Keynesian theory of economic growth

例句：

1. 1. The Keynesiantheory of economic growth has been widely appliedin the development of modern economies.
   凯恩斯主义经济增长理论在现代经济的发展中得到了广泛应用。
2. 2.The Keynesian model is a populartool for analyzing the impact of government spendingon economic growth.
   凯恩斯模型是分析政府支出对经济增长影响的一种流行工具。
3. 3. TheKeynesian approach emphasizes the roleof government intervention in stimulating economicgrowth.
   凯恩斯主义方法强调政府干预在刺激经济增长中的作用。