I think it's just the economy is pretty large, and large things don't turn on a dime. Additionally, they're also sort of steering blind, as no one can predict f

I think it's just the economy is pretty large, and large things don't turn on a dime. Additionally, they're also sort of steering blind, as no one can predict future markets with perfect accuracy, and must rely on lagging indicators for direction. In other words, they know they need to turn around the ship, but it's slow to turn, and they don't know how much force they need exactly to get it to turn. They know that if they turn too fast, the ship can capsize, and if they turn too much they will overshoot. So slow and steady is the way they decide to go. Unfortunately, they tend to overshoot anyhow, as again, they rely on lagging indicators for direction.