
A Congressional Research Service report explains how WTO rules discipline US domestic farm support, using a traffic-light classification of green, amber and blue box programs. It notes that amber-box outlays are limited and that cotton, wheat and soybeans have export shares near or above 50%.
The report was updated in June 2019.
WTO limits on US support shape how much government aid can be given without challenge, which matters for the durability of trade-war payments. Heavily exported crops are most exposed to trade-rule disputes.
在过去 1,623 次政策事件之后,玉米 在 5 个交易日内中位数变动 +0.1%(51% 上涨;中间一半区间为 -1.4% 至 +1.5%),20 个交易日内为 +0.4%。
在过去 1,905 次政策事件之后,大豆 在 5 个交易日内中位数变动 +0.1%(52% 上涨;中间一半区间为 -1.4% 至 +1.8%),20 个交易日内为 +0.2%。
在过去 1,019 次政策事件之后,小麦(SRW) 在 5 个交易日内中位数变动 -0.1%(49% 上涨;中间一半区间为 -1.7% 至 +1.5%),20 个交易日内为 +0.2%。
各商品基准价相对事件前最后收盘价的变动。历史数据汇总同类过往事件;仅描述已发生的情况,不代表未来走势。不构成投资建议。