ABSTRACT
Ⅰ. Introduction
Ⅱ. Literature Review
2.1. Firm Digital Transformation, IT Investment and IT Productivity
2.2. IT Productivity Paradox and Explanations
2.3. IT Investment Competition in the Process of Digital Transformation
Ⅲ. Data and Method
3.1. Data
3.2. Method
Ⅳ. Results
4.1. Results for the Impact of IT Investment on Firm Financial Performance
4.2. Results for the Firm Financial Performance Under Different It Investment Time
Ⅴ. Conclusions
Ⅵ. Limitations
Acknowledgements