Table 9.

Regression analysis results for the quality-effect.

Dependent variable: Quality-Effect (WTP 0%, 5%, 10%, 20)		Generalized ordered logit model
Independent variables		Qv = 0		Qv = 1		Qv = 2
		Coeff.	t-statistic	Coeff.	t-statistic	Coeff.	t-statistic
Fairness of PPR vaccine prices	Yes*
	No	−2.911	0.000	−2.592	0.000	−1.565	0.000
Benefit of vaccination	Yes*
	No	−1.722	0.019	−1.722	0.019	−1.722	0.019
Some vaccines better than others	Yes*
	No	−0.956	0.001	−0.956	0.001	−0.956	0.001
Participation to vaccination campaign	Yes*
	No	0.528	0.336	0.528	0.336	0.528	0.336
Livestock production system	Extensive*
	Semi-intensive	−0.838	0.026	−0.838	0.026	−0.838	0.026
	Intensive	−0.214	0.858	−0.214	0.858	−0.214	0.858
Constant		4.018	0.000	3.592	0.000	2.458	0.000

^*Reference category.