Since there is a significant difference in the sample time span between the two estimation methods, there may be significant temporal differences in the effects on the export behaviour of micro-enterprises, which are also verified in the following sections. 4.3 The regression results of different industries The theoretical hypotheses of this paper assume that the impact of AI and industrial robots on firms’ exports is the result of the combined effect of productivity and substitution effects, and there is a significant difference between the positive productivity effect and the negative substitution effect for different types of industries.
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How can artificial intelligence boost firms' exports? evidence from China.
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