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进入盛夏,很多蔬菜价格都降了下来,但大蒜价格却再次逆势上扬。2010年曾轰轰烈烈暴涨的“蒜你狠”现象,似有卷土重来之势。两年来,大蒜价格经历了从暴涨到暴跌,再到暴涨的过山车行情,既伤害了农民和消费者的利益,也给央行执行货币政策造成了莫大的干扰。大蒜等小类农产品价格的暴涨暴跌,与其背后的形成机理密切相关,反映了当前国内农产品规模化生产的缺失。生产决策取决于前期价格信息,供需曲线斜率的较大落差导致价格波动产生“蛛网式”发散效应。另外,缺乏远
Into summer, a lot of vegetable prices have dropped, but the price of garlic is again contrarian rise. 2010 has been soaring boom “garlic you relentless ” phenomenon, seems to be coming back. In the past two years, the prices of garlic have gone from skyrocketing to plummeting to skyrocketed rollercoaster prices, which not only harmed the interests of peasants and consumers, but also caused great disruption to the central bank’s monetary policy. The skyrocketing prices of small-sized agricultural products, such as garlic, are closely related to the formation mechanism behind them and reflect the current lack of large-scale production of agricultural products in China. The production decision depends on the previous price information. The big drop in the slope of the supply-demand curve leads to the price fluctuation resulting in the divergence effect. In addition, the lack of far