Logistics Performance Index: Methodological Issues

2020 ◽  
Vol 55 (4) ◽  
pp. 466-477
Author(s):  
Satyendra Nath Chakrabartty
Keyword(s):  
Performance Index ◽  
Geometric Mean ◽  
Principal Component ◽  
Point Of View ◽  
Geometric Means ◽  
Jel Codes ◽  
Critical Areas ◽  
Logistics Performance Index ◽  
Bivariate Normality ◽  
Underlying Variable

This article addresses limitations of Logistics Performance Index (LPI) and suggests remedies. Reliability of the instrument used in LPI may be better found by Angular Association method or Bhattacharyya’s measure, using only the frequencies or probabilities of item–response categories without involving assumptions of continuous nature or linearity or normality for the observed variables or the underlying variable being measured. The suggested methods also avoid test of uni-dimensionality, assumption of normality, bivariate normality. The problems of outlying observations and linear assumptions in principal component analysis for finding reliability theta are also avoided in each proposed method. Geometric mean approach provides a better alternative to compute LPI scores avoiding scaling and calculation of weights satisfies many desired properties and reduces level of substitutability between components, facilitates statistical test of equality of two geometric means and identifies critical areas for corrective measures. Such identifications are important from a policy point of view. The graph of LPI for a country over a long period of time reflects pattern of growth of LPI for the country. The method helps to rank and benchmark the countries, if the target vector is taken as LPI score of the best performing country. JEL Codes: C43, C54

scholarly journals To Weight or Not to Weight, That Is the Question: The Design of a Composite Indicator of Landscape Fragmentation

2021 ◽  
Vol 11 (7) ◽  
pp. 3208
Author(s):  
Andrea De Montis ◽  
Vittorio Serra ◽  
Giovanna Calia ◽  
Daniele Trogu ◽  
Antonio Ledda
Keyword(s):  
Principal Component Analysis ◽  
Geometric Mean ◽  
Composite Index ◽  
Weighted Average ◽  
Principal Component ◽  
Expert Judgment ◽  
Landscape Fragmentation ◽  
Composite Indicator ◽  
Per Se ◽  
Higher Sensitivity

Composite indicators (CIs), i.e., combinations of many indicators in a unique synthetizing measure, are useful for disentangling multisector phenomena. Prominent questions concern indicators’ weighting, which implies time-consuming activities and should be properly justified. Landscape fragmentation (LF), the subdivision of habitats in smaller and more isolated patches, has been studied through the composite index of landscape fragmentation (CILF). It was originally proposed by us as an unweighted combination of three LF indicators for the study of the phenomenon in Sardinia, Italy. In this paper, we aim at presenting a weighted release of the CILF and at developing the Hamletian question of whether weighting is worthwhile or not. We focus on the sensitivity of the composite to different algorithms combining three weighting patterns (equalization, extraction by principal component analysis, and expert judgment) and three indicators aggregation rules (weighted average mean, weighted geometric mean, and weighted generalized geometric mean). The exercise provides the reader with meaningful results. Higher sensitivity values signal that the effort of weighting leads to more informative composites. Otherwise, high robustness does not mean that weighting was not worthwhile. Weighting per se can be beneficial for more acceptable and viable decisional processes.

scholarly journals Pharmacokinetic Interactions between the Hormonal Emergency Contraception, Levonorgestrel (Plan B), and Efavirenz

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Monica L. Carten ◽  
Jennifer J. Kiser ◽  
Awewura Kwara ◽  
Samantha Mawhinney ◽  
Susan Cu-Uvin
Keyword(s):  
Geometric Mean ◽  
Liver Function Tests ◽  
Open Label ◽  
Time Curve ◽  
Geometric Means ◽  
Concentration Time ◽  
Plan B ◽  
Effective Contraception ◽  
Grade 3 ◽  
Hiv Negative

Objectives. Compare the Plan B levonorgestrel (LNG) area under the concentration- time curve (AUC12) prior to and with efavirenz (EFV).Design. Prospective, open-label, single-arm, equivalence study.Methods. Healthy HIV-negative subjects underwent 12 hr intensive pharmacokinetic (PK) sampling following single dose LNG alone and after 14 days of EFV. Geometric means, Geometric Mean Ratios, and 90% confidence intervals (CI) are reported for PK Parameters.T-tests were utilized. Clinical parameters and liver function tests (LFTs) were assessed.Results. 24 women enrolled and 21 completed the study. With EFV, LNG AUC12was reduced 56% (95% CI: 49%, 62%) from 42.9 to 17.8 ng*hr/mL, and maximum concentration (Cmax⁡) was reduced 41% (95% CI: 33%, 50%) from 8.4 to 4.6 ng/mL. LNG was well tolerated with no grade 3 or 4 treatment-related toxicities.Conclusions. EFV significantly reduced LNG exposures. Higher LNG doses may be required with EFV. These results reinforce the importance of effective contraception in women taking EFV.

