View Details
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  • 16 May 2017
  • First Look

First Look at New Ideas and Research, May 16

rapidly in importance. Download working paper: https://www.hbs.edu/faculty/Pages/item.aspx?num=52634 The Consequences of Mandatory Corporate Sustainability Reporting By: Ioannou, Ioannis, and George View Details
Keywords: Re: Multiple Faculty
  • 28 Jun 2011
  • First Look

First Look: June 28

Authors:Ioannis Ioannou and George Serafeim Publication:Business Strategy Review (May 2011) Abstract We are exploring the value of forcing corporations to issue sustainability... View Details
Keywords: Sean Silverthorne
  • 06 Mar 2018
  • First Look

First Look at Research and Ideas, March 6, 2018

forthcoming Financial Analysts Journal Why and How Investors Use ESG Information: Evidence from a Global Survey By: Amel-Zadeh, Amir, and George View Details
Keywords: Sean Silverthorne
  • 12 Dec 2017
  • First Look

New Research and Ideas, December 12, 2017

https://www.hbs.edu/faculty/Pages/item.aspx?num=53593 Material Sustainability Information and Stock Price Informativeness By: Grewal, Jody, Clarissa Hauptmann, and George View Details
Keywords: Sean Silverthorne
  • 01 Dec 2022
  • News

Educating, Connecting, and Mobilizing Around Climate Change

Impact Lab at the Digital, Data, and Design Institute at Harvard with HBS professors George Serafeim and Peter Tufano. Key takeaway: “Many... View Details
Keywords: Jennifer Gillespie
  • 22 Mar 2018
  • News

Sustainability: A New Way of Doing Business

  • 23 Aug 2019
  • Sharpening Your Skills

Has the Corporate Mission Just Been Disrupted?

companies within most industries adopted an increasingly similar set of sustainability practices. This study by by Ioannis Ioannou and George... View Details
Keywords: by Sean Silverthorne; Green Technology
  • 24 Sep 2013
  • First Look

First Look: September 24

Earnings Call By: Eccles, Robert G., and George Serafeim Abstract—One of the challenges companies claim to face in making sustainability a core part of their strategy View Details
Keywords: Sean Silverthorne
  • 01 Dec 2018
  • News

Sustaining Business And Society For The Long Term

spark discussions about the critical role that business can play in solving some of the world’s biggest problems. The 20 hours of content Henderson developed highlight a variety of companies, some of which feature in cases she and... View Details
  • 01 Dec 2019
  • News

Shaping Leaders Who Understand Business and the Environment

Michael Toffel, the Senator John Heinz Professor of Environmental Management and chair of the Business and Environment Initiative Five years ago, as George View Details
Keywords: April White
  • 02 Oct 2012
  • First Look

First Look: October 2

Publications Corporate Social Responsibility and Access to Finance Authors: Beiting Cheng, Ioannis Ioannou, and George Serafeim Publication:... View Details
Keywords: Sean Silverthorne