Say also recognized the very real differences between industries of the time. The agricultural industry was different from the production industry. It included human industry which engaged in the collection of natural products. This activity was seen to contain a lower end value. On the other hand, the production or manufacturing industry was taken to be more valuable since it took natural product (with some value) and created new forms or end products that were of higher value than before. The key here was the combining function taken up by the entrepreneur. In return for his efforts he received the profits in “wages” for his effort plus interest and rent accrued to him in the process.