Research on the Application of the Least Squares Estimation Algorithm in Pricing the Issuance of Green Government Special Bonds

Based on the data of 411 green government special bonds in 2018-2022, this paper studies the influencing factors of green government special bond issuance pricing, gradually adding the special debt ratio, bond own characteristics variables, regional financial and economic characteristics variables and market characteristics variables, and further dividing the data into two samples with strong and weak guarantee ability, respectively, to validate the data, and empirical evidence through the It is found that: local government special debt debt ratio has a positive correlation with green government special bond issuance spread, in addition to the bond itself characteristics, local government economic situation, market characteristics have a positive or negative correlation with green government special bond issuance spread; the special debt debt ratio of the region with strong guarantee ability has a significant impact on green special bond issuance spread, and vice versa, it is not significant.