From the econometric results of the interval data method, it can be seen that the coecient of the gender variable is significant and negative. This implies that gender has a significant eect on WTP. The female respondents are more willing to pay for high welfare products. This result is consistent with previous literature. The coecient of the variable, nonp, was significant and positive, which implies that a consumer who does not only consider price is willing to pay more for high welfare products. The coecient of ag5 was positive and significant. This result implies that the group of respondents aged between 45 and 55 years old are more willing to pay than respondents in the reference group.