Public monopoly, mixed oligopoly and productive efficiency: a generalization
Public monopoly, mixed oligopoly and productive efficiency: a generalization
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作者：
Susumu Cato
该文件考虑了公共部门降低成本的投资。我们比较了公共垄断和混合寡头垄断下的投资。在没有需求函数和成本函数的情况下，我们证明了公共垄断的投资高于混合寡头垄断的投资。我们的结果是对Nishimori and Ogawa（2002）的结果的推广，Nishimori and Ogawa（2002）通过假设线性需求函数和线性成本函数，研究了放松管制对公共部门投资的影响。
The paper considers a cost-reducing investment by the public sector. We compare the investment in the public monopoly to that in the mixed oligopoly. Without specifications of the demand and cost functions, we show that the investment in the public monopoly is higher thanthat in the mixed oligopoly. Our result is a generalization of the result of Nishimori and Ogawa (2002), which investigate the effects of deregulation on the public sector's investment by assuming the linear demand and linear cost functions.