DamonHD - 11:21 pm on Dec 30, 2006 (gmt 0)

QG: making someone pay $50 with no competition makes perfect sense if G thinks the ad is misleading or wrong or low "quality". That is not the same as saying "right" but it may make "sense".

sJWD: Chances are that the LPQ algo "overshot" and has been manually adjusted or has of its own accord moved back to be nearer the sweetspot. Goal-seeking algos can take a while, even in the absence of noise such as poor-quality new/existing advertisers trying to "work round" the fact that they are wasting the users' time and advertisers' money. Goal-seeking / optimisation / minimisation algorithms usually DO overshoot, else they cannot tell that they have gone too far.

Rgds

Damon