[Grzqbmhy]

http://online.wsj.com/article/SB1000...155788364.html

I want to understand more about this.

Also, I found this comment interesting:

It's odd that the article has hundreds and hundreds of words, but never identifies the crucial issue -- how does this non-interest system work. What *exactly* is the mechanism of the "underlying assets" that constitutes the profits/earnings of this non-interest system. Didn't the reporter think the readers would be interested in the core issue of the article? Strange. Could it be that the reporter didn't find out how it works? Or was there just not enough room in the WSJ to include that detail? So what are the underlying mechanisms?