三大需求对GDP增长贡献率分析

消费、投资和净出口对国内生产总值（GDP）增长的贡献率是研究宏观经济的重要议题，影响三大需求对GDP增长贡献率的因素以及各因素的影响程度等问题为社会各界所关注。本文从消费、投资和净出口对GDP增长贡献率的计算方法入手，得出影响三大需求贡献率的因素有速度因素，结构因素和价格因素。其中同比情况下速度因素是贡献率变化的主因，环比情况下结构因素和速度因素共同影响贡献率。

Contribution Rates of the Three Key Demands to GDP Growth

Contribution rates of consumption, investment and net exports to GDP growth is an important macroeconomic topic. This paper focuses the method calculating the contribution rates of the three key demands to GDP growth, and gets the following results: the factors which influence the contribution rates of the three key demands are speed factor, structure factor and price factor. Speed factor is the main factor on year-on-year basis, speed factor and structure factor are main factors on month-on-month basis.