I model a number of imperfections in financial intermediation that have implications for real economic activity in a production economy with technological risk. Partially opaque firms are financed by both debt and insider equity. Banks have market power over borrowers. There can be a prior bias...

We develop a dynamic general equilibrium model for the positive and normative analysis of macroprudential policies. Optimizing financial intermediaries allocate their scarce net worth together with funds raised from saving households across two lending activities, mortgage and corporate lending....

The impact of collateral diversification by non-financial firms on systemic risk is studied in a general equilibrium model with standard production functions and mixed debt-equity financing. Systemic risk comes about as soon as firms diversify their collateral by holding claims on a big...

The paper introduces a model of bid/ask price formation in an imperfectly centralized forex dealership market in continuous time. The dealers have costly access to best quotes while interpreting signals from the joint dealer-customer order flow and deciding upon their own price quotes and...

The paper introduces a transition from an exchange rate target zone to the free float in a dynamic general equilibrium model of production, trade and consumption under diffusion uncertainty in a small open economy. The loss of credibility and subsequent collapse of the target zone is modeled by...

The paper studies dynamic equilibria in international financial markets with consumption and portfolio optimizing agents. The arising stochastic dymanic optimization problems with state variable (in particular: liquidity) constraints are analyzed by means of the adjoint/Euler equation for the...

The paper studies the parity conditions between assets denominated in different currencies, traded in a wellintegrated segment of the international capital market, and derives the consequences for the exchange rate expectations. The main objective is to assess the uncovered asset return parity...

The paper derives the adjoint/Euler equation for the co-state process of optimal control of diffusions in both integral and differential forms, as a part of the Stochastic Maximum Principle. The result is applied to the consumption and portfolio selection problems with statevariable-dependen t...

The paper proposes a model of multiple dealer forex trade in two variants: for direct and brokered market organization. The equilibrium order flow pattern is derived as a function of shadow prices (marginal valuations) of FX holdings across market participants. The shadow currency values can be...

The paper introduces a model of price formation in an economy with a decentralized dealership market for each of the traded securities, in continuous time. Each dealer is a competitive liquidity provider for non-dealer investors in the partial market for the given security. Quotes are in the...