“…Most of the existing studies within production economics use a modelling approach based on expert information to assess the additional costs of production systems that increase the well‐being of farm animals compared to currently prevailing production systems (e.g. Den Ouden et al ., ; Bornett et al ., ; Lund et al ., ; Seibert and Norwood, ; Vosough Ahmadi et al ., ; Guy et al ., ; Majewski et al ., ; Harvey et al ., ) . While most of these studies use resource‐based animal welfare indicators, Jensen et al .…”