We present a novel and comprehensive dataset of bilateral gross and net external positions in various financial instruments for the main advanced and emerging economies and regions, designed to improve our understanding of cross-border financial linkages. The data show no strong correspondence between country or region pairs with the largest gross versus net external positions, and the importance of international financial centers, including offshore centers, in intermediating financial flows. We also highlight some important data gaps in completing a network of cross-border holdings, related to the limited available information on the size and geographical pattern of external claims and liabilities of offshore centers, oil exporters, and other mostly emerging markets.

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The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors. They do not necessarily represent the views of the International Bank for Reconstruction and Development/World Bank and its affiliated organizations, or those of the Executive Directors of the World Bank or the governments they represent.

In the presence of low trust in the banking system, liquidity requirements can stimulate bank deposits and financial development by enhancing depositor repayment in bad states. We study an unannounced and unexpected policy that increased the liquid assets of Ethiopian banks by 33% in one quarter of 2011, and present three findings consistent with this hypothesis. First, a panel of depositors shows deposit growth among wealthy individuals. Second, a survey reports higher bank deposits in branches opened after the policy in high‐income cities. Third, bank balance sheets and two sources of bank exposure highlight an increase in deposits, loans and branches.