In this paper a process analysis model of production in the U.S. Steel Industry is developed and tested. A technology matrix, which represents recent industry input-output structure, is estimated using engineering and metallurgical information. This matrix together with detailed cost, sales and...

Reply to comments Nelson, Jon P. 1971. Letter to the editor--A note on the economics of metallurgical coke production. Management Sci. 18(4, Part I, December) B237-B239.