Michael Ewing Purves is the Chief Global Strategist and Head of Equity Derivatives Research at Weeden & Co., where he provides commentary on equities, precious metals, commodities and volatility.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: Michael Ewing Purves is the Chief Global Strategist and Head of Equity Derivatives Research at Weeden & Co., where he provides commentary on equities, precious metals, commodities and volatility. ### Response: .