This paper, using Japanese market data, finds that although the correlation between equity markets and commodity market used to be negative or almost zero before around 2006, it has increased significantly after the global financial crisis in Autumn of 2008. In this sense, the commodity market...

As commodity markets have continued their expansion an extensive and complex financial industry has developed to service them. This industry includes hundreds of participating firms, including asset managers, brokers, consultants, verification agencies and a myriad of other institutions....