The only relevant political reform is this: scrap proportional representation and go for district voting
this reduces corruption since it makes politicians more accountable
oh, sorry to inform, but democracy is the most striking case of principal-agent problem (did u read MGW chap 13 and 14?)
it works poorly because we are unable and havent the proper incentives to control our agents (that is u, the politicians); but theory and evidence suggest the problem is a bit attenuated by majority (district) voting...
closed lists is the worse thing to do, it hinders politicians incentives to behave well and increase incentives to please party leaders, like Dirceu and the likes
Dilma, go read persson and tabellini´s 2003 book and related papers first....i am tired and not willing to explain it further right now....we can talk later
good night, sweet dreams