Hypothetically we can't know because the questions to him, as asked and answered, take the means of production, wages, and prices as a function of a market as a given. He doesn't get around to saying what he'd do from scratch because he's not operating from scratch.
I'm not saying that the majority of his platform leans one way or another given the circumstances. That's too nuanced a debate to have, really. It means we must get in the mind of Bernie. What we can ask is what is he saying about his approach to solutions? What indications do we get about what would happen in a crisis? So far, it all points to his self-proclaimed philosophical bent.
I do know he's invested in the idea of a mandate for workers sharing in profits with their CEOs, a hallmark of democratic socialism. The link below is what happens when you delve a little further into Sanders's campaign promises. It's right there, and it's not Denmark.
https://berniesanders.com/issues/corporate-accountability-and-democracy/
I'm not sure how many times a guy can scream "socialist," run as independent, and generally have a platform that if it doesn't nationalize industries, sure comes close, to call him at his word.