Research on Intertemporal Dynamic Effects About Perception of Internet Word of Mouth Based on Dynamic Endogeneity

Under the dynamic endogeneity, the control variables which can be measured and the dummy variables which are difficult to observation and measurement outside of online reviews are introduced. And in the dynamic panel data model with online reviews of mobile phone as the research object which were released during March 1, 2015 to July 1, 2015 from amazon.com, the endogeneity is controlled by the control variables and the dummy variables, the paper demonstrates that: In the dynamic analysis framework, it is found that there exists intertemporal influence between online reviews and iwom perception. But the lag phase is not sure. And feedback effect does not exist between the proportion of negative reviews and iwom perception. This shows that the intertemporal dynamic action is not mutual but in a single direction.