Abstract
This paper reviews the traditional
input-output models and analyzes their potential problems and preliminary
improvement research. According to the principle of the national economic
accounting system, foreign departments are added in the first quadrant of the
traditional input-output table. The biochemical input-output model of import
and export solves the import and export problems that have plagued the
input-output research, and integrates and expands the advantages of import
tabulation matrix, MRIO and other tables and models. It has laid a solid
foundation for correctly using input-output data to analyze national economy,
regional economy and global economy.
JEL classification numbers: E16.
Keywords: Import, Export, Input-output Table, Input-output Model, Foreign
Sector.