“…Experimental choice modelling originates from market research, but is increasingly used in environmental, agricultural and development economics, in, for example, the analysis of the effect of food labelling on consumer behaviour (Loureiro and Umberger, 2007;Rousseau and Vranken, 2013), environmental conservation (Hope et al, 2008;De Valck et al, 2014), and agricultural technology adoption (Ward et al, 2014;Lambrecht et al, 2015). Choice experiments have previously been used to assess contract preferences in developing countries, specifically to assess farmers' preferences for production and marketing contracts in Vietnam and Ethiopia (Schipmann and Qaim, 2011;Abebe et al, 2013), and for labour contracts of health workers in rural areas (Mandeville et al, 2014).…”