Study on the basic issues of the mass tort liability insurance Study on the basic issues of the impure crime of omission Study on the basic issues of contemporary capitalism Study of directors & officers liability insurance Research on the legal system of medical liability insurance Study on the basic issues of safeguarding overseas interests Study of directors and officers liability insurance 并列题名：Study on the basic issues of the impure crime of omission Study on mechanism and pricing method of food safety liability insurance Research on the system of Chinese environmental liability insurance