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7 months long involving 23 countries. GATT is signed in, $10 billion worth of trade affected by 45,000 tariffs.
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5 months long, involving 34 countries. Countries exchanged about 5,000 tariff concessions.
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8 months long, involving 34 countries. Countries exchanged about 8,700 tariff concessions.
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5 months long, involving 22 countries. There was $2.5 billion in tariff reductions.
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11 months long, involving 45 countries. Tariff concessions worth $4.9 billion worth of trade.
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37 months long, 48 countries involved. Tariff concessions worth $40 billion of trade.
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74 months long, 102 countries involved. Tariff reductions worth more than $300 billion achieved
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87 months long, involving 123 countries. "The round led to the creation of WTO, and extended the range of trade negotiations, leading to major reductions in tariffs (about 40%) and agricultural subsidies, an agreement to allow full access for textiles and clothing from developing countries, and an extension of intellectual property rights," (WTO).
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Currently still happening. Discussing tariffs, non-tariff measures, agriculture, labor standards, environment, competition, investment, transparency, patents, and more.