Farm size

The size of farms are distinguished in three goups: small, medium and large (www.seamlessassociation.org). This is based on the size expressed in ESU (ESU = European Size Unit = 1200 euros standard gross margin (http://ec.europa.eu/eurostat/statistics-explained/index.php/Glossary:Standard_gross_margin_(SGM)). Small: < 16 ESU, large >= 40 ESU, medium: inbetween.