I have a problem while playing. Sometimes the game says that another playing is using my account, and then the game saves and quits. It's quite annoying. Do you know why this happen ? It never happened before this version

I have observed some games (without playing), and i didn't thought that crisis effect was so well designed.
Things with a great "necessity index" are loosing less than those with a lower one.
I saw a brutal change from 10% growth to -4% in a few months, and the change was very dramatic.
Gold rings fell from 39M$ market to 3/4M$, (necessity 10%)

whereas bread fell from 22M$ to 15M$ (70% necessity)

and cakes from 13M$ to 6-7M$ (50%) necessity.

Is there a mathematic link ?

I mean, falling from 40M$ to 4M$ is divided by 10, bread fall from a third (not far from 30%), and cakes lost 50%.

I would consider the game as really realistic when a lot of plants were closed during a depression.
If you play mostly in rents, you are impacted by crisis. But if not, you see nearly no impact.

Idem for unemployement which is quite unrealistic. Even during the most severe phase of depression (-4.5% for me), the unemployement never reached more than 5%. The reason is that the demand in not affected.

Ive had depressions of -5% and a boom of 7%.
In the depression, non essential items were severely punished! (Which is a good reflection)
SUGGESTION: In a boom there are no benefits to demand. If citywide demand goes down in a bust, it should go up in a boom- (but not by as much).

I support the demand of mwyeoh. The prices of houses and appartements are strongly connected to growth. BUT NOT THE DEMAND. It's highly problematic.
Can you manage to change the % of necessity of products in relation to growth ? This would greatly impact the game.
Some class of products would have a % variable. For example instead of 20% necessity, it would be 10%+(growth-3), which could lead to a range between 15 to 2%( it's just an example, of course). I know that programming necessity index different from one city to another, or linking necessity to the power of purchasing (which would be realistic) is very hard. But if you could manage to do something i think that it would be interesting. I support mwyeoh !

Some AI built back all their stocks until they are 100% controlled by them, and after that nothing happens anymore.

- Technology is still cheap. 200/250 tech costs 8M, whereas you have to wait 10 years with a 3x3 R&D center to make the same amount of technology. When you make 200 or 300M per year, it's nothing. I still think and claim that the amount should be linked to the size of the market.