Supply is a flow concept justify?

Supply is considered a flow concept because it represents the quantity of goods and services that producers are willing and able to offer to the market over a specific period of time. Unlike a stock concept, which measures a quantity at a particular point in time, supply fluctuates based on factors such as production rates, resource availability, and market demand. This dynamic nature of supply allows it to change continuously, reflecting real-time economic conditions and business activities. Thus, it is best understood as an ongoing process rather than a static measure.