To address a key issue in functional time series analysis on testing the randomness of an observed series, we propose an IID test for functional time series by generalizing the Brock-Dechert-Scheinkman (BDS) test, which is commonly used for testing nonlinear independence. Similarly to the BDS...

To establish stock-versus-flow orientations of a commodity, the mediating role of inventories in price formation is considered. This framework is tested by examining responses of COMEX gold, silver, and copper to macroeconomic news releases. Standard responsiveness-tests, which ignore the role...