Front Matter -- Preface -- Acknowledgments -- Contents -- Tables, Figures, and Boxes -- Executive Summary -- 1 Introduction -- 2 Structural Impacts of Research -- 3 Structural Implications of Technology Transfer and Adoption -- 4 Structural Impacts of Public Investment in Agricultural Research -- 5 Drivers of Structural Change, Changes in Knowledge and Information, Implications for Policy -- References -- Appendix A Committee to Review the Role of Publicly Funded Agricultural Research on the Structure of U.S. Agriculture -- Appendix B Committee to Review the Role of Publicly Funded Agricultural Research on the Structure of U.S. Agriculture -- Appendix C -- Appendix D Economic Research Service Farm Typology -- About the Authors -- Board on Agriculture and Natural Resources Publications.