Waste recycling and utilization has proven to be a reasonable waste treatment method,which can effectively alleviate resource and environmental problems.Waste recycling and utilization(WRU)legal system has already been practiced in some developed countries and has achieved good results.The result depends on the support of the social and economic foundation of developed countries.However,most developing countries have not implemented WRU,this difference should be taken seriously.The following are the main issues discussed in this article:(1)Influencing factors restricting the implementation of WRU;(2)The “socio-economic foundation”of a country or region to implement WRU;(3)Judge whether the current state of social and economic development is suitable for carry out WRU.Based on this,this article is based on “sustainable development theory” “circular economy theory”,“extended producer responsibility theory”.Firstly,review and screen the influencing factors related to the implementation of WRU in existing domestic and foreign research.We select 13 developed countries that were carried out WRU and recognized as highly efficient upon waste recycling and utilization as the empirical targets.“Economy-Society-Technology-Market-Consciousness” socioeconomic foundation framework consisting of five subsystems and 13 indicators is constructed.We combine principal component analysis and panel threshold regression model to analyze the impacts and proper numerical ranges of the subsystems for WRU.Taking into account the unbalanced development,the “Socio-Economic basic judgment device”is proposed.It can judge the suitability of the current state of development of the country or region for the implementation of WRU.This judgment can avoid the waste of manpower,material resources or resources caused by blind implementation.Finally,a case study was conducted in 46 pilot cities for domestic waste classification in our country.The results display that social development level,technological level and consciousness level all positively promote WRU,while there is threshold effect for market level and economic level.Only when economic level is within a certain range and market maturity exceeds a certain value is there an appropriate opportunity for implementing WRU.At this time,GDP per capita ranges within 27,654-40,344 USD;use of renewable resources and wastes is larger than 5.07%;proportion of tertiary industry’s value added is larger than 67.54%.When the suitability score is below 0.60,it is not suitable for the implementation of WRU;the score is between 0.70-0.80,the implementation can begin.At present,only three cities,Beijing(0.84),Shanghai(0.83)and Guangzhou(0.83),among the 46 domestic waste classification pilot cities in China are very suitable for implementing WRU.Eighteen cities,including Nanjing(0.79)and Suzhou(0.79),can begin to implement WRU.Twenty cities,including Tai’an City(0.69)and Tongling(0.68),can choose to gradually promote it by the way of pilot community implementation first.At the same time,there are still five cities that conditions for implementation are not yet ripe,such as Changchun(0.59).The methods and results of this work provide other countries with reference to formulating waste management policies and decision-making on waste recycling and utilization. |