I don't know if any colleagues covering market failure now or in the near future might be interested in this photo essay on computer recycling. Raises some interesting issues and it shouldn't be hard for students to spot some external costs from reading it! The same section of the BBC site has some interesting stats and other interesting sections - or at least i thought they were interesting :-) You can find the photo essay on: http://news.bbc.co.uk/hi/english/static/in_depth/world/2002/disposable_planet/waste/chinese_workshop/default.stm Cheers, Andy B ---------------------- Andy Beharrell, Biz/ed Institute for Learning and Research Technology 8-10 Berkeley Square Bristol BS8 1HH Tel: 0117 928 7189 http://www.bized.ac.uk http://www.ilrt.bris.ac.uk [log in to unmask]