CAJ | 학술논문

交通建设＂两个路网体系＂,是今后中国公路基础设施供给实现效率与公平的重要举措。从公路产品的基本属性出发,提出了公路产品属性的纯度概念,在准公共产品框架下对公路产品的公共品属性进行了细分分析,并在此基础上对公路产品的供给模式进行了讨论。分析认为：公路产品纯度理论是交通建设＂两个路网体系＂的经济学基础;高速公路与普通公路是2种纯度不同的公共产品;在公共财政匮乏情况下,高纯度公路产品（如普通公路）应选择政府供给模式,低纯度的公路产品（如高速公路）,则可通过市场融资模式实现有效供给。
교통건설＂량개로망체계＂,시금후중국공로기출설시공급실현효솔여공평적중요거조。종공로산품적기본속성출발,제출료공로산품속성적순도개념,재준공공산품광가하대공로산품적공공품속성진행료세분분석,병재차기출상대공로산품적공급모식진행료토론。분석인위：공로산품순도이론시교통건설＂량개로망체계＂적경제학기출;고속공로여보통공로시2충순도불동적공공산품;재공공재정궤핍정황하,고순도공로산품（여보통공로）응선택정부공급모식,저순도적공로산품（여고속공로）,칙가통과시장융자모식실현유효공급。
The policy of ＂two systems of highway networks＂ is the significant step for the transportation infrastructure supply with efficiency and fairness.The concept of purity of highway as a product is brought forward according to its basic characteristics.The public goods characteristics of highway as a product are studied in the framework of quasi-public goods theory,and the choices of highway supply patterns are given.The conclusion shows that the purity theory for highway as a product is the economic foundation for the policy of ＂two systems of highway networks＂.Both of expressways and ordinary highways are public goods,but the purity characteristics of them are different.Therefore,the high-parity product（like ordinary highways） can be supplied by the government while the low-purity product（like expressways） can be supplied by market financing.