Self-dealing is the conduct of a trustee, attorney, corporate officer, or other fiduciary that consists of taking advantage of their position in a transaction and acting in their own interests rather than in the interests of the beneficiaries of the trust, corporate shareholders, or their clients. According to the political scientist Andrew Stark, "[i]n self-dealing, an officeholder's official role allows her to affect one or more of her own personal interests." It is a form of conflict of interest.