This companion web site provides a set of resources associated with the 4th edition of the textbook Natural Resource and Environmental Economics by Perman, Ma, McGilvray and Common. To access these resources, select the Main Menu link below and then choose the appropriate menu item. In the event of difficulty in accessing any material, please contact Roger Perman using the e mail link below. What follows below are a few web site navigation tips for all subsequent pages.

Each page in this web site contains the image near the top of the page. Clicking on this will take you back to the previous page.

Each page in this web site contains the image towards the foot of the page. Clicking on this will take you back to the Main Menu.