This paper provides a theory model of trade finance to explain the "great trade collapse." The model shows that, first, the riskiness of international transactions rises relative to domestic transactions during economic downturns, and second, the exclusive use of a letter of credit in...

The use of collateral has become one of the most widespread risk mitigation techniques. While it brings stabilizing effects to the individual lender we argue that it may exacerbate systemic risk through margin call activation. We show how a liquidity shock to the cash lender may propagate as a...

If an exhaustible resource stock is viewed as a capital good, one obtains in the Hotelling model that economic depreciation of the stock equals aggregate rent. When extraction costs depend on the stock of resource remaining, depreciation is less than aggregate rent. These results permit us to...

In this paper, we analyze credit growth in Sub-Saharan Africa over the past decade focusing on the post-2002 rapid credit growth in select countries. We develop regression models of the fundamental determinants of bank credit and use them to examine whether they can fully explain developments in...