Dynamic stability refers to a system or mechanism that maintains its equilibrium by constantly making adjustments. It is the ability of an object, structure, or system to remain stable and balanced while undergoing changes in position, shape, or other characteristics. In other words, it's about keeping things in check even when there are fluctuations or disturbances. This concept can be observed in various fields such as engineering, biology, physics, and economics. For example, a bridge employs dynamic stability by constantly adjusting its components to maintain balance while people walk across it; an animal's body maintains equilibrium through constant muscle contractions and relaxations; and an economy can be said to have dynamic stability when it has the ability to self-correct and adapt to changes in demand, supply or other factors.