I just realized that I never posted a finished business guide for Mafia Wars Moscow (Click to see full size):
There are 5 total businesses:
Unlicensed Taxi Stand (free business for going to Moscow)
Cigarette Smuggling Ring (unlock by completing Episode 1 chapter 3)
Black-Market Car Lot (unlock by completing Episode 2 chapter 3)
Munitions Trading Camp (unlock by completing Episode 4 chapter 3)
Trafficking Operation (unlock by completing Episode 6 chapter 3)
In Moscow, each business is exponentially more expensive. In other words, upgrading the cigarette smuggling ring fully is 3+ times cheaper than the Black-Market Car Lot, despite the fact that the Black-Market Car Lot only pays out twice as much.
What this means to the player is it is best to upgrade the cheapest business you have access to first. All in all, you will need to spend around $600,000,000 rubles to fully upgrade your businesses. Despite this high price tag, Moscow businesses are very good.
Moscow businesses pay out a lot. With all the businesses fully upgraded, you will earn about over 70,000,000 rubles per day or so, thereby repaying your initial investment in less than 10 days. Upgrade your businesses right away, especially after the recent change.