The longest recession in the past 80 years was about 18 months (2007-2009), but most were in the 8-10 month zone. I imagine once you're almost a year into a rec

The longest recession in the past 80 years was about 18 months (2007-2009), but most were in the 8-10 month zone. I imagine once you're almost a year into a recession you're going to be able to get a better feel for it and change tack if needed, though, if you're prepared to weather longer.