Garcia-Escribano, Ben Lockwood and Ernesto Revilla (2007), 'Why Focus On Spending Needs Factors? The Political Economy of …. -- Rodden, Jonathan (2006), 'The political economy of federalism', in Barry Weingast and Donald Wittman (eds), Oxford Handbook … of Political Economy, Oxford, UK: Oxford University Press. -- Shah, Anwar (ed.) (2008), Macro Federalism and Local …