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  Spreads are increasing with maturity in general due to liquidity, counterparty and interest rate risk.
   
   
      
  Exchange rate between two currencies implied by their exchange rates 
with a common third currency. Calculating these is simply unit 
conversion.
   
   
      
  Interbank rates (duh)Size (larger size, larger spread)Relationship (can be important)
   
   
      
  R Nominal A - R nominal B = E inflation A - E inflation BIn other 
words, real rates are assumed to be constant (IRP) so differences in 
nominal rates are all about inflation
   
   
      
  A currency is quoted at a forward premium relative to a second 
currency if the forward price in units of the second currency is higher 
than the spot price. A forward discount is, shockingly, the opposite. 
Can calculate it as Forward price - spot price
   
   
      
  (FPt - FP) * contract size where FPt is the current time, and FP is 
the original price agreed to.Well this is pretty obvious, isn't it?
   
   
      
  They mean the same thing.
   
   
      
  Nominal R = Real R + Inflation
   
   
      
  Exchange of goods, services, investment income, and gifts. Summarizes 
whether a country is selling more goods to a country than it is buying 
from it, which is a current account surplus.
   
   
      
  Requires LOOP across countries, pretty simple concept
   
   
      
  spread. Often quoted in pipsBuy at ask, Sell at bid
   
   
      
  Changes should offset the price impacts of an inflation differential
   
   
      
  which currencies are involvedtime of day (if both Lon and NYC are open, more liquidity)Volatility (higher vol, higher spreads)
   
   
      
  They increase supply of a given currency in foreign markets (makes 
sense). This should (theoretically) depreciate the currency as restore 
the deficit to balance. Depends on:1) the size of the initial deficit2) 
Influence of FX on prices3) Influence of price changes (from FX) on 
demand for goods