Lets start

Εconomic model

1) Work as manager: To work as manager dont help the market, too many products are produced with "low" cost ( maybe is useful only at the beginning of the game)

2)"If you travel to a country that has all resources, you can use them for production in your companies." : The wars between countries are meaningless, you just travel...

3) Each player should have one organization, the companies will be there. The organization could travel around the world and make companies. Licenses will have meaning.

4) Players must not be able to send products to each other. ( money with a limit per day eg. 5 gold per day) The official organization of each country could  send products  ( to new players, to strong players). No more "black" market.

5) Economic skill: an old player produce the same with a new player...

Military model

1) As you rise your strength every day ( with the same quality at Workout area)  the less progress will you have. The gap between a new and an old player should decreases. ( at the economic skill the same logic)

2) No reason to exist guns , heli, tanks: we could have one of them with bigger graduation between the qualities. 

One more: Too many medals i am playing 7 days and i have 5!! :P :P

Thank u