The average shopper can't remember a time when fixed prices weren't the norm. After all, it's been well over a century since rounds of haggling was the way goods and services changed hands. Fixed prices were introduced in the early 1800s as an attractive new feature that could save consumers time, money, and emotional energy, and were a great benefit to merchants, too.

普通购买者已经想不起来从什么时候开始固定价格就已经不再是行规了。毕竟，货物和服务交易讨价还价是将近一个多世纪以前的事了。固定价格在19世纪早期引进，作为节省顾客时间、金钱和情感能量的新兴方式，同样也给商人带来了好处。

The benefits stuck, even in an era of e-commerce when consumers assume online stores offer lower prices without brick and mortar overhead and when comparison shopping is easier than ever.

这种好处依旧存在，哪怕是在这样一个在线商务时代，消费者认为在线商店提供的价格更低廉，因为不存在装修店面的开销，而且比较购物比以往更为便捷。

However, a new startup called PriceWaiter is bringing haggling back to e-commerce, and it's bringing a refreshingly human element to the online marketplace. The approach also highlights three behavioral economics concepts that play a big role in selling goods online:

然而，一家叫做PriceWaiter的新兴公司把讨价还价又带回电子商务中，给在线商场带来了新鲜人性化的元素。这一方式同样强调了在在线商品销售中起着重要作用的3个行为经济学的理念：

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