The granular origins of exchange-rate fluctuations

Simon Lloyd, Daniel Ostry and Balduin Bippus

How much capital flows move exchange rates is a central question in international macroeconomics. A major challenge to addressing it has been the difficulty identifying exogenous cross-border flows, since flows and exchange rates can evolve simultaneously with factors like risk sentiment. In this post, we summarise a staff working paper that resolves this impasse using bank-level data capturing the external positions of UK-based global intermediaries to construct novel ‘Granular Instrumental Variables‘ (GIVs). Using these GIVs, we find that banks’ United States dollar (USD) demand is inelastic – a 1% increase in net-dollar assets appreciates the dollar by 2% against sterling – state dependent – effects double when banks’ capital ratios are one standard deviation below average – and that banks are a ‘marginal investor’ in the dollar-sterling market.

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The gravity of cross-border syndication ties in financial services trade

Luke Heath Milsom, Vladimír Pažitka, Isabelle Roland and Dariusz Wójcik

Exports of financial services decline with geographical distance at a rate comparable to that for international trade in goods (eg, Portes and Rey (2005)). This is surprising since there are no transportation costs involved. The consensus is that distance is a proxy for information frictions. We show how cross-border syndication can help overcome information barriers to trade in financial services. We zoom in on the equity underwriting industry where international syndicates reduce information asymmetry between issuers and investors located in different countries.

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Tracking foreign capital

Christiane Kneer and Alexander Raabe

Capital flows are fickle. In the UK, the largest and most volatile component of inflows from foreign investors are so-called ‘other investment flows’ – the foreign capital which flows into banks and other financial institutions. But where do these funds ultimately go and which sectors are particularly exposed to fickle capital inflows? Do capital inflows allow domestic firms to borrow more? Or does capital from abroad ultimately finance mortgages of UK households? Some of the foreign capital could also get passed on to the financial sector or flow back abroad.

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