What is the importance of economics?

Nice selection of reasons from economicshelp
http://www.economicshelp.org/blog/33/economics/the-importance-of-economics/

Assumptions in economics

Thanks to tutor2u for this

http://beta.tutor2u.net/economics/blog/assumptions-in-economics

Unit 1: Introductory ideas presentation

.......from tutor2u

http://www.slideshare.net/tutor2u/as-micro-introductory-economic-concepts