Abstract Economic terminologies related to national production usually contain precise definitions, but have been misused often. This article clarifies the meaning and usage of these terms for readers' convenience. Furthermore, the traps in using these terms are introduced to allow readers to understand the limitation of their usage. In addition, the international comparison of economic production among eight largest countries has been conducted, and the relative place of Taiwan has further been positioned. At last, the often hot topic on the comparison between Taiwan and South Korea has been conducted and the limit of utilizing economic production measure has been discussed.
