Abstract
There are a large number of trading activities going on all the time in the economic system. From a macro perspective, these trading activities are characterized by great randomness. To describe and establish the law of economic system operation, an economical and effective approach is to use statistical methods to establish statistical equations for the system.
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According to the National Bureau of Statistics of China, industrial enterprises above the designated size refer to industrial enterprises whose main business income is above RMB 20 million yuan.
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Wang, Z. (2019). System Equation. In: The Principle of Trading Economics. Springer, Singapore. https://doi.org/10.1007/978-981-15-0379-5_15
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DOI: https://doi.org/10.1007/978-981-15-0379-5_15
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Online ISBN: 978-981-15-0379-5
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