as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what is the incentive for a bank to refinance a mortgage at a lower rate?
user
the big one is to keep you from refinancing it with someone else to get a better rate. there may also be some funny-money reasons having to do with being able to count this as a new sale.
assistant