I am dealing with a company profile that was established in 2005. For most of the variables, the information is available either till 2021 or 2018.
My concern is whether a time series ARDL application for 2005-2018 or 2005-2021 will be enough to report acceptable results or not. Since the company is established recently, there is no other way to increase the time period also. If possible, is there any study or reference that has applied such short time period data for time series analysis?
Thank you in advance for all your suggestions and opinions.