Modern public administration has gone through several phases since the 1950s: (1) development administration from the 1950s-1960s which focused on helping developing countries rebuild after WWII, (2) new public administration in the 1970s which addressed the "identity crisis" facing the field, (3) new public management in the 1980s-1990s which emphasized market-based reforms, and (4) governance which views public administration more broadly. Development administration aimed to help countries undergoing social and economic transformation through innovation management and the administration of development projects with Western aid. The Philippines also drew on development administration principles but faced its own "identity crisis" in defining an approach rooted to its own aspirations.