Final answer:
Benefits are often estimated without complete information, which is true. This can especially be seen in international trade, where intangible advantages and knowledge transfers are not easily captured in economic measures.
Step-by-step explanation:
The statement that benefits are often estimated without complete information is true. The estimation of gains, such as from international trade, is frequently difficult to quantify due to various factors that escape traditional economic statistics. In particular, the potential advantages to consumers from a diverse product range and increased competition are intangible and not easily measurable. Moreover, when firms engage in international trade and divide the value chain, there is often a transmission of knowledge that encompasses skills in production, technology, management, finance, and law. This transfer of knowledge, though significant, is another element that is difficult to capture and estimate in economic terms.