I chose the GRI's G4-EC1 indicator which looks at the EVG&D (Economic Value Generated and Distributed) and the EVR (Economic Value Retained).  The reason for this decision is that it gives some idea of the contribution of the business to society in terms of stimulating the economy and therefore indirectly providing jobs in support industries.  This is important because a company's direct employment statistics provide only a narrow understanding of a companies economic impact on society. Also a negative EVR shows that although a company is generating and distributing economic value it is not sustainable as it is destroying economic wealth.

I have followed the GRI's methodology (detailed in the metrics methodology sections) and have created three metrics EVG, EVD and EVR which together provide an overview on the G4-EC1 indicator.