What is Exchange: Definition and 261 Discussions

In finance, an exchange rate is the rate at which one national currency will be exchanged for another. It is also regarded as the value of one country's currency in relation to another currency. For example, an interbank exchange rate of 114 Japanese yen to the United States dollar means that ¥114 will be exchanged for US$1 or that US$1 will be exchanged for ¥114. In this case it is said that the price of a dollar in relation to yen is ¥114, or equivalently that the price of a yen in relation to dollars is $1/114.
Each country determines the exchange rate regime that will apply to its currency. For example, a currency may be floating, pegged (fixed), or a hybrid. Governments can impose certain limits and controls on exchange rates.
In floating exchange rate regimes, exchange rates are determined in the foreign exchange market, which is open to a wide range of different types of buyers and sellers, and where currency trading is continuous: 24 hours a day except weekends (i.e. trading from 20:15 GMT on Sunday until 22:00 GMT Friday). The spot exchange rate is the current exchange rate, while the forward exchange rate is an exchange rate that is quoted and traded today but for delivery and payment on a specific future date.
In the retail currency exchange market, different buying and selling rates will be quoted by money dealers. Most trades are to or from the local currency. The buying rate is the rate at which money dealers will buy foreign currency, and the selling rate is the rate at which they will sell that currency. The quoted rates will incorporate an allowance for a dealer's margin (or profit) in trading, or else the margin may be recovered in the form of a commission or in some other way. Different rates may also be quoted for cash, a documentary transaction or for electronic transfers. The higher rate on documentary transactions has been justified as compensating for the additional time and cost of clearing the document. On the other hand, cash is available for resale immediately, but incurs security, storage, and transportation costs, and the cost of tying up capital in a stock of banknotes (bills).

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  1. P

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    Homework Statement I am doing a lab called "Complexometric Determination of Cobalt" and am asked "Explain why an anion resin can be used to separate a mixture of cations such as Co(II) and Ni(II)" I have no idea. My textbook says that cation exchange resins are used to separate...
  2. G

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  3. P

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  4. D

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  5. J

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  6. A

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  7. T

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  8. L

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  9. M

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  10. Vorde

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  11. S

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  12. Y

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  13. V

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  14. A

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  15. R

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  16. H

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    I did an experiment in which I used an anion exchange resin to separate nickel from cobalt but I don't understand the theory behind it. What I know is that the ion exchange resin uses quaternary ammonium groups as its cations but that's about it. First we packed a column with the resin then...
  17. J

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    The exchange operator P is hermitian--therefore it corresponds to some observable of the system. I've read on Wikipedia that this means "... we can, in principle, perform a measurement to find out if a state is symmetric or antisymmetric," but I have some doubts whether that is absolutely...
  18. O

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  19. D

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  20. J

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  21. S

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  22. M

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  23. B

    Heat Exchange Solutions to Improve Shop Comfort

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  24. P

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  25. Y

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  26. P

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  27. J

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  28. I

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  30. S

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  32. S

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  33. O

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  34. A

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  36. A

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  39. N

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  42. F

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  43. L

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  44. S

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