New Certificate Economics

Not very good I suppose. My expeerience told me that there are lots of errors and mix up my concept , especially for the chapter in GDP. The calculated results are mostly wrong.
I would suggest you to buy
Longman -- Living Economics
Because it is a bit harder than the CE and trigger u to think more. THe questions are better set
For MC -- Proficiency in Economics
I think it is quite good. Can clear my concept.