In the world of finance, the underwriter plays a crucial role in the issuance of securities. They take on the risk of buying the securities from the issuer and then selling them to investors. This risk-bearing activity is compensated through a commission, which is a fee paid to the underwriter. This commission serves as a reward for the underwriter's expertise and willingness to take on the risk associated with the issuance. As such, it is an important aspect to consider when evaluating the cost of issuing securities.