CAJ | 학술논문

传统的公共品定义难以对公共品的供给低效率问题给出有力的解释，从公共品概念扩展的角度，探索提高公共品供给效率的理论基础成为近期公共经济学有待研究的重要问题。文章从供求两方面和个人参与物品供给决策或公共选择的角度，对公共品的概念进行新的扩展，将公共品视为软品和硬品的一种组合，并使用图解法初步给出公共品最优供给的均衡及其条件。
전통적공공품정의난이대공공품적공급저효솔문제급출유력적해석，종공공품개념확전적각도，탐색제고공공품공급효솔적이론기출성위근기공공경제학유대연구적중요문제。문장종공구량방면화개인삼여물품공급결책혹공공선택적각도，대공공품적개념진행신적확전，장공공품시위연품화경품적일충조합，병사용도해법초보급출공공품최우공급적균형급기조건。
Traditional definition of public goods can not interpret effectively the low supplying efficiency ot public goods and from the perspective of the extension of this concept, it has become an important issue in exploring the improvement of the supplying efficiency in recent public economic study. This paper extends the concept of public goods from the perspective of demand and supply and individual participation in choice of goods supply or public choice. It regards public goods as a combination of soft goods and hard ones and puts forward the optimum condition of balance by using diagram.