Staff Reports
Banking across Borders
October 2012 Number 576
Revised October 2013
JEL classification: F21, F23, F34, G21

Author: Friederike Niepmann

The international linkages between banks play a crucial role in today’s global economy. Existing models explain these links on the basis of portfolio theory, in which banks diversify lending. These models have found only limited empirical support and do not speak to many relevant dimensions of the data. For example, they do not address heterogeneity in the degree to which banking sectors fund their foreign operations locally in foreign markets. This paper proposes an alternative theory to explain banking across borders that is based on elements of international trade theory. In the model, banking across borders arises because countries differ in their relative factor endowments and in the efficiency of their banking sectors. Based on these differences, the pattern of foreign bank asset and liability holdings emerges endogenously. This parsimonious model provides a rationale for different dimensions of heterogeneity in foreign bank activities and clarifies the interpretation of international banking data. Its predictions are consistent with observed patterns in the data.

Available only in PDF pdf  80 pages / 957 kb
For a published version of this report, see Friederike Niepmann, "Banking across Borders," Journal of International Economics 96, no 2. (July 2015): 244-65.
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