Yeah, working harder to avoid a layoff in a big company doesn't really work out - by the time you know about the layoffs they've probably already made their decisions about who stays and goes anyway. Plus that higher rate of effort might be unsustainable and you end up leaving on your own accord anyway or burning out. Layoffs somewhat change the employment arrangement too for the people that stay: "we pay you the same but now you're expected to do the work of the missing people"