Working Papers

Seria wydawnicza WNE WORKING PAPERS prowadzona jest przez WNE UW od 2008 r. i jak dotąd opublikowano w niej ponad 400 prac.

Seria WNE Working Papers służy szybkiemu upowszechnianiu wyników badań prowadzonych na Wydziale Nauk Ekonomicznych UW. Publikowane tu teksty mają charakter wersji roboczych (pre-printów): mogą być uzupełniane lub poprawiane w miarę postępu prac nad tekstem i procesu wydawniczego. Prezentujemy aktualną wersję udostępnioną przez autorów, opatrzoną datą oraz identyfikatorami DOI/ISSN – co ułatwia jej cytowanie i śledzenie kolejnych iteracji. Każdy dokument zachowuje pełne prawa autorskie swoich twórców, a w przypadku późniejszych zmian, autorzy mogą w dowolnym momencie zamieścić zaktualizowany plik lub wskazać miejsce ostatecznego wydania.

Do serii WORKING PAPERS przyjmowane są artykuły pracowników naukowych WNE UW oraz publikacje z konferencji organizowanych na WNE UW. Artykuły powinny dotyczyć ekonomii, mieć charakter oryginalnych prac badawczych, nie być wcześniej publikowane. Przyjmowane są wyłącznie teksty w języku angielskim.

Prace prosimy przesyłać e-mailem na adres: 8]&b*+d45mOvRz=t2%.M1HeU6X[]#[0MvNnuL!q^1iF72cr0~E=*JKCIH

Prosimy przesyłać dwa pliki:

(1) główny tekst bez podania tytułu artykułu oraz autorów (plik DOC/DOCX) oraz

(2) stronę tytułową zawierającą: tytuł opracowania, autorów oraz ich afiliację (plik DOC/DOCX). 

Przed przesłaniem tekstu prosimy zapoznać się z szczegółowymi wymogami edycyjnymi.

Redaktorem wydawniczym serii Working Papers jest dr Maciej Bukowski.

Ilość wyników 4

WP(13/2020)319. Dealing with uncertainties of green supplier selection: a fuzzy approach

Autorzy: Manucharyan Hayk
Increasing public awareness of environmental protection has caused the emergence of green supply chain management in recent years. As firms tend to outsource a significant part of their activities, the importance of supplier selection increases from …

WP319. Dealing with uncertainties of green supplier selection: a fuzzy approach

Increasing public awareness of environmental protection has caused the emergence of green supply chain management in recent years. As firms tend to outsource a significant part of their activities, the importance of supplier selection increases from a competitive standpoint. While most studies of supplier selection have introduced methods based on economic criteria, the number of studies that incorporate environmental issues is rather limited. In this paper, a methodology is proposed to address the green supplier evaluation and selection issue by first identifying the appropriate criteria and then developing a model for their measurement in the evaluation process. The authors apply fuzzy set theory to deal with the subjectivity of supplier selection decision-making and capture the linguistic terms used for human assessments. A rule-based fuzzy inference system is developed to evaluate suppliers based on ten environmental criteria and eventually select the best-performing supplier. The dynamic nature of the model allows the decision-makers to manipulate the importance of different supplier attributes and constructed rules, based on individual preferences. An illustrative example is also presented to show the applicability and effectiveness of the proposed methodology.


Manucharyan Hayk
supplier evaluation supplier selection supply chain economics uncertainty fuzzy logic fuzzy inference system

WP(3/2013)88. Variance estimation for richness measures

Autorzy: Brzeziński Michał
Richness indices are distributional statistics used to measure the incomes, earnings, or wealth of the rich. This paper uses a linearization method to derive the sampling variances for recently introduced distributionally-sensitive richness measures …

WP88. Variance estimation for richness measures

Richness indices are distributional statistics used to measure the incomes, earnings, or wealth of the rich. This paper uses a linearization method to derive the sampling variances for recently introduced distributionally-sensitive richness measures when estimated from survey data. The results are derived for two cases: (1) when the richness line is known, and (2) when it has to be estimated from the sample. The proposed approach enables easy consideration of the effects of a complex sampling design. Monte Carlo results suggest that the proposed approach allows for reliable inference in case of "concave" richness indices, but that it is not satisfactory in case of "convex"" richness measures.


Brzeziński Michał
richness affluence distributional indices variance estimation statistical inference

WP(2/2013)87. Accounting for trends in health poverty: A decomposition analysis for Britain, 1991-2008

Autorzy: Brzeziński Michał
We use data from the British Household Panel Survey to analyse changes in poverty of self-reported health from 1991 to 2008. Recently introduced ordinal counterparts of the classical Foster, Greer, Thorbecke (1984) (FGT) poverty measures are used to …

WP87. Accounting for trends in health poverty: A decomposition analysis for Britain, 1991-2008

We use data from the British Household Panel Survey to analyse changes in poverty of self-reported health from 1991 to 2008. Recently introduced ordinal counterparts of the classical Foster, Greer, Thorbecke (1984) (FGT) poverty measures are used to decompose changes in self-reported health poverty over time into within-group health poverty changes and population shifts between groups. We also provide statistical inference for these ordinal FGT indices. Results suggest that the health poverty rate increased independently of health poverty threshold chosen. In case of other ordinal FGT indices, which are sensitive to depth and distribution of health poverty, results depend on the health poverty threshold. The subgroup decompositions of changes in total health poverty in Britain suggest that the most important poverty-increasing factors include a rise of both health poverty and population shares of persons cohabiting and couples with no children as well as an increase of the population of retired persons.


Brzeziński Michał
health poverty ordinal FGT measures self-reported health statistical inference British Household Panel Survey

WP(1/2013)86. Asymptotic and bootstrap inference for top income shares

Autorzy: Brzeziński Michał
We analyse statistical inference for top income shares in finite samples. The asymptotic inference performs poorly even in large samples. The standard bootstrap tests give some improvement, but can be unreliable. Semi-parametric bootstrap approach is…

WP86. Asymptotic and bootstrap inference for top income shares

We analyse statistical inference for top income shares in finite samples. The asymptotic inference performs poorly even in large samples. The standard bootstrap tests give some improvement, but can be unreliable. Semi-parametric bootstrap approach is accurate in moderate and larger samples.


Brzeziński Michał
top income shares income distribution inference bootstrap semi-parametric bootstrap
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