On the Front Office ==> Edit Financials page, market size is given a 1-20 scale. However, 10 produces the "Analysts currently the the market at HUGE message", and a 15 produces an ASTRONOMICAL rating. Either the rating scale or the message has to be wrong.
Initially, I assumed that the Edit Financials page just had an incorrect label for the rating scale, and that it is really a 1-10 rating. That may be the case, but I am not so sure.
Other relevant facts:
* The "import from 2006" places market ratings on a 1-10 scale, whether that is correct or not.
* Several people have reported that AI teams tends to run in the red over time. Most recently
here... This may or may not be related to market size irregularities.
* When, as a commish, I was asked to look at the beta for five days before release, I pointed out that the AI tended to run in the red. Another beta tester, as I recall, felt that the problem was new and could be traced to problems with market size.