Final answer:
The inventory technique described is cycle counting, a frequent physical inventory count part of inventory management, distinct from the concept of the balance of trade that measures trade differences between countries.
Step-by-step explanation:
The technique described is known as cycle counting, a physical inventory taking method in which inventory is counted on a frequent, often time-based schedule, instead of doing a full physical inventory at one time. This practice is typically part of an inventory management strategy used to maintain accurate stock records and can also help in identifying issues related to theft, damage, or misplacement of goods.
However, it is essential to differentiate that cycle counting is a tactic used within warehouses, distribution centers, or retail locations to manage inventory accuracy, whereas the balance of trade is an economic concept that reflects the difference in value between a country's imports and exports over a certain period.