With all the green bond data issued in China from 2016 to 2022,the authors match the green bonds that disclose the environmental information of the duration with the green bonds that do not disclose the environmen-tal information of the duration,so as to verify whether the green disclosure premium exists,and whether the quality of environmental information disclosure and the third-party disclosure certification are the main influencing fac-tors.The results show that the credit spread of green bonds that disclose the environmental information of the dura-tion is 13.7 percentage points lower than that of the control group,indicating that there is a green disclosure premi-um in China's green bond market;the quality of environmental information disclosure and third-party disclosure certification are the main influencing factors of green disclosure premium,and state-owned enterprises,non-pol-luting industries and the central and western regions have an inhibitory effect on green disclosure premium.
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