Résumé : The EURECA model aims to predict aggregate final demand and costs for the European economies between 1978 and 1985. The model equations may be distributed between three modules - production, final demand and linkage. Since the macro-model is included in a medium term energy model, energy is explicitly present in all modules. The paper describes the main features of the model and equations, subdivided into sections corresponding with the modules. Appendices cover data sources and estimation techniques, definition of variables and stability tests. The complete model also appears in an Appendix. - Susan Owens