The Tax Reform Act of 1986 made DPPs much less valuable to investors, and so a lot of wealthy people switched from DPPs to REITs.

986年的税制改革法案,使得DPP对投资者不再那么有价值,所以很多富人从DPP转向REITs

耶鲁公开课 - 金融市场课程节选

Gas is plentiful but hard to move--hence, in most cases, much less valuable as it comes out of the ground.

FORBES: Magazine Article

But as sure as darkness follows the light, spam text is about to cloud the cleanest online communications channel making it that much less trustworthy and valuable.

FORBES: And so it begins: Spam Texting

Students are spending too much money to pursue credentials that are becoming less valuable.

FORBES: Peter Thiel Launches Early Stage Research Effort, Zaps Cleantech And Higher Education