Publications

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January 2012 (Revised September 2015)
Case

Tough Decisions at Marks and Spencer

By: George Serafeim

In 2007, under the leadership of CEO Stuart Rose, the iconic British retailer Marks and Spencer, with great fanfare, announced its "Plan A" initiative. Based on the five essential pillars of climate change, waste, sustainable materials, fair partnership, and health,... View Details

Keywords: Decision Making; Environmental Sustainability; Corporate Social Responsibility and Impact; Corporate Strategy; Retail Industry

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January–February 2021
Article

Cross‐firm Return Predictability and Accounting Quality

By: Wen Chen, Mozaffar Khan, Leonid Kogan and George Serafeim

We test the hypothesis that if poor accounting quality (AQ) is associated with poor investor understanding of firms’ revenue and cost structures, then poor AQ stocks likely respond more slowly than good AQ stocks to new non‐idiosyncratic information that affects both... View Details

Keywords: Accounting Quality; Earnings Quality; Stock Returns; Investment Strategy; Accounting; Business Earnings; Quality; Investment Return; Investment; Strategy

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November 2014
Article

The Impact of Corporate Sustainability on Organizational Processes and Performance

By: Robert G. Eccles, Ioannis Ioannou and George Serafeim

We investigate the effect of corporate sustainability on organizational processes and performance. Using a matched sample of 180 U.S. companies, we find that corporations that voluntarily adopted sustainability policies by 1993—termed as High Sustainability... View Details

Keywords: Sustainability; Sustainability Management; Sustainability Research; Sustainability Reporting; Sustainability Targets; Corporate Social Responsibility; Corporate Accountability; Reporting; Corporate Governance; Investor Clientele; Investor Communication; Stock Market; Corporate Social Responsibility and Impact; Environmental Sustainability; Performance; United States

2021
Working Paper

Measuring Employment Impact: Applications and Cases

By: Katie Panella and George Serafeim

Applying the Impact-Weighted Accounts Initiative’s employment impact methodology on eight leading companies, we document wide variability in employment impacts as a percentage of salaries paid, ranging between 59 and 80 percent. We identify opportunities for... View Details

Keywords: Impact Measurement; Employee Compensation; Accounting; Employees; Labor; Well-being; Diversity; Wages; Compensation and Benefits

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

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

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

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

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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2021
Working Paper

Impact Accounting for Product Use: A Framework and Industry-specific Models

By: George Serafeim and Katie Trinh

This handbook provides the first systematic attempt to generate a framework and industry-specific models for the measurement of impacts on customers and the environment from use of products and services, in monetary terms, that can then be reflected in financial... View Details

Keywords: Impact Measurement; Product Impact; Customer Welfare; Environment; ESG; Product; Customers; Well-being; Environmental Sustainability; Measurement and Metrics; Accounting; Financial Statements; Analysis; Framework

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

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

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

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

Third Quarter 2018
Article

Why and How Investors Use ESG Information: Evidence from a Global Survey

By: Amir Amel-Zadeh and George Serafeim

Using survey data from a sample of senior investment professionals from mainstream (i.e., not SRI funds) investment organizations, we provide insights into why and how investors use reported environmental, social, and governance (ESG) information. Relevance to... View Details

Keywords: ESG; ESG (Environmental, Social, Governance) Performance; Sustainability; Investment Management; Investment Strategy; Metrics; Standard Setting; Accounting Standards; Finance; Investment; Information; Environmental Sustainability; Governance; Performance Effectiveness; Strategy

September 2016
Article

The Effect of Target Difficulty on Target Completion: The Case of Reducing Carbon Emissions

By: Ioannis Ioannou, Shelley Xin Li and George Serafeim

Targets are an integral component of management control systems and play a significant role in achieving desirable performance outcomes. We focus on a key environmental performance objective—reduction of carbon emissions—as a setting in which to examine how target... View Details

Keywords: Sustainability; Target-setting; Management Accounting; Management Accounting And Control Systems; Control Systems; Sustainable Development; Environment; Goals and Objectives; Climate Change; Management Systems; Accounting; Environmental Sustainability

Article

Market Reaction to and Valuation of IFRS Reconciliation Adjustments: First Evidence from the UK

By: Joanne Horton and George Serafeim

We investigate the market reaction to, and the value-relevance of, information contained in the mandatory transitional documents required by International Financial Reporting Standards (IFRS) 1 (2005). We find significant negative abnormal returns for firms reporting... View Details

Keywords: Valuation; Markets; Information; International Finance; Earnings Management; Stock Shares; Taxation; Goodwill Accounting; Price; Financial Reporting; Standards; Corporate Disclosure; United Kingdom

May 2011
Article

Consequences and Institutional Determinants of Unregulated Corporate Financial Statements: Evidence from Embedded Value Reporting

By: George Serafeim

I analyze Embedded Value (EV) reporting by firms with life insurance operations to assess the impact of unregulated financial reporting on transparency and to examine the institutional characteristics that promote unregulated reporting. Under EV accounting the present... View Details

Keywords: Financial Statements; Mergers and Acquisitions; Financial Reporting; Cash Flow; Contracts; Equity; Profit; Value; Corporate Disclosure; Governing Rules, Regulations, and Reforms; Business and Shareholder Relations; Business Earnings