Cinzia Daraio's Advanced Robust and Nonparametric Methods in Efficiency PDF

By Cinzia Daraio

ISBN-10: 0387351558

ISBN-13: 9780387351551

Providing a scientific and entire therapy of modern advancements in potency research, this readable booklet makes to be had an intuitive but rigorous presentation of complicated nonparametric and powerful equipment. this versatile toolbox can be utilized in theories in line with the neoclassical conception of creation and its possible choices, together with evolutionary theories. The equipment are complemented by way of empirical research of 3 varied fiscal fields: clinical examine, mutual money and the coverage area. The learn demonstrates the software of the toolbox for quite a lot of financial matters, together with the research of economies of scale and scope, dynamics of age and agglomeration results, trade-offs in construction and repair actions, and factors of potency differentials. Of curiosity to utilized economists commonly, this ebook can be of curiosity to these involved in Operations learn and/or administration Science.

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Additional info for Advanced Robust and Nonparametric Methods in Efficiency Analysis: Methodology and Applications

Example text

N}. e. the FDH 34 The measurement of efficiency estimator of Ψ) is defined as: ΨF DH = (x, y) ∈ Rp+q + | y ≤ Yi ; x ≥ Xi , (Xi , Yi ) ∈ X . 20) It is the union of the all positive orthants in the inputs and of the negative orthants in the outputs whose origin coincides with the observed points (Xi , Yi ) ∈ X (Deprins, Simar and Tulkens, 1984). 4 where the FDH estimator is compared with the DEA estimator of the input and output requirement sets, respectively. , by substituting the unknown quantities (in this case Ψ) by their estimated values (here ΨF DH , for the DEA case ΨDEA ).

The production set Ψ can also be retrieved from the inputs sets, specifically: Ψ = {(x, y) | x ∈ C(y), y ∈ Rq+ }. 5) which tells us that the output and input sets are equivalent representations of the technology, as is Ψ. The isoquants or efficient boundaries of the sections of Ψ can be defined in radial terms (Farrell, 1957) as follows. 6) and in the output space: ∂P (x) = {y|y ∈ P (x), λy ∈ P (x), ∀λ > 1}. 7) The axiomatic approach to production theory (Activity Analysis framework) assumes that the technology (production model) satisfies certain properties or axioms.

The analyst in fact has to provide also information on expected values of all variables for all DMUs, and variance-covariance matrices for each variable across all DMUs. An alternative to this approach is given by a fuzzy programming approach to DEA and FDH efficiency measurement. There is an increasing number of studies that apply the fuzzy set theory in productivity and efficiency contexts. In some production studies, the data that describe the production process cannot be collected accurately due to the fact that measurement systems have not been originally designated for the pur- 12 See also Lovell (2001) and Fried, Lovell and Schmidt (2006) for a presentation of some recent fruitful research areas introduced in parametric and nonparametric approaches to efficiency analysis.

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Advanced Robust and Nonparametric Methods in Efficiency Analysis: Methodology and Applications by Cinzia Daraio


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