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Journal of the Operational Research Society, ISSN 0160-5682, 12/2019, Volume 70, Issue 12, pp. 2127 - 2142
Comparing decision making units to detect their potential efficiency improvement, without relying on parametric unverifiable assumptions about the production... 
DEA | multi-output | order-m | robust | FDH | order-α | order–m | order–α
Journal Article
Journal of Cleaner Production, ISSN 0959-6526, 03/2017, Volume 147, pp. 431 - 441
Journal Article
International Journal of Mathematics in Operational Research, ISSN 1757-5850, 2018, Volume 12, Issue 4, pp. 457 - 470
Journal Article
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X, 2017, Volume 10342
Conference Proceeding
Energy Policy, ISSN 0301-4215, 06/2019, Volume 129, pp. 985 - 996
This study investigates the role of natural resource abundance on healthcare efficiency in Appalachia. Unconditional efficiency measures are calculated from a... 
Robust conditional order-m | Healthcare efficiency | Nonparametric econometrics | Appalachia | MIGRATION | MORTALITY | ENERGY & FUELS | INEQUALITY | RURAL-AREAS | COUNTIES | ENVIRONMENTAL SCIENCES | OBESITY | NONPARAMETRIC FRONTIER MODELS | POVERTY | DISPARITIES | ECONOMICS | ENVIRONMENTAL STUDIES | SOCIOECONOMIC-STATUS
Journal Article
PHYSICAL REVIEW A, ISSN 1050-2947, 08/2006, Volume 74, Issue 2
Corrections of order alpha R-4 are calculated for the singlet states 1 S-1(0) and 2 S-1(0) of the helium atom. The result for the 1 S-1(0) state is in slight... 
ENERGY | GROUND-STATE | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | ATOMS | OPTICS | BOUND-STATE | LAMB SHIFT | ORDER M-ALPHA
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 06/2013, Volume 87, Issue 6, p. 062506
We present a variational approach to evaluate relativistic corrections of order alpha(2) to the Bethe logarithm for the ground electronic state of the Coulomb... 
HYDROGEN | STATES | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | MOLECULAR ION | ANTIPROTONIC HELIUM | OPTICS | LAMB SHIFT | ORDER M-ALPHA | Physics - Atomic Physics | Atomic Physics | Physics
Journal Article
European Journal of Operational Research, ISSN 0377-2217, 09/2019, Volume 277, Issue 2, pp. 784 - 797
Journal Article
European Journal of Operational Research, ISSN 0377-2217, 09/2015, Volume 245, Issue 2, pp. 612 - 622
Journal Article
International Journal of Mathematics in Operational Research, ISSN 1757-5850, 2017, Volume 11, Issue 2, pp. 204 - 218
Journal Article
European Journal of Operational Research, ISSN 0377-2217, 11/2014, Volume 239, Issue 1, pp. 237 - 242
Journal Article
REVISTA DE CONTABILIDAD-SPANISH ACCOUNTING REVIEW, ISSN 1138-4891, 2019, Volume 22, Issue 2, pp. 129 - 144
This paper examines cost efficiency in the Spanish municipal public sector, in a specific geographic area (the Canary Isles, Spain), with respect to financial... 
LONG-TERM | DEA | Local public sector | MANAGEMENT | QUALITY | MUNICIPALITIES | Borrowing | DETERMINANTS | PERFORMANCE | EXPLAINING DIFFERENCES | Order-m | FRONTIER MODELS | BUSINESS, FINANCE | Efficiency | SERVICE | Financial condition
Journal Article
Computers and Mathematics with Applications, ISSN 0898-1221, 2010, Volume 60, Issue 5, pp. 1299 - 1309
Journal Article
SUSTAINABILITY, ISSN 2071-1050, 04/2019, Volume 11, Issue 7, p. 2056
Many studies have been undertaken to determine whether waste collection services are provided more efficiently by private or by public management. To date,... 
GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | efficiency | MANAGEMENT | PERFORMANCE | local government | SOLID-WASTE | HOUSEHOLD WASTE | LOCAL-GOVERNMENTS | order-m data panel | NONPARAMETRIC EFFICIENCY | waste collection | ENVIRONMENTAL SCIENCES | COST EFFICIENCY | CONTRACTING-OUT | PRIVATIZATION | TECHNICAL EFFICIENCY | ENVIRONMENTAL STUDIES
Journal Article
European Journal of Operational Research, ISSN 0377-2217, 09/2016, Volume 253, Issue 2, pp. 456 - 471
Journal Article