We show that cross-border financial flows arise when countries differ in their abilities to use assets as collateral. Financial integration is a way of sharing scarce collateral. The ability of one country to leverage and tranche assets provides attractive financial contracts to investors in the...

While the unfolding financial turmoil has involved new elements, more fundamental elements have remained the same. New elements include structured credit, the originate-to-distribute business model and the tri-party repurchase agreement. The recurrence of crises reflects a basic procyclicality...

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....

This paper incorporates banks and banking panics within a conventional macroeconomic framework to analyze the dynamics of a financial crisis of the kind recently experienced. We are particularly interested in characterizing the sudden and discrete nature of the banking panics as well as the...

At the epicenter of the 2008 financial crisis was the shadow banking system, which conducts liquidity and maturity transformation by investing in long-term assets and financing them through collateralized debts with very short maturity, such as asset-backed commercial paper (ABCP) and repurchase...

We examine banking regulation in a macroeconomic model of bank runs. We construct a general equilibrium model where banks may default because of fundamental or self-fulfilling runs. With only fundamental defaults, we show that the competitive equilibrium is constrained efficient. However, when...

Tracing the SEC ban on the short selling of financial stocks in September 2008, this paper investigates whether such selling activity before the 2008 short ban reflected financial companies’ risk exposure in the subprime crisis. Evidence suggests that short sellers sold short stocks that had...

Recent regulation mandating the clearing of credit default swaps (CDS) by a Central Clearing Counterparties (CCP), has rendered the latter a systemically important institution, whose failure poses a serious threat to global financial stability. This work investigates the potential failure of a...

The UBS- Credit Suisse (CS) merger in March 2023, one of the biggest banking unions in history, was an emergency rescue deal engineered by Swiss authorities to avoid more market-shaking turmoil in global banking. The merger resulted in a significant increase in the combined stakeholder net...