Strong harvest shortfall and high world market prices prompted the Russian government to implement a wheat export ban in 2010 aiming to dampen domestic wheat prices. Building on regional price and trade data of Russia's wheat producing regions, we find strengthened domestic wheat market integration during the export ban period. Market integration decreased to its pre-ban level in the post-ban period; however, higher transaction costs resulting from increased risk of domestic grain trade during the export ban continued to prevail. Although market integration was temporarily strengthened, the export ban generally hampers market development in the long run.

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俄罗斯2010/2011小麦出口禁令对空间市场一体化和粮食市场交易成本的影响

严重的收成短缺和高世界市场价格促使俄罗斯政府在 2010 年实施小麦出口禁令，旨在抑制国内小麦价格。根据俄罗斯小麦产区的区域价格和贸易数据，我们发现在出口禁令期间，国内小麦市场一体化得到加强。市场一体化在禁令后降低至禁令前水平；然而，出口禁令期间国内粮食贸易风险增加导致的交易成本上升仍普遍存在。虽然市场整合暂时得到加强，但从长远来看，出口禁令总体上会阻碍市场发展。