Table 3.

Expected change in producer surplus, consumer surplus and total welfare when conventional rearing is replaced by welfare-friendly rearing, considering the possible ranges of demand and supply elasticities values. The minimum and maximum demand and supply elasticities values were according to the published literature, as detailed in Table S8.

	Demand elasticity
	Min -0.5	Aver -1.08	Max -2.75
Producer surplus change (billion $US)	1.1061 [1.089; 1.124]	0.9878 [0.973; 1.003]	0.9233 [0.909; 0.938]	Min 0.2	Supply elasticity
	1.3080 [1.288; 1.329]	1.3106 [1.291; 1.331]	1.3108 [1.291; 1.331]	Aver 0.42
	1.4469 [1.425; 1.47]	1.5824 [1.558; 1.607]	1.6821 [1.657; 1.709]	Max 0.6
Consumer surplus change (billion $US)	0.3734 [0.3677; 0.3793]	0.5957 [0.5866; 0.6051]	0.7156 [0.7047; 0.727]	Min 0.2
	0.2047 [0.2016; 0.2079]	0.3662 [0.3606; 0.372]	0.4708 [0.4635; 0.4783]	Aver 0.42
	0.0887 [0.0874; 0.0901]	0.1732 [0.1705; 0.1759]	0.2366 [0.2329; 0.2404]	Max 0.6
Total social welfare change (billion $US)	1.4795 [1.457; 1.503]	1.5835 [1.56; 1.608]	1.6389 [1.614; 1.665]	Min 0.2
	1.5127 [1.49; 1.537]	1.6767 [1.651; 1.703]	1.7816 [1.755; 1.81]	Aver 0.42
	1.5356 [1.512, 1.56]	1.7556 [1.729; 1.783]	1.9187 [1.889; 1.949]	Max 0.6

95% Confidence intervals appear in squared brackets, as calculated using a bootstrap procedure.