公共政策是政治学、社会学中的常见概念,但并没有一个确定或公认的定义,作为一种理解政治变化的途径.公共政策的定义几乎与存在的政策问题一样多。著名法学家德沃金将“政策”(公共政策)界定为:“它们规定一个必须实现的目标.一般是关于社会的某些经济、政治或者社会问题的改善。”格斯顿认为公共政策是:“由那此掌握 Public policy is a common concept in politics and sociology but there is no definitive or accepted definition of it as a way of understanding political change.Public policy is defined almost as much as existing policy issues. The famous jurist Dworkin defines “policy” (public policy) as “they set a goal that must be achieved, generally about some economic, political or social improvement in society.” According to Kingston, public policy is : "That’s the master