I'm bumping this so other people can see it. My plans for various countries:
USA: Deregulated economy, but Organized labor conditions as a result of long committment to high standards of living. Also, though its economic civic charges 25% more for corporate maintenance, this doesn't hurt that much because many corporations are based there, and hence, bring in money from all over the world. Also, the Presidential and Corporate Media civics balance it out.
European Union: I'm thinking this could be nearly anything other than Communist and Military-Industrial.
Japan: Traditionally a Corporatist economy as a result of being the host to many US corporations after WWII, but now it is beginning many corporations of its own, so it will probably turn into a Knowledge Economy in the course of the game.
China: Still a developing Corporatist system, which means that it selectively deals with foreign investors with the intention of bringing money into the state. Labor conditions are still primitive in many places; hence the Collective civic.
India: Corporatist, but unlike China, with a democratic political system. Labor conditions still poor in many places, but probably should start at Emancipation (which is low-tier in this mod), unlike China.
North Korea: Communist, Totalitarian holdover from a past era. May switch to Military-Industrial economy later.
Latin America: Depending on the country, could be Deregulated, Communist, Corporatist, or Grassroots. It is, after all, a very volatile region.
UAE: Corporatist, and I'm thinking of doing something to make oil more profitable under that civic. A simple gold bonus for wells should do the trick.