Zinc pinch-point graph

A 'pinch-point' is the level of inventories of a commodity or product below which consumers of that commodity or product become concerned about security of supply.  When inventories are below the pinch-point, small changes in the balance of supply and demand can cause...

USA Electricity End-Use

USA electricity end-use is divided broadly equally into a) residential, b) commercial, and c) industrial usage, with d) transport usage being miniscule. From about 1973, electricity usage was roughly evenly split between residential, commercial and industrial. The...

Share of Global Copper Demand

The shifts in economic power or influence over time can be seen in Glencore's graph of copper demand, showing the rise and demise of British economic power, followed by USA (rise and demise), and now an emerging Chinese economic influence rising.