Actual emissions trading, perhaps, but the theoretical concept has been in the literature for a while ... while the purpose of the marginalist economic tradition in the hands of your Goldman Sach's of the world is mostly to rationalize a public benefit for the accumulation of wealth, if it can be used to give posh sounding cover for a new financial product, that's good too.


I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.