让·巴蒂斯特·萨伊是法国资产阶级庸俗政治经济学的创始人。以他的名字命名的“萨伊定律”在现代也很有影响。他是继法国重农学派之后,大力提倡发展自由竞争资本主义的经济学家,他的学说以对亚当·斯密学说系统化和通俗化著称。他是李嘉图和西斯蒙第的同时代人,但他的学说与李嘉图和西斯蒙第有许多不同。他的学说为西方主流经济学的发展开创了道 Jean-Baptiste Say is the founder of the bourgeois political economy of France. His name, “Say’s Law,” is also very influential in modern times. He was an economist who advocated the development of free competition for capitalism after the French agronomists. His theory is well known for his systematization and popularization of the Adam Smith doctrine. He is a contemporary of Ricardo and Sismondi, but his doctrine is much different from Ricardo and Sismondi. His theory opened the way for the development of the mainstream economics in the West