合理投资率的实证分析

 合理的投资率（又称积累率）一直是世界各国经济学家关心的问题。包括美国在内的许多发达国家经济学家们担心由于这些国家的投资率太低，经济增长缺乏后劲。我国许多经济学家们则担心由于我国投资率太高，最终消费率太低而降低投资率，是投资者失去投资信心。因此，如果能确定一个合理的投资率，并将一国的投资与消费比例控制在这一水平上，对经济的可持续发张无疑是有益的。本文从理论上分析了经济增长与投资率、投资乘数、投资增长率的明确关系，并用包括我国在内的五国统计资料对这一关系进行了实证分析，在此基础上系统分析了我们合理投资率问题。

Empirical analysis of reasonable investment rate

Rational rate of investment has always been the matter of interest to the economists all over tha world. In this article, the author analyses theoretically the relations between economic growth and investment rate, investment multiplier and investment growth rate, makes empirical analyses on the relations by the statistical data of five countries including China. Based on this, the rational rate of investment in China is systematically analyzed.