Earlier quoted context omitted.
Banks cover their funding needs through the interbank market that provides the overnight loans required to balance their books at the end of the day. Banks will raise deposit rates to attract deposits if they constantly find that they need to go to the interbank market to balance their books because it is cheaper. The discount window is used when the bank is unable to access the interbank market which is usually an i…
> will raise deposit rates to attract deposits if they constantly find that they need to go to the interbank market to balance their books because it is cheaper This is true for the largest banks. For many smaller banks, interbank lending is cheaper than deposits. Particularly if those deposits must come from new customers. Your model is roughly correct over long, strategic time periods. But in tactical timeframes, d…
Regulators however are less than thrilled if these imbalances persist long term because banks that rely heavily on hot funds tend to experience runs.