Finding implicit subsidies in financial markets

May 26, 2018

Implicit subsidies in financial markets can be defined as expected returns over and above the risk free rate and conventional risk premia. While conventional risk premia arise from portfolio optimization of rational risk-averse financial investors, implicit subsidies arise from special interests of market participants, including political, strategic and personal motives. Examples are exchange rate targets of governments, price targets of commodity producers, investor relations of institutions, and the preference for stable and contained portfolio volatility of many households. Implicit subsidies are more like fees for services than compensation for standard financial risk. Detecting and receiving such subsidies creates risk-adjusted value. Implicit subsidies are paid in all major markets. Receiving them often comes with risks of crowded positioning and recurrent setbacks.

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Explaining FX forward bias

July 8, 2017

Forward bias in foreign exchange markets means that a positive interest rate differential precedes currency appreciation. It has been an empirical regularity in developed FX markets in recent decades. The forward bias contradicts traditional theory: positive risk-adjusted interest rate differentials are supposed to be offset by expected currency depreciation. An academic paper explains how FX forward bias arises when central banks ‘lean against the wind’ of appreciation through sterilized FX interventions.

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EM exchange rates and self-reinforcing trends

February 6, 2016

Emerging market exchange rates can be catalysts of self-reinforcing trends. Currency appreciation raises both global lenders’ risk limits and EM institutions’ debt servicing capacity. Currency depreciation spurs the reverse dynamics. Their escalatory potential constrains central banks’ tolerance for exchange rate flexibility.

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Why and when central banks intervene in FX markets

April 5, 2015

A new BIS paper summarizes motives and impact of FX interventions. Most importantly it looks at the conditions under which such interventions are effective (and hence likely). The strongest case for interventions arises when [i] the central bank has a clear view about an exchange rate misalignment, and [ii] the intervention would not go against the interest rate differential.

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The evolution of China’s monetary policy

March 15, 2015

China’s economy has long relied on compressed interest rates in conjunction with strict capital controls and a tightly managed exchange rate. A new ADBI paper suggests, however, that modest liberalization and gradual internationalization of the renminbi since 2005 have lessened state control over financial parameters. Inconsistencies and risks of market dislocations have become more evident.

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Official flows and consequences for FX markets

November 8, 2014

A new IMF paper shows empirically that official currency interventions affect external imbalances and, by implication, exchange rate misalignments. There is a short-term flow impact, which is strongest when capital mobility is low. And there is a medium-term portfolio balance impact, which is strongest when capital mobility is high. Both effects are intuitive and offer lessons for FX trading strategies.

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The trouble with (sterilized) FX interventions in emerging markets

April 5, 2014

Large foreign exchange interventions are common in emerging markets, typically in response to capital flows. What is less well understood is the expansionary (contractionary) impact of FX purchases (sales) on local credit, even if the transactions are sterilized. Sterilization securities mostly end up on banks’ balance sheets, where they function as substitutes for bank reserves, serve as collateral, and encourage banks to expand their loans-to-securities ratios.

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What we can learn from Asia’s “tapering”

June 30, 2013

J.P. Morgan’s David Fernandez points out that central bank “tapering” (moderation of balance sheet expansion and related monetary accommodation, currently envisaged by the U.S. Federal reserve) has a precedent of sorts. Emerging Asia had ramped up central bank assets for a decade after the 1997-98 crisis, mainly though FX interventions to bolster financial stability and competitiveness. Asia has been unwinding part of that expansion, passively and in line with smaller external surpluses, since 2008. The initial balance sheet expansion did not undermine credibility and price stability. And the subsequent reduction may be interpreted as a positive normalization, reducing the risk of financial bubbles.

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The limited effect of FX interventions

June 13, 2013

In a new BIS paper K. Miyajima provides evidence that unsterilized FX interventions in emerging market economies fail to influence exchange rate forecasts (as published by Consensus Economics) in the direction of the intervention. This supports the intuition of market practitioners that interventions may briefly stem or reverse the market tide, but do not typically have the purpose or power to change the prevailing fundamental trend.

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