The economy most definitely experiences stability when people and business are able to have a reasonable amount of confidence that things don't hit the fan at a

The economy most definitely experiences stability when people and business are able to have a reasonable amount of confidence that things don't hit the fan at any second now. This stability allows people to invest with more freedom, take more risk, and grow at a stable rate. Of course this behavior eventually overheats...but in terms of expectations there is definitely a stable state to an economy, even if it only last a few years.