Business ethics regulates businessmen’s behavior while participating in economic transactions to ensure that all parties not only serve their own interest, but also the public interest. Therefore, business and professional ethics focus on the effect to 3 levels :(1) Society or Public, duty to society, serve the public interest; (2) Organization or their professions,work to meet expectation or standards of professionalism, attain the highest levels of performance and meet the public interest
requirement; (3) Individual or personal, serve individual basic needs: credibility, highest quality of their job/products/service, confidence, professional competence and due care, and professional behavior.