Due to the novelty of green bonds in the fixed income area, little empirical research has been done on the question which impact the fact that a bond is investing in green projects has on the yield that investors receive. The aim of this book is to determine if there is a discount or premium on the yield at issuance of green bonds. The analysis is mainly based on an empirical study. The author examined the influence of eight selected indicators on the issue yield of bonds using a multivariate regression analysis. The analyzed sample comprised data sets of 601 bonds.