投资的经济学分析

Economic Analysis of Investment

投资有多义性,从一般投资概念到资本属性投资概念的变化是社会变革使然。经济学的投资是增加社会总资本,增加向社会提供产品和服务的能力,购买股票不是投资;金融学的投资认为,不论购买股票还是创办企业,只要实现资本增值都是投资。资本市场的资源配置、经济学的投资和金融学的投资在目的上已经融合。投资与消费两者的目的不同,投资与生产的区别在于在社会再生产过程中的资金循环和价值实现的时间不同。

There is various means of investment. And their variation from general investment to capital property investment is the result of social changes. They are different between economic investment and financial investment. In economic investment it means increasing total social funds and raising ability of offering products and services to the society, but it doesn’t make investment to purchase stocks, while in financial investment it holds that investment is achievement of funds’ increment regardless of purchasing stocks or founding enterprises. Based on the same purposes, distributions of resources in capital market, investment in economics and investment in finance have been merged. Though aims of investment and consumption are different, differences between investment and production lie in differences of achievement time of capital circulation in the process of social reproduction and achievement of social value.