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Jumps in foreign exchange rates and stochastic unwinding of carry trades


  • Nirei, Makoto
  • Sushko, Vladyslav


Tails in the distribution of JPY/USD exchange rate returns are well approximated by an exponentially dampened power-law. Distribution parameter estimates indicate that yen appreciation jumps belong to a Levy process with unbounded variation, suggesting that same mechanism may be responsible for fluctuations in normal times as well as rare crashes. In contrast, yen depreciation jumps have a well defined second moment suggesting a Gaussian regime. In addition, extreme episodes of yen appreciation are larger and more persistent than episodes of yen depreciation. The asymmetry is magnified and power-law tails are more elongated during times of higher interest rate differential between U.S. and Japan and higher level of VIX indicating that carry trade may be the driver. We propose a model of strategic carry trader behavior that in equilibrium generates exponentially dampened power-law distribution of jumps in foreign exchange along with "up by the stairs down by the elevator" dynamics arising from the assymetries between negative and positive jumps.

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  • Nirei, Makoto & Sushko, Vladyslav, 2011. "Jumps in foreign exchange rates and stochastic unwinding of carry trades," International Review of Economics & Finance, Elsevier, vol. 20(1), pages 110-127, January.
  • Handle: RePEc:eee:reveco:v:20:y:2011:i:1:p:110-127

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    Cited by:

    1. Juan Manuel Julio-Roman, 2015. "On the Stylized Facts of Nominal Exchange Rates in Brazil, Chile, Colombia, Mexico and Peru," BORRADORES DE ECONOMIA 013015, BANCO DE LA REPÚBLICA.
    2. Pericoli, Marcello & Taboga, Marco, 2012. "Bond risk premia, macroeconomic fundamentals and the exchange rate," International Review of Economics & Finance, Elsevier, vol. 22(1), pages 42-65.
    3. Hutchison, Michael & Sushko, Vladyslav, 2013. "Impact of macro-economic surprises on carry trade activity," Journal of Banking & Finance, Elsevier, vol. 37(4), pages 1133-1147.
    4. Kao, Lie-Jane & Wu, Po-Cheng & Lee, Cheng-Few, 2012. "Time-changed GARCH versus the GARJI model for prediction of extreme news events: An empirical study," International Review of Economics & Finance, Elsevier, vol. 21(1), pages 115-129.
    5. Bunčák, Tomáš, 2013. "Jump Processes in Exchange Rates Modeling," MPRA Paper 49882, University Library of Munich, Germany.
    6. Makoto Nirei & Theodoros Stamatiou & Vladyslav Sushko, 2012. "Stochastic Herding in Financial Markets Evidence from Institutional Investor Equity Portfolios," BIS Working Papers 371, Bank for International Settlements.
    7. repec:spr:annopr:v:262:y:2018:i:1:d:10.1007_s10479-016-2297-y is not listed on IDEAS


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