what is the Self-identification approach below? i don't think it was mentioned in the lecture. can you please compare it with holding and return based approach please? thanks
"Self-identification is the best way to classify Lunnar Hedge-X’s strategy. As a non-standard hedge fund that extensively uses short positions and derivatives, the description in the fund’s prospectus becomes the key source of information for those assigning a style. Neither a holdings-based approach nor a returns-based approach is likely to help classify Lunnar Hedge-X’s approach."