Guidelines for Cost effective Agri environmental Policy Measures Improving the environmental performance of agriculture is a high priority in OECD and many non OECD countries. This will be of increasing concern in the future given the pressure to feed a growing world population with scarce land and water resources. Policy has an important role to play where markets for many of the environmental outcomes from agriculture are absent or poorly functioning.&nbsp;&nbsp;&nbsp;. This study focuses on the design and implementation of environmental standards and regulations taxes payments and tradable permit schemes to address agri environmental issues. It deals w