关键词: 供给, 需求, 萨伊定律, 凯恩斯定律, 供给侧

Abstract: Says law, stated as “supply creates demand” by Keynes, has long been criticized by modern mainstream economics to be valueless theoretically and practically. However, supply and demand are dialectically interrelated in real economic world. Therefore, “creating something with no demands is equivalent to creating something with no value” is the very verity of Says law. If supply surplus exists in economy, it reflects the aimlessness of social production and will undermine macroeconomic growth and its sustainable development. Thus, in terms of the serious production surplus in certain fields of China economy, it is necessary to moderately expand aggregate demand and implement structuredreform strategy from the supply side.

Key words: supply, demand, Says law, Keyness law, supply side