DEAN Harris ("Kill coal and the Hunter is done for" Letters 17/10) says the mining tax has had a huge part in mines shedding jobs.
I have worked in coalmines for more than 30 years. It has always been a boom-and-bust industry, with the market determining whether it booms or busts.
As with anything, when you overproduce, the price will drop, and when the demand is greater than the supply, the price will rise.
With the recent huge expansion in the industry we are once again seeing supply and demand factors at play. Blaming the mining tax is just falling for Tony Abbott's reckless rhetoric.
Robert Watson, Swansea