I have one question to ask: There are three types of risk: lower, higher, significant. Whereas it is possible to determine the significant risk based on various factors, how can we identify higher risk? how does it differ from significant risk?
I am not in my office until Tuesday, so I suggest you word search for “spectrum” in our notes. “Significant risk” is a defined term related to the spectrum of inherent risk. A significant risk must have a substantive audit response.
“Low” and “high/higher” are not technical terms, they simply have normal English meanings. Immaterial amounts by definition would have a low/negligible risk of material misstatement.