Xác định phạm vi phân tích. Nghiên cứu ngành thông qua các cơ quan chính phủ độc lập. Thu thập nghiên cứu độc lập. Nghiên cứu dữ liệu hiệp hội thương mại. Tham khảo nghiên cứu học thuật. Thu thập dữ liệu thích hợp từ các nguồn trên.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
You might examine the industry as a whole or an industry segment which targets a particular subset of the general market. For example, you could be investigating the petrochemical industry as a whole, or a narrower niche, like US petroleum refineries. In either case, you’ll need to identify the companies that offer services or products similar to those which your company offers. You might also need to conduct some cross-industry research.  For example, a game developer may need to compile statis