Sarah E. Light

Sarah E. Light
  • Associate Professor of Legal Studies & Business Ethics

Contact Information

  • office Address:

    Jon M. Huntsman Hall, Suite 600
    3730 Walnut Street
    Philadelphia, PA 19104

Research Interests: Climate law and policy, environmental law and policy, private environmental governance

Links: CV, Wharton Risk Center Business, Climate, and Environment Lab, Penn Program on Regulation

Overview

Professor Light’s research examines issues at the intersection of environmental law, corporate sustainability, and business innovation. Her articles have addressed the regulatory implications of the rise of transportation platforms like Uber and Lyft; how business innovation, such as Microsoft’s adoption of a private carbon fee, can be a form of private environmental governance; and the U.S. military’s role in stimulating private technological innovation to reduce fossil fuel use.  Her articles have appeared in the Stanford Law Review, the Columbia Law Review, the Duke Law Journal, the UCLA Law Review, and the Vanderbilt Law Review, among others.

In 2019 and 2018, Professor Light was awarded Wharton Teaching Excellence Awards. In 2017, Professor Light was awarded an Excellence in Teaching Award in the MBA Program. In 2016, Professor Light was one of ten faculty nominated by the MBA student body for the Helen Kardon Moss Anvil Award for Outstanding MBA Teaching.

Education

JD, Yale Law School, 2000

M. Phil, Politics, Oxford University (Rhodes Scholar), 1997

A.B., Social Studies, Magna Cum Laude, Harvard University, 1995

Academic Positions Held

The Wharton School:

Associate Professor of Legal Studies and Business Ethics (with tenure), 2019-present.

Assistant Professor, 2013-2019.

Princeton University, Law and Public Affairs Fellow, 2019-2020.

Previous appointments: Columbia University, Lecturer, Earth Institute; Brooklyn Law School, Visiting Assistant Professor; Fordham Law School, Adjunct Associate Professor.

Other Positions

Assistant United States Attorney for the Southern District of New York, Civil Division, 2001-2011.

Chief, Environmental Protection Unit, United States Attorney’s Office for the Southern District of New York, Civil Division, 2007-2011.

Law Clerk, Honorable John M. Walker, Jr., Court of Appeals for the Second Circuit, 2000-2001.

Pro Bono

Pro Bono Mediator, United States District Court for the Southern District of New York.

Pro Bono Mediator, New York Peace Institute.

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Research

  • Sarah E. Light and Christina Skinner (2021), Banks and Climate Governance, Columbia Law Review, 121, pp. 1895-1956.

    Abstract: Major banks in the United States and globally have begun to assert an active role in the transition to a low-carbon economy and the reduction of climate risk through private environmental and climate governance. This Essay situates these actions within historical and economic contexts: It explains how the legal foundations of banks’ sense of social purpose intersect with their economic incentives to finance major structural tran­sitions in society. In doing so, this Essay sheds light on the reasons why we can expect banks to be at the center of this contemporary transition. This Essay then considers how banks have taken up this role to date. It proposes a novel taxonomy of the various forms of private environmental and climate governance emerging in the U.S. banking sector today. Fi­nally, this Essay offers a set of factors against which to normatively assess the value of these actions. While many scholars have focused on the role of shareholders and equity in private environmental and climate govern­ance, this Essay is the first to position these steps taken by banks within that larger context.

  • Sarah E. Light (2020), National Parks, Incorporated, University of Pennsylvania Law Review, 169, pp. 33-109.

    Abstract: Public lands and private enterprise exist in an uncomfortable equilibrium. Since their founding, the national parks have embraced some forms of private enterprise, including privately-run accommodations, to bring members of the public to the parks to enjoy and appreciate their beauty. Corporations have provided financial support to the national parks through philanthropy. And private firms have benefitted from marketing their associations with the parks. Marketing campaigns that call on the feeling of being in the woods and philanthropy to the parks that may benefit corporations by association do not deplete resources or ruin aesthetic experiences like a strip mine would. Yet they nonetheless in some fashion dilute the essential publicness of the national parks. In debates over the purpose of public lands and the proper role of private enterprise within them, relationships between private firms and public lands in which the firms neither extract commodities from the parks nor physically harm them have not received sufficient attention. This Article makes three claims. First, as a descriptive matter, it identifies a set of non-extractive relationships between private firms and national parks as a distinct phenomenon. Second, as a normative matter, the Article argues that these relationships deserve greater attention in both policy and scholarship because they shed light on important questions about the significance of the public in national parks. Finally, as a prescriptive matter, the Article concludes that these non-extractive relationships between private firms and the national parks warrant clearer restrictions in government policy to preserve the essential publicness of these lands.

  • Sarah E. Light and Carolyn Kousky (2019), Insuring Nature, Duke Law Journal, 69, pp. 323-376.

