Evidence from six Mexican states is analyzed about changes in government or
ganisation and performance arising from decentralisation and the recasting
of federalism structures. Spurred by rising pluralism, greater electoral tr
ansparency, alternancia, and willingness of the Centre to 'let go', a more
genuine structure of shared powers is emerging between the executive (gover
nors), the legislature and the judiciary. The government bureaucracy is und
ergoing modernisation, and governors are seeking to share power with legisl
atures as a means of sharing the responsibilities of statecraft. Local cong
resses are exercising greater 'checks' and 'balances' vis-a-vis the executi
ve branch. Finally, the judiciary is beginning to be reorganised, particula
rly at the national (Supreme Court) level, where it is starting to develop
jurisprudence relating to inter- and intra-governmental relations.