There is a wide variation in the structure of financial systems in different countries. We compare two idealized polar extremes. In one, which we refer to as the "German model," banks and other intermediaries predominate. In the other, which we refer to as the "U.S. model," financial markets...

The authors describe a model of general equilibrium with incomplete markets in which firms can innovate by issuing arbitrary, costly securities. When short sales are prohibited, firms behave competitively and equilibrium is efficient. When short sales are allowed, these classical properties may...

What causes a financial crisis? Can financial crises be anticipated or even avoided? What can be done to lessen their impact? Should governments and international institutions intervene? Or should financial crises be left to run their course? In the aftermath of the Asian financial crisis, many...

Relationships between intermediaries and their customers have become increasingly important in recent years. This paper argues that the need for costly ex ante information acquisition and analysis is a major barrier to the participation of investors and firms in sophisticated markets. Long-term...

Most analyses of banking crises assume that banks use real contracts. However, in practice contracts are nominal and this is what is assumed here. We consider a standard banking model with aggregate return risk, aggregate liquidity risk and idiosyncratic liquidity shocks. We show that, with...

Positive and negative asset price bubbles and their relationship to monetary policy are considered. Positive bubbles occur when there is an agency problem between banks and the people they lend money to because the banks cannot observe how the funds are invested. This causes a risk shifting...

A complex financial system comprises both financial markets and financial intermediaries. We distinguish financial intermediaries according to whether they issue complete contingent contracts or incomplete contracts. Intermediaries such as banks that issue incomplete contracts, e.g., demand...