摘要
全球钾盐资源和产能相对集中,而消费市场又与产地分离,造成了全球近80%的钾肥产量要通过贸易方式销往主要消费市场。作为可贸易流通商品,国际钾肥市场是否符合"一价定律",本文采用不同的方法验证国际钾肥市场价格是否支持"一价定律"假说,从而判断国际钾肥市场的空间整合程度。从研究结果看,国际钾肥市场中存在非常显著的"价格共移"特征,且出口市场的价格关联程度要明显高于进口市场;"一价定律"假说主要在钾肥进口市场之间以及进口市场和出口市场之间得到了验证,而钾肥出口市场之间则未能支持"一价定律"假说。
Global potassium resources and production capacity are relatively concentrated,and the consumer market is separated from the place of origin,resulting in nearly 80% of global potassium fertilizer production to be sold to the main consumer market through trade.As a tradable commodity,whether the international potash fertilizer market conforms to the law of one-price or not,this paper uses different methods to verify whether the price of the international potassium fertilizer market supports the hypothesis of the law of one-price,so as to examine the degree of spatial integration of the international potassium fertilizer market.Based on the research findings,there is a very significant price co-movement feature in the international potassium fertilizer market,and the price correlation degree of the export market is significantly higher than that of the import market;the law of one-price hypothesis has been verified mainly among the import market of potassium fertilizer and between the import market and the export market,while the law of one-price hypothesis has not been supported among the export market of potassium fertilizer.
作者
王栋
WANG Dong(School of Economics and Management,China University of Geosciences (Beijing) ,Beijing 100083,China)
出处
《中国矿业》
北大核心
2019年第5期37-44,共8页
China Mining Magazine
关键词
钾盐资源
钾肥市场
一价定律
空间整合
potassium resource
potassium fertilizer market
the law of one-price
spatial integration
