This paper evaluates the effect of two policy changes on the efficiency of Italian regional governments in the provision of health care services: first a change in the electoral system, second a process of fiscal decentralisation. The paper provides two main contributions: (1) a comprehensive analysis of the two main reforms that involved Italian regional governments and the health care sector during the 1990s, (2) the evaluation of the impact of the electoral reform in a quasi-experimental setting. Final results are in line with recent theoretical predictions that show a positive relationship between government efficiency and the electoral accountability enhanced by institutions such as electoral rules and fiscal decentralisation.