  • Sarah E. Light (2019), The Role of Universities in Private Environmental Governance Experimentalism, Organization & Environment, 34, pp. 466-483.

  • Sarah E. Light (2019), The Law of the Corporation as Environmental Law, Stanford Law Review, 71 (1).

  • Sarah E. Light (2018), Regulatory Horcruxes, Duke Law Journal, 67 (8/2).

  • Sarah E. Light, “The Role of the Federal Government in Regulating the Sharing Economy”. In Cambridge Handbook on the Law of the Sharing Economy, edited by Nestor Davidson, Michèle Finck, and John Infranca, (Cambridge Univ. Press, 2018), (2018)

  • Eric Biber, Sarah E. Light, J. B. Ruhl, James Salzman (2017), Regulating Business Innovation as Policy Disruption: From the Model T to Airbnb, Vanderbilt Law Review, 70 (5), pp. 1561-1626.

  • Sarah E. Light (2017), Advisory Nonpreemption, Washington University Law Review, 95 (2), pp. 325-383.

  • Nicolas Cornell and Sarah E. Light (2017), Wrongful Benefit & Arctic Drilling, UC Davis Law Review, 50, pp. 1845-1909.

Teaching

LGST 806 Syllabus (Spring 2019): https://apps.wharton.upenn.edu/syllabi/2019A/LGST806408/

LGST 215/815 Syllabus (Spring 2019):  https://apps.wharton.upenn.edu/syllabi/2019A/LGST215401/

 

Current Courses

  • LGST299 - Seminar In Law & Society

    A study of the nature, functions, and limits of law as an agency of societal policy. Each semester an area of substantive law is studied for the purpose of examining the relationship between legal norms developed and developing in the area and societal problems and needs. Please see department for current offerings.

    LGST299001 ( Syllabus )

Past Courses

  • LAW 518 - NEGOTIATIONS

    This course examines the art and science of negotiation, with additional emphasis on conflict resolution. Students will engage in a number of simulated negotiations ranging from simple one-issue transactions to multi-party joint ventures. Through these exercises and associated readings, students explore the basic theoretical models of bargaining and have an opportunity to test and improve their negotiation skills. Cross-listed with MGMT 691/OIDD 691/LGST 806. Format: Lecture, class discussion, simulation/role play, and video demonstrations. Materials: Textbook and course pack.

  • LAW 634 - ENVIRONMENTAL LAW

  • LGST215 - ENVT'L MGMT LAW & POL

    This course provides an introduction to environmental management by focusing on foundational concepts of environmental law and policy and how they affect business decisions. The primary aim of the course is to give students a deeper practical sense of the important relationship between business and the natural environment, the existing legal and policy framework of environmental protection, and how business managers can think about managing their relationship with both the environment and the law.

  • LGST299 - SEMINAR IN LAW & SOCIETY

    A study of the nature, functions, and limits of law as an agency of societal policy. Each semester an area of substantive law is studied for the purpose of examining the relationship between legal norms developed and developing in the area and societal problems and needs. Please see department for current offerings.

  • LGST806 - NEGOTIATIONS

    This course examines the art and science of negotiation, with additional emphasis on conflict resolution. Students will engage in a number of simulated negotiations ranging from simple one-issue transactions to multi-party joint ventures. Through these exercises and associated readings, students explore the basic theoretical models of bargaining and have an opportunity to test and improve their negotiation skills. Cross-listed with MGMT 691/OIDD 691/LGST 806. Format: Lecture, class discussion, simulation/role play, and video demonstrations. Materials: Textbook and course pack.

  • LGST815 - ENVT'L MGMT LAW & POL

    This course provides an introduction to environmental management with a focus on law and policy as a basic framework. The primary aim of the course is to give students a deeper practical sense of the important relationship between business and the natural environment and to think critically about how best to manage this relationship.

  • MGMT691 - NEGOTIATIONS

    This course examines the art and science of negotiation, with additional emphasis on conflict resolution. Students will engage in a number of simulated negotiations ranging from simple one-issue transactions to multi-party joint ventures. Through these exercises and associated readings, students explore the basic theoretical models of bargaining and have an opportunity to test and improve their negotiation skills. Cross-listed with MGMT 691/OIDD 691/LGST 806. Format: Lecture, class discussion, simulation/role play, and video demonstrations. Materials: Textbook and course pack.

  • OIDD691 - NEGOTIATIONS

    This course examines the art and science of negotiation, with additional emphasis on conflict resolution. Students will engage in a number of simulated negotiations ranging from simple one-issue transactions to multi-party joint ventures. Through these exercises and associated readings, students explore the basic theoretical models of bargaining and have an opportunity to test and improve their negotiation skills. Cross-listed with MGMT 691/OIDD 691/LGST 806. Format: Lecture, class discussion, simulation/role play, and video demonstrations. Materials: Textbook and course pack.

