User talk:Techknowit

December 2013
Hello, I'm SamX. Your recent edit to the page Opportunity cost appears to have added incorrect information, so I have removed it for now. If you believe the information was correct, please cite a reliable source or discuss your change on the article's talk page. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. — SamX‧☎‧✎‧ S  00:14, 4 December 2013 (UTC)