Do you have to choose one after the other at "economic laws" or can you skip or freely choose one of these laws?
Seems there's only one possible which is listed below.
Or are there more than one active (some of them contrary to the other...?)
I think that you are free to choose the laws you want, but you have to meet the requirements. Also, what do mean that only one is possible? The law with different colour is the currently selected.