Abstract:Although nj bet365 is a common concept in Western mainstream economics，But from the perspective of ideological origin，Marx’s understanding of improving labor productivity contains the idea of ​​nj bet365。As an important content of labor productivity under socialized production conditions，nj bet365 is further reflected in the category of "socially necessary labor time" in two meanings。Re-examining nj bet365 from the perspective of Marxist political economy，And incorporate it into the theoretical system of socialist political economics with Chinese characteristics，It is the socialist political economy with Chinese characteristics that “does not forget the original”、Absorb foreigners、Vivid portrayal of "facing the future"。Practical level，Long-term rapid economic development brings about changes in production methods，Traditional growth accounting based on neoclassical growth theory is no longer suitable for the practical test of China’s nj bet365，It is necessary to start from Marx’s productive labor theory，Clear the departments involved in production labor，The nj bet365 and its changes calculated from this are more targeted。Based on the new era and new journey，As the key to achieving high-quality economic development in our country，Efforts to improve nj bet365 require a balance between long-term and short-term、Supply and demand、Total volume and structure, etc.，Promote quality changes in economic development in the coordinated development of supply and demand、Efficiency change and power change。