In this article, we introduce a user-written data envelopment analysis command for Stata. Data envelopment analysis is a linear programming method for assessing the efficiency and productivity of units called decision-making units. Over the last decades, data envelopment analysis has gained considerable attention as a managerial tool for measuring performance of organizations, and it has been used widely for assessing the efficiency of public and private sectors such as banks, airlines, hospitals, universities, defense firms, and manufacturers. The dea command in Stata will allow users to conduct the standard optimization procedure and extended managerial analysis. The dea command developed in this article selects the chosen variables from a Stata data file and constructs a linear programming model based on the selected dea options. Examples are given to illustrate how one could use the code to measure the efficiency of decision-making units.
followed by establishing the defense industrial policy objectives and making e®orts to reach them. Accordingly, the defense export dragged attention from the defense industry sector and as a result recorded nearly 0.8 billion dollars in 2011 which is doubled amount compared to year 2008. Considering that defense technology valuation is inevitable in defense trade, the defense technology valuation is going to be a key issue for the domestic defense R&D invested equipment including main battle tanks, armored vehicles, air trainers etc. This paper presents the defense R&D technology valuation model with the in-depth analysis of its theories and current status both domestic and abroad. Also, it provides relevant policy issues and directions in the near future. It should contribute to boosting the defense technology valuation¯elds and to formulating a concrete tool for analyzing defense R&D technology valuation in the near future. A Technology Valuation Model for the Defense R&D 1350017-3 Int. J. Innovation Technol. Management 2013.10. Downloaded from www.worldscientific.com by MCMASTER UNIVERSITY on 02/05/15. For personal use only. A Technology Valuation Model for the Defense R&D 1350017-9 Int. J. Innovation Technol. Management 2013.10. Downloaded from www.worldscientific.com by MCMASTER UNIVERSITY on 02/05/15. For personal use only. A Technology Valuation Model for the Defense R&D 1350017-13 Int. J. Innovation Technol. Management 2013.10. Downloaded from www.worldscientific.com by MCMASTER UNIVERSITY on 02/05/15. For personal use only.
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