Theory and practice of public sector reform Introduction : theory and practice of public sector reform Steven Van de Walle and Sandra Groeneveld An institutional perspective Johan P. Olsen A transformative perspective Tom Christensen and Per Laegreid A principal agent perspective Sandra Van Thiel An innovation perspective Victor Bekkers and Lars Tummers A change management perspective Joris van der Voet Ben S. Kuipers and Sandra Groeneveld A cultural theory perspective Christopher Hood An interpretive perspective R.A.W. Rhodes Reforming organizational structures Steven Van de Walle Bureaucrats and politicians : reform begets reform B. Guy Peters The shift toward network governance : drivers characteristics and Manifestations Erik Hans Klijn and Joop Koppenjan Management of human resources : trends and variation Sandra Groeneveld and Bram Steijn Public management reform and public professionalism Mirko Noordegraaf Recent shifts in public financial management Tiina Randma and Geert Bouckaert Public sector reform amidst societal and administrative shifts Kim Putters Two varieties of administrative reform : US vs. Europe Richard Stillman Becoming a student of reform Frans Bauke van der Meer Christoph Reichard and Arthur Ringeling