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  2. List of community currencies in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_community...

    Bridgetown Bucks from PDX Currency Corp, Portland (Inactive) Cascadia Hour Exchange (1993) Portland [12] Columbia Community Exchange, Columbia County; Gorge Local Currency Cooperative, Hood River; Jefferson Rounds, Coos, Curry, Douglas, Klamath, Lake, Jackson, and Josephine counties; HOUR Exchange, [13] Corvallis; PDX Timebank, [14] Portland

  3. History of money - Wikipedia

    en.wikipedia.org/wiki/History_of_money

    The history of money is the development over time of systems for the exchange of goods and services. Money is a means of fulfilling these functions indirectly and in general rather than directly, as with barter. Money may take a physical form as in coins and notes, or may exist as a written or electronic account.

  4. Barter - Wikipedia

    en.wikipedia.org/wiki/Barter

    Other anthropologists have questioned whether barter is typically between "total" strangers, a form of barter known as "silent trade". Silent trade, also called silent barter, dumb barter ("dumb" here used in its old meaning of "mute"), or depot trade, is a method by which traders who cannot speak each other's language can trade without talking ...

  5. Medium of exchange - Wikipedia

    en.wikipedia.org/wiki/Medium_of_exchange

    The difference between the two functions becomes obvious when one considers the fact that coins were very often 'shaved.' Precious metal was removed from them, leaving them still useful as an identifiable coin in the marketplace, for a certain number of units in trade, but which no longer had the quantity of metal supplied by the coin's minter.

  6. Countertrade - Wikipedia

    en.wikipedia.org/wiki/Countertrade

    Countertrade also occurs when countries lack sufficient hard currency, or when other types of market trade are impossible.. In 2000, India and Iraq agreed on an "oil for wheat and rice" barter deal, subject to United Nations approval under Article 50 of the UN Persian Gulf War sanctions, that would facilitate 300,000 barrels of oil delivered daily to India at a price of $6.85 a barrel while ...

  7. Trade - Wikipedia

    en.wikipedia.org/wiki/Trade

    Traders generally negotiate through a medium of credit or exchange, such as money. Though some economists characterize barter (i.e. trading things without the use of money [1]) as an early form of trade, money was invented before written history began. Consequently, any story of how money first developed is mostly based on conjecture and ...

  8. History of Philippine money - Wikipedia

    en.wikipedia.org/wiki/History_of_Philippine_money

    Barter was a system of trading commonly practiced throughout the world and adopted by the Philippines. The inconvenience of the barter system led to the adoption of a specific medium of exchange – the cowry shells. Cowries produced in gold, jade, quartz and wood became the most common and acceptable form of money through many centuries.

  9. Shell money - Wikipedia

    en.wikipedia.org/wiki/Shell_money

    The shell most widely used worldwide as currency was the shell of Cypraea moneta, the money cowry. This species is most abundant in the Indian Ocean , and was collected in the Maldive Islands , in Sri Lanka , along the Malabar coast, in Borneo and on other East Indian islands, and in various parts of the African coast from Ras Hafun to Mozambique .