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    Gunnar Trumbull

    Gunnar Trumbull is the Phillip Caldwell Professor of Business Administration at Harvard Business School.

    Professor Trumbull’s primary area of expertise in political economy, with a focus on consumer and regulatory politics. His book Strength in... View Details

    Keywords: agribusiness; consumer products; credit card; financial services; food; food processing; grocery; microfinance; retail financial services; retailing
    • 14 Dec 2010
    • Working Paper Summaries

    Regulating for Legitimacy: Consumer Credit Access in France and America

    Keywords: by Gunnar Trumbull
    • 27 Jan 2011
    • Working Paper Summaries

    A Brief Postwar History of US Consumer Finance

    Keywords: by Andrea Ryan, Gunnar Trumbull & Peter Tufano; Banking
    • 12 Dec 2012
    • Research & Ideas

    Power to the People: The Unexpected Influence of Small Coalitions

    Harvard Business School Professor J. Gunnar Trumbull balks at the ubiquitous idea that the concentrated power of a few billionaires controls public policy and government regulation. Exaggeration of the... View Details
    Keywords: by Kim Girard
    • 12 Dec 2012
    • Research & Ideas

    Book Excerpt: Strength in Numbers

    Professor Gunnar Trumbull disagrees. In his new book, Strength in Numbers: The Political Power of Weak Interests, Trumbull shows how groups such as consumers can effect change... View Details
    Keywords: Re: Gunnar Trumbull
    • Web

    Courses by Faculty Unit - Course Catalog

    and Entrepreneurial Management) Geoffrey Jones Fall 2025 Q1Q2 3.0 Global Climate Change (also listed under Strategy) Gunnar Trumbull Fall 2025 Q1Q2 3.0 Globalization and Emerging Markets Reshmaan Hussam... View Details
    • Web

    Courses by Title - Course Catalog

    Spring 2026 Q4 1.5 Getting Things Done: Motivating Yourself and Others Negotiation, Organizations & Markets Ashley Whillans Fall 2025 Q1Q2 3.0 Global Climate Change Business, Government & the International Economy, Strategy Gunnar View Details
    • Web

    Courses by Faculty - Course Catalog

    Management Fall 2025 Q1Q2 3.0 Gunnar Trumbull Global Climate Change Business, Government & the International Economy, Strategy Fall 2025 Q1Q2 3.0 ^ back to top V Course Title Area Term Quarter Credits Derek... View Details
    • Web

    Courses by Faculty Unit - Course Catalog

    and Entrepreneurial Management) Geoffrey Jones Fall 2025 Q1Q2 3.0 Global Climate Change (also listed under Strategy) Gunnar Trumbull Fall 2025 Q1Q2 3.0 Globalization and Emerging Markets Reshmaan Hussam... View Details
    • 07 Aug 2006
    • Research & Ideas

    Whatever Happened to Caveat Emptor?

    Many of us learned at an early age the expression caveat emptor, or let the buyer beware. The phrase conjured up an image of a roiling, rollicking market that consumers best entered equipped for battle and prepared for disappointment—or worse—if a product went bad.... View Details
    Keywords: by Sean Silverthorne; Retail
    • 10 May 2023
    • Video

    How Climate Is Central to Every Business

    • 23 Nov 2010
    • First Look

    First Look: November 23

    http://www.hbs.edu/research/pdf/11-048.pdf Regulating for Legitimacy: Consumer Credit Access in France and America Author: Gunnar Trumbull Abstract Theories of legitimate regulation have emphasized the role... View Details
    Keywords: Sean Silverthorne
    • 09 Sep 2014
    • First Look

    First Look: September 9

      Publications September 2014 Cambridge University Press Consumer Lending in France and America: Credit and Welfare By: Trumbull, Gunnar Abstract—Why did America embrace consumer credit over the course of the twentieth century, when most... View Details
    Keywords: Sean Silverthorne

      Strength in Numbers: The Political Power of Weak Interests

      Many consumers feel powerless in the face of big industry’s interests. And the dominant view of economic regulators (influenced by Mancur Olson’s book The Logic of Collective Action, published in 1965) agrees with them. According to this... View Details

      • 04 Mar 2015
      • News

      Focus on food

      • 30 Jan 2024
      • Cold Call Podcast

      Can Second-Generation Ethanol Production Help Decarbonize the World?

      Keywords: Re: Gunnar Trumbull; Energy
      • 2012
      • Book

      Strength in Numbers: The Political Power of Weak Interests

      By: Gunnar Trumbull
      This book investigates the sources of interest group influence on public policy. Trumbull argues that diffuse groups like consumers are more influential, and industry less influential, than we commonly assume. View Details
      Keywords: Government and Politics; Interests; Power and Influence; Demand and Consumers; Policy
      Related
      • 15 Aug 2018
      • News

      Put away that credit card. You need to use cash more

      • 01 Jan 2003
      • News

      • 15 Mar 2010
      • HBS Case

      Developing Asia’s Largest Slum

      were launched in 2004; expressions of interest were invited in June 2007, but in July 2009, the government postponed the call for bids just a few hours before deadline.) Taught For The First Time The case elicited a broad range of student responses when HBS associate... View Details
      Keywords: by Julia Hanna; Construction; Real Estate