We propose a theory of financial intermediaries operating in markets influenced by investor sentiment. In our model, banks make loans, securitize these loans, trade in them, or hold cash. They can also borrow money, using their security holdings as collateral. We embed such banks in a stylized...

This paper is an exploratory analysis of the role that banks play in supporting the mechanism of exchange. It considers a model economy in which exchange activities are facilitated and coordinated by a self-organizing network of entrepreneurial trading firms. Collectively, these firms play the...