  • PPE 498 - DIRECTED HONORS RESEARCH

    Student arranges with a faculty member to do research and write a thesis on a suitable topic. For more information on honors visit: https://ppe.sas.upenn.edu/study/curriculum/honors-theses

Awards and Honors

  • Winning Article, Land Use and Environment Law Review, The Law of the Corporation as Environmental Law, 2020 Description

    Annual peer-selected compendium of leading articles in environmental law.

  • Top 20 Article, Environmental Law & Policy Annual Review, Insuring Nature, 2020 Description

    Annual compendium of the year’s “best environmental law or policy ideas” in the legal academic literature.

  • Wharton Teaching Excellence Award, 2019
  • Trustees’ Council of Penn Women’s 25th Anniversary Award for Excellence in Advising, 2019
  • Wharton Teaching Excellence Award, 2018
  • Winner, Alliance for Research on Corporate Sustainability (ARCS) Emerging Sustainability Scholar Award, 2018 Description

    The ARCS Emerging Sustainability Scholar Award recognizes a scholar in the area of corporate sustainability who is likely
    to make significant contributions to the advancement of corporate sustainability scholarship. The award will be granted
    in recognition of a scholar’s existing body of research and in anticipation of the scholar’s research trajectory. The
    selection committee will look for candidates with rigorous and salient contributions that cross disciplinary and national
    boundaries.

  • Honorable Mention, Environmental Law & Policy Annual Review, Precautionary Federalism and the Sharing Economy, 2017 Description

    Sarah E. Light, Precautionary Federalism and the Sharing Economy, 66 Emory L.J. 333 (2017) was selected for Honorable Mention by the Environmental Law and Policy Annual Review, a joint publication of the Environmental Law Institute and Vanderbilt Law School. The article was selected as one of the seven “best environmental law or policy ideas” from a pool of “hundreds of law journal articles on environmental topics published between August 2016-and July 2017” by “environmental leaders from the academy as well as the public and private sectors.”

  • Winning article, Land Use and Environment Law Review, Parallels in Public and Private Environmental Governance, 2017 Description

    Annual peer-selected compendium of leading articles in environmental law.

  • Excellence in Teaching Award in the MBA Program, 2017
  • Academy of Legal Studies in Business Outstanding Proceedings Paper, for Precautionary Federalism and the Sharing Economy, 2016
  • People’s Choice Award, Alliance for Research on Corporate Sustainability (ARCS), for Precautionary Federalism and the Sharing Economy, 2016
  • One of ten faculty nominated by the MBA student body for the Helen Kardon Moss Anvil Award, 2016 Description

    The Helen Kardon Moss Anvil Award is awarded annually at Commencement to the one faculty member "who has exemplified outstanding teaching quality during the last year." A list of nominees is generated through a vote by MBA students and nominations from academic departments. The Anvil Award Selection Committee, comprised of student leaders, administrators and past Anvil Award winners, selects the recipient.

  • Environmental Law and Policy Annual Review, Winning Article, 2015 Description

    Sarah E. Light, The Military-Environmental Complex, 55 B.C. L. Rev. 879 (2014) was selected as one of the year’s “best law and policy-relevant ideas on the environment from the legal academic literature,” (one of four winners selected from over 400 articles), with abridged version reprinted in the Environmental Law & Policy Annual Review (2015).

  • Haub Environmental Law Distinguished Junior Scholar, 2015 Description

    The Haub Environmental Law Distinguished Junior Scholar Award is presented annually to an emerging junior environmental law professor who exhibits scholarly excellence and promise at an early stage in his/her career. The Haub School invites the award recipient to present his/her recent scholarship to the Haub community. The Haub Environmental Law Faculty solicits nominations from law professors throughout the country and selects a recipient from that pool of nominations.

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Latest Research

Sarah E. Light and Christina Skinner (2021), Banks and Climate Governance, Columbia Law Review, 121, pp. 1895-1956.
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In the News

Tackling the Climate Crisis: Can Business Lead the Way?

The first event in this year’s "Beyond Business" conversation series, hosted by Wharton Dean Erika James, focused on how firms and investors can lead the charge in addressing environmental issues.

Knowledge @ Wharton - 10/25/2021
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The Intersection of Advocacy and Academia: How Wharton Took Me to the Arctic

In today’s stay-at-home world, it’s hard to believe that this last semester began on the other side of the globe: visiting the Arctic Circle. This past January, I experienced the joys of 4-hour days and freezing temperatures at the Arctic Frontiers Student Forum in Tromsø, Norway, the largest city above…

Wharton Stories - 07/23/2020
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