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The Resampled Efficient Frontier™
2008Abstract This chapter introduces Resampled Efficient Frontier (REF) optimization, a generalization of linear constrained Markowitz MV portfolio optimization that includes uncertainty in investment information in the optimization process.1 Monte Carlo resampling methods are used to more realistically condition investment information in ...
Richard O Michaud, Robert O Michaud
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Frontiers of Efficiency Research
1995Efficiency Analysis in general systems theory is an active field of modern research. It covers not only the input-output systems, but other systems in control theory and engineering. Data envelopment analysis (DEA) deals only with a small component of input-output systems.
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Efficiency Measurement Using Stochastic Frontiers
1998DEA and stochastic frontiers are two alternative methods for estimating frontier functions and thereby measuring efficiency of production. DEA involves the use of linear programming whereas stochastic frontiers involve the use of econometric methods.
Tim Coelli +2 more
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Production Frontiers and Efficiency Measurement
1996The standard definition of a production function is that it gives the maximum possible output for a given set of inputs. This is a different concept than the regression function, which gives mean output for a given set of inputs. Thus the production function defines a boundary or “frontier.” Deviations of observed outputs from this frontier are in ...
Christopher Cornwell, Peter Schmidt
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Efficient perovskite solar cells via improved carrier management
Nature, 2021Jason J Yoo +2 more
exaly
Production Frontiers and Productive Efficiency
1993Abstract When discussing the performance of production units, it is common to describe them as being more or less “efficient,” or more or less “productive.” In this chapter1 I discuss the relationship between these two concepts, and I consider some hypotheses concerning the determinants of producer performance as measured by efficiency ...
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