Why don't we just leave the Euro? Why can't we secretly print more money? What is a financial bubble? Why does talking economics give me a headache?!

Economics is a social science - something money crunchers forget when they talk about it in the media. In this series, Moncrieff is trying to go through some of the more frequent economic questions of our time and cut through the jargon to see how it pertains to our everyday lives ... minus the confused faces!

Walking us through is Susan Hayes, Managing Director of Hayes Culleton Ltd., a international financial training company based in Dublin. She has a degree in Financial Maths & Economics, is a Chartered Financial Analyst Level III Candidate, and writes a financial blog at www.thepositiveeconomist.com.

She has also released her first book, The Savvy Woman’s Guide to Financial Freedom which came out in January 2013 with Penguin Ireland.

This week we are asking why does the cost of a cup of coffee vary so much throughout the world?