In on-line negotiation system, we found easily use system is very import and user willingly parleys with sellers many times to get accurate and reliable selling price.

• 线上议价机制部份，发现系统是否可提供易使用的环境是很重要的，使用者愿意在系统上与卖家多次议价，以得到更准确、可靠的价钱。