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COVID-19 has revived government interest in domestic food production and self-sufficiency. Russia set temporary wheat export quotas and Vietnam briefly restricted rice exports, while Thailand kept its rice exports open.
Export restrictions were generally quantity-based rather than outright bans.
Export quotas and self-sufficiency policies can tighten global availability and shift trade flows toward exporters with open markets. This supports wheat and rice prices in a policy-driven way.
gulfnews.comAbdulnasser Alshaali, Special to Gulf News2020年6月28日在过去 182 次看涨的政策事件之后，小麦(SRW) 在 5 个交易日内中位数变动 +0.1%（52% 上涨；中间一半区间为 -1.9% 至 +1.4%），20 个交易日内为 -0.3%。
在过去 100 次中性的政策事件之后，稻谷 在 5 个交易日内中位数变动 +0.0%（51% 上涨；中间一半区间为 -2.6% 至 +2.3%），20 个交易日内为 +0.7%。
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。
