Buiness Ethics - Article

I need a two-page article describing why Business Ethics have been the heart of many dissections over the years and continues to trouble employees and share holders. The article should discuss the following: Why it is hard for people to follow Business Ethics? How the code of ethics can affect the place you choose to work at? How the code of ethics can affect the types of questions you ask during an interview? What is the standard code of business ethics that everyone should follow?