“…From an operational point of view, in some cases scholars have used values estimated by experts or by the farmers and not market prices (Boisvert et al, 1997;Borchers et al, 2014;Choumert and Phélinas, 2015;De Noni et al, 2019;Devadoss and Manchu, 2007;Drescher and McNamara, 1999;Lehn and Bahr, 2018;Maddison, 2000;Mela et al, 2012;Sills and Caviglia-Harris, 2009). As observed by some authors, the values derived by opinion survey tends to diverge from the market price and therefore its use cannot be considered correct for appraisal purposes (Bigelow et al, 2020;Ma and Swinton, 2012).…”