Introduction:
In the study of macroeconomics, understanding the classification of goods is crucial. Goods can be classified as intermediate or final, depending on their usage in the production process. In this context, let's analyze whether postage stamps purchased by a business unit can be classified as an intermediate or final good.

Definition of Intermediate Goods:
Intermediate goods are those goods that are used in the production process but are not directly consumed by the end consumer. These goods are used as inputs for further production or as raw materials. They undergo further processing before becoming part of the final product.

Definition of Final Goods:
Final goods are the end products that are directly consumed by the end consumer. They do not undergo further processing and are ready for consumption.

Analysis:
To determine whether postage stamps purchased by a business unit are intermediate or final goods, we need to consider their usage and purpose.

1. Usage in Production Process:
Postage stamps are typically used by businesses for mailing purposes. They are used to affix on envelopes or packages to indicate that the postage has been paid. In this context, postage stamps purchased by a business unit can be seen as intermediate goods as they are used in the production process of mailing goods.

2. Direct Consumption:
Unlike other intermediate goods, postage stamps have a unique characteristic. They can also be used for personal purposes, such as sending personal letters or packages. In such cases, postage stamps are directly consumed by the end consumer and can be considered final goods.

Conclusion:
Considering the above analysis, it can be concluded that the classification of postage stamps purchased by a business unit as an intermediate or final good depends on their purpose and usage. If the postage stamps are solely used in the production process by the business unit, they can be classified as intermediate goods. However, if the postage stamps are used for personal purposes or directly consumed by the end consumer, they can be classified as final goods.

It is I/C