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Currency Networks, Bilateral Exchange Rate Volatility and the Role of the US Dollar

  • Michael Bleaney
  • Mo Tian
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We investigate monthly bilateral exchange rate volatility for a large sample of currency pairs over the period 1999-2006. Pegs (particularly to the US dollar) and managed floats tend to have lower volatility than independent floats. A deeper investigation shows that the peg effect operates almost entirely through currency networks (i.e. where two currencies are pegged to the same anchor currency), and the lower volatility of US dollar pegs reflects the size of the US dollar network. Managed floats show clear evidence of tracking the US dollar, further increasing the effective size of the US dollar network. Inflation undermines the currency-stabilizing effect of peg networks. Currencies in smaller peg networks have higher unweighted but not trade-weighted exchange rate volatility, which is consistent with anchors being chosen to minimize trade-weighted volatility. The size of the effective US dollar network revealed here is a plausible explanation of the rarity of basket pegs. Volatility also reflects a range of structural factors such as country size, level of development, population density, inflation differentials and business cycle asymmetry.

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Paper provided by University of Nottingham, School of Economics in its series Discussion Papers with number 11/06.

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Handle: RePEc:not:notecp:11/06
Contact details of provider: Postal: School of Economics University of Nottingham University Park Nottingham NG7 2RD
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