Demand Fluctuations in the Ready-Mix Concrete Industry
Demand Fluctuations in the Ready-Mix Concrete Industry
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DOI：
10.3982/ecta6877
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发表时间：
2013-05-01
期刊：
影响因子：
6.1
通讯作者：
Collard-Wexler, Allan
中科院分区：
文献类型：
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作者：
Collard-Wexler, Allan
我调查的作用，在预拌混凝土行业的需求冲击。使用超过15，000家工厂的人口普查数据，我估计了寡头垄断市场的投资和进入模型。这些估计数用于模拟消除短期当地需求变化的影响。平滑需求波动的政策具有市场扩张效应：该模型预测该行业的工厂数量将增加39%。由于更大的市场既有更多的工厂，也有更大的工厂，因此一项平滑需求的财政政策将使大型工厂的份额增加20%。最后，平滑需求的政策减少了25%的进入和退出，但对企业改变规模的速度没有影响。
I investigate the role of demand shocks in the ready-mix concrete industry. Using Census data on more than 15,000 plants, I estimate a model of investment and entry in oligopolistic markets. These estimates are used to simulate the effect of eliminating short-term local demand changes. A policy of smoothing the volatility of demand has a market expansion effect: The model predicts a 39% increase in the number of plants in the industry. Since bigger markets have both more plants and larger plants, a demand-smoothing fiscal policy would increase the share of large plants by 20%. Finally, the policy of smoothing demand reduces entry and exit by 25%, but has no effect on the rate at which firms change their size.