求助文献一篇：

作者：Baumol, W. J.

篇名：Scale Economies, Average Cost and the Profitability of Marginal Cost Pricing

期刊：Essays in Urban Economics and Public Finance in Honor of William S. Vickrey, R.E. Grieson, ed. (Lexington, Mass.: D. C. Heath, 1975).

未找到期刊卷号和文章连接。

感谢：）