One option was a more traditional pay wall along the lines of the wall Street Journal, in which some parts of the site are free and some subscription-only.
一种是沿袭《华尔街日报》的传统路线，也就是说，站点的部分内容免费，其余内容收费。
2
Ariely ran an experiment and found that when only the two "real" choices were offered, more people chose the less expensive digital subscription.
艾瑞里做了一个实验，发现在仅有两种“真正的"选择时，更多的人会选择更便宜的数字订阅方式。
3
But each subject can only belonged to one subscription.