tag:blogger.com,1999:blog-9077317.post485557358830431903..comments2023-09-16T09:01:40.541-04:00Comments on Advertising Lab: Study: Customer Service Boosts Stock PriceUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-9077317.post-69664657022838810532007-05-20T20:57:00.000-04:002007-05-20T20:57:00.000-04:00Very interesting blog. An investment strategy bas...Very interesting blog. An investment strategy based on NPS won't work. In fact, look closely at the London School of Economics paper. They measure revenue growth in 2004 and then did a study in the summer of 2005 to measure NPS. A major flaw in their research. If anything, the best assumption you could come up with is that revenue growth drives NPS.<BR/><BR/>How could you use data like that in an investment strategy. If that is the best data they can come up with, that tells us a lot.<BR/><BR/>There is enormous financial evidence published on the predictive capabilities of the ACSI.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-9077317.post-22561804875215007622007-05-18T14:14:00.000-04:002007-05-18T14:14:00.000-04:00This is not precisely what you were asking, but Mo...This is not precisely what you were asking, but Motley Fool referenced Net Promoter in an article called "Companies You Should Buy Right Now article":<BR/><BR/>"What makes a great company? That's the rub. There can be a lot of ways to measure greatness. eBay (Nasdaq: EBAY) and Southwest Airlines (NYSE: LUV), for example, have high net promoter scores."<BR/><BR/>Here is a link to the article:<BR/>http://www.fool.com/investing/general/2007/01/09/companies-you-should-buy-right-now.aspxAmy Madsenhttps://www.blogger.com/profile/16001474967844316329noreply@blogger.com