In global financial centers, short-term market rates are effectively determined in the pledged collateral market, where banks and other financial institutions exchange collateral (such as bonds and equities) for money. Furthermore, the use of long-dated securities as collateral for short...

We provide a theory of the limits to monetary policy independence in open economies arising from the interaction between capital flows and domestic collateral constraints. The key feature of our theory is the existence of an 'Expansionary Lower Bound' (ELB), defined as an interest rate threshold...

We develop a theoretical model that shows that in the near future, the monetary policies of some key central banks in advanced economies (AEs) will have two dimensions-changes in short-term policy rates and balance sheet adjustments. This will affect emerging market economies (EMs), especially...

Financially closed economies insure themselves against current-account shocks using international reserves. We characterize the optimal management of reserves using an open-economy model of precautionary savings and emphasize several results. First, the welfare-based opportunity cost of reserves...

"In the aftermath of the Lehman crisis, payouts (i.e., taxpayer bailouts) in various forms were provided by governments to a variety of financial institutions and markets that were outside the regulatory perimeter - the - "shadow" banking system. Although recent regulatory proposals attempt to...

Financial lubrication in markets is indifferent to margin posting via money or collateral; the relative price(s) of money and collateral matter. Some central banks are now a major player in the collateral markets. Analogous to a coiled spring, the larger the quantitative easing (QE) efforts, the...