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  2. Silent trade - Wikipedia

    en.wikipedia.org/wiki/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. Group A would leave trade goods in a prominent position and signal, by gong, fire, or drum for example, that they had left goods.

  3. Gift economy - Wikipedia

    en.wikipedia.org/wiki/Gift_economy

    In the Moka exchange system of Papua New Guinea, where gift givers become political "big men", those who are in their debt and unable to repay with "interest" are referred to as "rubbish men". The French writer Georges Bataille , in La part Maudite , uses Mauss's argument in order to construct a theory of economy: the structure of gift is the ...

  4. Native American trade - Wikipedia

    en.wikipedia.org/wiki/Native_American_Trade

    Mountain men and traders from Mexico freely operated there independently of the US. After the formation of the United States, the commerce clause of the Constitution gave Congress the power to "regulate Commerce with foreign Nations, and among the several States, and with the Native tribes."

  5. Barter - Wikipedia

    en.wikipedia.org/wiki/Barter

    Additionally, organized barter facilitates competitive advantage within industries and sectors. Considering the quantity of transactions depending on the supply-demand balance of the goods and services within the barter organization, member companies tend to face minimal competition within their own operating sector. [citation needed]

  6. Fair trade debate - Wikipedia

    en.wikipedia.org/wiki/Fair_trade_debate

    Capturing such socially constructed benefits, including that of confidence in business relationships, is difficult. There is a difference between impact studies and case studies. [4]: 40–96 Case studies are valuable for, among other things, researching specific systems and sub-systems, constructing models, and identifying problems. However ...

  7. Medium of exchange - Wikipedia

    en.wikipedia.org/wiki/Medium_of_exchange

    In a barter transaction, one valuable good is exchanged for another of approximately equivalent value. William Stanley Jevons described how a widely accepted medium allows each barter exchange to be split into three difficulties of barter. [19] A medium of exchange is deemed to eliminate the need for a coincidence of wants.

  8. Iron Act - Wikipedia

    en.wikipedia.org/wiki/Iron_Act

    knives, scythes, sickles and other edged tools as a tilt hammer would be needed to produce thin iron, and a steel furnace to make steel. nails which were made from rod iron, from a slitting mill. Tinplate, which required a rolling mill. This was the raw material from which tinsmiths made a wide variety of goods from tinned sheet iron.

  9. Metallurgy in pre-Columbian America - Wikipedia

    en.wikipedia.org/wiki/Metallurgy_in_pre...

    However, concave iron ore mirrors were apparently used for firing and optical purposes by the Olmec (1500–400 BCE) and Chavin (900–300 BCE) cultures, [33] and ilmenite "beads" may have served as hammers for fine work. [34] The Olmec and Izapa (300 BCE – 100 CE) also seem to have used iron magnetism to align and position monuments. [35]