Write a research paper on financial complexities and their impact on firms’ investment decisions.The topic is too broad so try to be more specific about what exactly you are trying to focus. It looks like you are focusing on Firms.
So change your topic maybe to something like “Finance intricacies and its impact on firms’ investment decisions”
So modify your topic according to your objectives of your research. Be Specific.
Rest everything looks good.
Start your Review of Literature and try to see what work has already been done and identify the gaps. Then conduct your research by focusing on the gaps identified and then design your questionnaire to address those gaps.