Predictable cycles are standard fare in strategy texts. It matters, for example, whether your industry is primarily a slow-cycle market or a fast-cycle market (affecting the speed with which your competitive advantage is lost). It also matters whether you are on the pendulum swing toward or away from centralized management. And there are others. But the up-close-and-personal cycle I'm seeing this week is the one seen pretty universally across colleges and universities--it's the mid-semester slump. We (meaning students and faculty) know it's coming, think we're better prepared for it this time, and experience it anyway.
Learning from the past (history) or from others (case studies) gives us the intellectual ability to interpret our behavior, whether corporate or individual. Amazingly enough, very few of us seem to be able to change it much.