This document discusses measuring GDP using the product method. It explains that the product method measures GDP as the sum of value added by institutional units plus taxes and imports minus subsidies. There are two approaches under this method: the final product approach, which includes only final goods and services, and the value added approach, which adds the value of goods and services at each production stage. The document provides an example calculation of GDP using the final product method and concludes that the product method is a simple way to calculate GDP that is easy to understand and saves time compared to other methods.