title: 经济学的角度，为什么存在收购行为？
desc: 双方签订合同也可以交易，收购在经济学上有什么意义吗？希望能以经济学理论最新的进展回答
topic: 经济学
content: Mergers are often categaries as horizontal merger， vertical merger and conglomerate meger. Horizontal merger refer to the case where two firm are in the same business line meger. Vertial mergers involve companies in different stage of prodcution. Vertical merger can be backward to the direction fo source of raw materails and forward to the direction of ultimate customers. Conglomerate megers inv
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