中文摘要：

基础设施是一国经济发展的基础，基础设施发展水平往往被视为衡量地区经济发展实力和消除贫困能力的重要指标。利用超越对数生产函数构建基础设施最优规模的分析框架，利用中国1978～2008年的数据进行实证研究。使用永续盘存法估算出中国的基础设施存量作为资本数据，同时估算出人力资本存量作为劳动力数据，探究中国基础设施存量是处于不足还是过度投资的状态。研究结果表明，改革开放以来中国基础设施资本的边际产出在各年度均大于私人资本的边际产出，基础设施并没有达到其最优规模，基础设施服务的供给不足。

英文摘要：

Infrastructure is the basis for the development of a country ＇ s economy, and the level of infrastructure development is often viewed as the measure of a country＇ s economic growth potential and an important indicator of poverty elimination. This paper from 1978 -2008. In empirical structure stock as capital data, creates a translog production function research, the paper uses the perpetual and estimates human capital as labor infrastructure is insufficient or surplus. The results show that the to study with the data after China＇ s reform inventory method to estimate China＇ s infradata. So we can explore the stock of China＇ s marginal product of China＇ s infrastructure capital is always greater than the marginal product of private capital. The infrastructure has not yet reached the optimal size, and the supply of infrastructure is inadequate.