Construction Waste Recycling (CWR) has a significant non-market valuation, such as conserving land resources, improving air and water quality. However, it's valuation has not been widely explored. This study aims to reasonably estimate the CWR non-market valuation by taking Changsha, China as an example. To get more reliable and accurate estimating result, an improved Card Ladder CVM (CL-CVM) has been put forward, which included the advantages of both continuous CVM (CCVM) and discrete CVM (DCVM). Subsequently, an extra question captured the degree of uncertainty of urban residents and constru...
