[Raapys]

That's not how it works. Each planet has a number of regions, depending on its size. Each of those regions has a mineral value, an organic value, a population limit, a population growth rate, an unrest value, a 'condition' value, a majority race( decides race modifiers ), and much more. In other words, regions are sort of like colonies in Space Empires, just in MoO you have several of these on each planet( i.e. just like on earth where you have some areas which are better for mining/farming and such; that's what these regions represent ).

Each region can take two 'DEAs' and a number of 'improvements'. These DEAs are basically like facilities in Space Empires; for instance, a Mineral DEA requires an amount of workers and will produce minerals depending on the region's Base Mining Efficiency, the improvements built in the region, and alot of other factors. You have other DEAs like Industry( basically SE's spaceyard ), Bioharvesting, Research, etc.

In addition to this you also have other facilities that are not built for any specific DEAs, and offer all sorts of benefits. Take System Stock Exchange, for instance, which increases all taxes gathered in the solar system by 10%, etc. The tax income is even decided by how much of the population is employed.

So yeah, I think it's an amazingly well-thought-out system.