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  2. Purchasing power parity - Wikipedia

    en.wikipedia.org/wiki/Purchasing_power_parity

    The more that a product falls into category 1, the further its price will be from the currency exchange rate, moving towards the PPP exchange rate. Conversely, category 2 products tend to trade close to the currency exchange rate.

  3. Equation of exchange - Wikipedia

    en.wikipedia.org/wiki/Equation_of_exchange

    That is to say that, if and were constant or growing at equal fixed rates, then the inflation rate would exactly equal the growth rate of the money supply. An opponent of the quantity theory would not be bound to reject the equation of exchange, but could instead postulate offsetting responses (direct or indirect) of Q {\displaystyle Q} or of V ...

  4. Marginal rate of substitution - Wikipedia

    en.wikipedia.org/wiki/Marginal_rate_of_substitution

    Under the standard assumption of neoclassical economics that goods and services are continuously divisible, the marginal rates of substitution will be the same regardless of the direction of exchange, and will correspond to the slope of an indifference curve (more precisely, to the slope multiplied by −1) passing through the consumption bundle in question, at that point: mathematically, it ...

  5. How are currency exchange rates determined? - AOL

    www.aol.com/currency-exchange-rates-determined...

    As the currency loses its buying power and becomes less attractive in the foreign market, the exchange rate will likely drop in favor of stronger currencies. 2. Interest rates

  6. Economic equilibrium - Wikipedia

    en.wikipedia.org/wiki/Economic_equilibrium

    The equilibrium price in the market is $5.00 where demand and supply are equal at 12,000 units; If the current market price was $3.00 – there would be excess demand for 8,000 units, creating a shortage. If the current market price was $8.00 – there would be excess supply of 12,000 units.

  7. Excess demand function - Wikipedia

    en.wikipedia.org/wiki/Excess_demand_function

    The concept of an excess demand function is important in general equilibrium theories, because it acts as a signal for the market to adjust prices. [2] The assumption is that the rate of change of the price of a commodity will be proportional to the value of the excess demand function for that commodity, eventually leading to an equilibrium state in which excess demand for all commodities is ...

  8. Terms of trade - Wikipedia

    en.wikipedia.org/wiki/Terms_of_trade

    The expression terms of trade was first coined by the US American economist Frank William Taussig in his 1927 book International Trade.However, an earlier version of the concept can be traced back to the English economist Robert Torrens and his book The Budget: On Commercial and Colonial Policy, published in 1844, as well as to John Stuart Mill's essay Of the Laws of Interchange between ...

  9. Currency appreciation and depreciation - Wikipedia

    en.wikipedia.org/wiki/Currency_appreciation_and...

    In a floating exchange rate system, a currency's value goes up (or down) if the demand for it goes up more (or less) than the supply does. In the short run this can happen unpredictably for a variety of reasons, including the balance of trade, speculation, or other factors in the international capital market. For example, a surge in purchases ...