A useful link http://www.bbc.co.uk/news/business-42745853 relating to inequality, income and wealth.  See below where to find the relevant section in the specification for A Level Economics (Edexcel, AQA and OCR): 
Edexcel spec reference 4.2.2 Inequality
AQA spec reference 4.1.7.1 The distribution of income and wealth
OCR spec reference P 14 Distinguish between income inequality and wealth inequality 

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