凯恩斯之后西方投资理论的发展

凯恩斯之后,西方投资理论发展为基于投资的经济增长理论和经济发展理论,这是因为凯恩斯的投资理论仅仅属于短期稳定投资模型,将其发展为长期动态模型符合理论演进的内在逻辑。本文将按照理论发展的线索,首先阐述基于投资的经济增长理论及其模型,然后分析投资要素结构优化模型,最后阐释西方经济学家在投资要素贡献率的量化分析方面取得的进展。

The Development of Western Investment Theory after Keynes

After Keynes,western investment theory was developed to the theory of economic growth and economic development based on investment,this is because Keynes's investment theory merely belongs to a short-term stable investment model,and the long-term dynamic model tallies its development evolution intrinsic logic of the theory.Deferring to the theory development clue,this article will first elaborate economic growth theory and its model based on investment,then analyses the optimization model of investment factor structure,and finally explain the progress that western economists have made in the aspect of quantification analysis in the ratio of investment factors' contribution.