I don't know what you are planning for this, but the bonuses of the current settings seem wrong in that it is best to go all free market or all central. It would be much better to have the bonuse for each side inclded in the other.
For example, a very shortened version - Currently Full free gives -25% production time and cost, one towards central gives 20% and so on while the same is true for central except for +IC. The center gives me neither, giving me no incentive to have anything but full on way or the other. It would be much better and more realistic to have the bonuses taper off as the slider is moved away, ie. full free market still gives a large just -production time/cost but one step right and it gives a smaller amount of that and a small amount of +IC. THe same would be true of central, with the -production time/cost only completly dissapearing at the last step. Now there is an incentive to have a mixed economy.
EDIT: This would actually ork well with a few of the other sliders as well.
For example, a very shortened version - Currently Full free gives -25% production time and cost, one towards central gives 20% and so on while the same is true for central except for +IC. The center gives me neither, giving me no incentive to have anything but full on way or the other. It would be much better and more realistic to have the bonuses taper off as the slider is moved away, ie. full free market still gives a large just -production time/cost but one step right and it gives a smaller amount of that and a small amount of +IC. THe same would be true of central, with the -production time/cost only completly dissapearing at the last step. Now there is an incentive to have a mixed economy.
EDIT: This would actually ork well with a few of the other sliders as well.