Using the US and Mexico as the main example, this unit examines how inequalities in access to material wealth can lead to border tensions. You will also learn how many developed economies are now reliant on immigrant labour to perform jobs that their own citizens do not want to consider. How equal is the globalised world? This study unit is just one of many that can be found on LearningSpace, part of OpenLearn, a collection of open educational resources from The Open University. Published in ePub 2.0.1 format, some feature such as audio, video and linked PDF are not supported by all ePub readers.