Introduction to research on Countryside Stewardship Policies (G. van Huylenbroeck et al.). Economic nature of stewardship: complementarity and trade-offs with food and fibre production (P. Gatto, M. Merlo). Policy indicators and a typology of instruments (F. Bonnieux, P. Dupraz). The invisible costs of implementation and administration (K. Falconer, M. Whitby). Farmers' attitudes and uptake (L. Drake et al.). Modelling regional production and income effects (O. Rohm, S. Dabbert). Estimating aggregate output effects (F. Sinabell et al.). Analysis of trade distortions (D. Damianos, Y. Barlas). Conclusions and recommendations (G. van Huylenbroeck, M. Whitby).