Danksagung; Table of contents; List of tables; List of figures; Summary; Zusammenfassung; List of acronyms; 1 Introduction; 2 Literature review on the determinants of willingness-to-pay for organic food products; 3 Theoretical framework and economic model; 4 Survey design and data description for organic food products; 5 Organic food preferences, willingness-to-pay and discussion; 6 Preference anomalies and preference elicitation; 7 Conclusions; References; Appendices