This week I've made two posts about different ways to think about risks in retirement. The first post ("Retirement Risks: It all starts with Longevity") is at Forbes and treats longevity risk as the overarching risk facing retirees, since the longer retirement lasts, the more exposed retirees are to other risks. The other main categories I described there are related to macro/market risks, inflation risk, and personal spending.
The second post ("Breaking down retirement risks") is at RetireMentors. In this post I distinguish risks with regard to whether they are risks to the asset (wealth) or liability (spending needs) side of the household balance sheet, and whether they are macroeconomic (impacting everyone simultaneously) or individual specific.