P&L test: A publication is not "more particular" if it does not add direct value to the actual returns.
If the investment logic of the study does not generate tangible benefits, its conceptual sophistication is of no importance.
We must judge the usefulness of a portfolio construction report by its impact on the realized value, not its position in an abstract hierarchy of studies.
For example, a report that does not consider the SEBI limits on retail investments in India would have no practical utility for local investors.