ISO 9000 effect on return on investment, market share, sales growth, better sales margins and competitive advantage," "taking a quality approach is unrelated to ISO 9000 registration." In fact, ISO itself advises that ISO 9001 can be implemented without certification, simply for the quality benefits that can be achieved. Abrahamson argues that fashionable management discourse such as Quality Circles tends to follow a lifecycle in the form of a bell curve, possibly indicating a management fad. Pickrell argues that ISO systems merely gauge whether the processes are being followed. It does not gauge how good the processes are or whether the correct
ISO 50001 Denmark, France, Germany, Ireland, Japan, Republic of Korea, Netherlands, Singapore, Sweden, Taiwan, Thailand, New Zealand and the USA. Subsequently, the European Committee for Standardization (CEN) developed EN 16001:2009 "Energy management systems. Requirements with guidance for use" as a first international energy management standard. This was published in July 2009 and withdrawn in April 2012 as it had been superseded by ISO 50001. The United Nations Industrial Development Organization (UNIDO) recognized that industry around the world needed to mount an effective response to climate change. It also noted a proliferation of national energy management standards that were emerging as a response