In other words, it increases production and lowers crime and pollution. That's what it did in CTP1. But in CTP2, it lowers crime and happiness, with no effect on production and pollution.
Are improvements getting their data from some other file? But if so, what's the point of improve.txt? Or did I just get an outdated file for some reason?
I'm pretty sure that there are a lot of old files still there that no longer have any effect on the game, and still show old CtP1 data.
It would be GREAT if an Activisioneer (or anyone else, for that matter) could give us a list of which files are actually used by CtP2 and which are just remainders from CtP1 that can be ignored...