The Selection Effect of Productivity in the Economy

The more productive firms are in fact growing and winning out over the less productive ones. The selection effect of, you know, having the unproductive ones die out is actually a stronger effect than productivity increasing with infers. But that effect is real, but it's weaker than the effect of just having the ones that aren't doing so well die out. So things that keep firms around for a long time, like that allow firm to stick around for a short time, might be bad overall.