The macroeconomic evidence of the short-term impact of exchange rates on exports and prices is notoriously weak. This paper examines the microfoundations of this disconnect. I study the response of firms' export and price setting decisions to fluctuations in exchange rates and credit conditions...

This paper proposes a theoretical framework to analyze the impacts of credit and technology shocks on business cycle dynamics, where firms rely on banks and households for capital financing. Firms are identical ex ante but differ ex post due to different realizations of firm specific technology...

Capital requirements play a key role in the supervision and regulation of banks. The Basel Committee on Banking Supervision is now changing the current framework by introducing risk-sensitive capital charges. There have been concerns that this will unduly increase volatility in the banks'...

The purpose of the "counter-cyclical capital buffer" (buffer) is to dampen procyclicality in the financial system, absorb capital losses and prevent a credit crunch during recessions. In this paper, a stylized analytical expression for optimal buffer policy is presented. Results are derived...

I present a dynamic general equilibrium model in which financial interconnectedness endogenously changes over the business cycle and shapes systemic risk. To share individual risks, banks become interconnected through holding overlapping asset portfolios. Diversification reduces individual...

Fluctuations in banks' due diligence are increasingly viewed as a force driving the buildup and unfolding of crises. In a dynamic general equilibrium model, we show that banksí access to retail and wholesale liquidity and the values of loan portfolios govern banks' incentives and effectiveness...

How does uncertainty affect the costs of raising finance in the bond market and via bank loans? Empirically, this paper finds that heightened uncertainty is accompanied by an increase in corporate bond yields and a decrease in bank lending rates. This finding can be explained with a model that...

How do oil price movements affect sovereign spreads in an oil-dependent economy? I develop a stochastic general equilibrium model of an economy exposed to co-moving oil price and output processes, with endogenous sovereign default risk. The model explains a large proportion of business cycle...

According to current regulation, European banks can apply zero risk weights to sovereign exposures in their balance sheet, irrespective of the assigned rating. We show that a zero risk weighting of sovereign bonds has implications by distorting banks' asset allocation decisions. Due to the lower...

This paper conducts a macroeconomic welfare analysis of securitization in a real business cycle model with a banking sector. I model securitization as an optional interbank funding channel that credibly reduces the diversion ability on borrowed funds and increases operation costs on loan assets....