My suggestion: Have set targets for indexes. Such as you can set targets for your portfolio, and your country will buy and sell and take measures to meet that target, perhaps the same could be done with healthcare, education, transportation etc.
I was an education index of 150. ok!
country buys or demolishes schools (of each type) until that index is reached. then, it will try its best to maintain it as the population fluctuates.
what do you guys think?