Exploratory study explicating value addition of emerging technologies in the infrastructure component of Logistics Performance Index (LPI)

2022 ◽  
Vol 12 (1) ◽  
pp. 0-0
Keyword(s):  
World Bank ◽  
Performance Index ◽  
Delphi Technique ◽  
Research Study ◽  
Emerging Technologies ◽  
Poor Performance ◽  
The World Bank ◽  
Logistics Performance Index ◽  
Logistics Capabilities ◽  
Hierarchy Process

India had undertaken several logistics development agendas.Initiatives were aligned to improve the logistics infrastructure in India. Advancement in technology had also benefited the logistics sector. Logistics Performance Index (LPI) has been a multi-dimensional evaluation criterion developed by the World Bank to assess logistics capabilities of countries. The LPI score of India had been low. Regarding this, present research study aimed to analyse the poor performance of India in LPI and how the deployment of emerging technologies could help improve it. The findings were based on a questionnaire shared with five experts. Delphi technique was applied for this study. The prioritization was identified through Analytical Hierarchy Process. The key findings in this study were prioritization of application of emerging technologies for various sub-dimensions of infrastructure like roadways, railways, ports, airports, warehouse, and institution. Emerging technologies like cloud computing, blockchain, internet of things were emphasized by experts to improve the infrastructure of India.

scholarly journals Analyzing Dependent Variables with Multiple Surrogates in Accounting Research

2018 ◽  
Author(s):  
Enyi Enyi
Keyword(s):  
Logistic Regression ◽  
Regression Analysis ◽  
Performance Studies ◽  
Geometric Mean ◽  
A Priori ◽  
Geometric Means ◽  
Canonical Correlations ◽  
Dependent Variables ◽  
Actual Outcome ◽  
Ethical Clearance

The paper contains details a research carried out to show that the use of geometric mean to unify multivariate dependent variables in financial performance studies gives better and more practical results than the multiple abstraction analysis provided using advanced econometric tools such as TLS, PLS, MCA, Canonical correlations etc.<div>The study used the logistic regression analysis to compare the a priori expectations of 30 Ph.D research theses with their actual outcomes using econometric tools and the actual outcome using geometric means. The study used Ph.D theses in accounting and finance sourced from the libraries of four universities in Nigeria.</div><div>The study was a desktop research using publicly available literary resources and as such requires no ethical clearance.</div>

scholarly journals Logistic Performance Measurement on a Port in Aceh

2018 ◽  
Vol 20 (1) ◽  
pp. 59-64
Author(s):  
Prima Denny Sentia ◽  
Regita Ramadani ◽  
Sarika Zuhri
Keyword(s):  
Performance Index ◽  
Performance Indicator ◽  
Transportation Cost ◽  
Vital Role ◽  
Performance Measurements ◽  
Literature Study ◽  
Access Port ◽  
Sea Transportation ◽  
Challenges And Opportunities ◽  
Logistics Performance Index

Indonesia government has established sea toll program through Presidential Regulation No.17 in 2017 to support inter-island distribution. Port X in Aceh is one of the ports included in sea toll program. This paper discusses logistic performance m.easure, especially in sea transportation. A Logistic Performance Index (LPI) is proposed as a tool to identify challenges and opportunities in Port X performance. Key indicators which affect the value of logistics performance index will also be studied in this paper. There are several logistic performance measurements for port X based on literature study: quality, delivery cost, transportation cost, and information. Eight indicators affect Port X performance: quality of the commodity, the quantity of the commodity, on time delivery, ship call, sea transportation cost, storage cost, electronic availability, and electronic access. Port X average total index, based on Analytical Hierarchy Process, is 2,557. This value can be considered as quite reasonable. The study limits logistic performance for the arrival route of the container vessel leading to Port X. The final result shows that quality performance indicator (quality quantity of commodity index) has the highest index for all originating port. The second highest index is electronic information availability index. Through this finding, Port X must improve their service and information because it plays a vital role in their performance

scholarly journals Recognition of International Education in Japanese Teachers

2017 ◽  
Vol 5 (2) ◽  
pp. 53 ◽  
Author(s):  
Masami Yoshida
Keyword(s):  
International Education ◽  
School Environment ◽  
Geometric Mean ◽  
Intercultural Education ◽  
Multiple Comparison ◽  
Geometric Means ◽  
Suburban Areas ◽  
The Third ◽  
Questionnaire Method ◽  
Multiple Comparison Procedures

Education for international understanding in Japan was focused to develop its own national identity as well as to recognize its coexistence through intercultural education. Then, we have investigated the opinions of Japanese school teachers in terms of their recognition of the necessary content to introduce school instruction of intercultural education using a questionnaire method. In the questionnaire, 14 items of three principles were extracted from the criteria of UNESCO (United Nations Educational, Scientific, and Cultural Organization). For analyzing the collected data, the geometric mean was used. Subsequently, a one-way ANOVA test and multiple-comparison procedures were conducted. By including teachers in suburban areas in Japan, we obtained 123 valid responses. All items showed a necessary level of geometric means, and particularly items of the first principle “respect cultural identity” and items of the second principle “provide knowledge for participation” showed statistically significant positive necessity levels. However, an answer of “I have never thought” increased in the third principle “provide a chance to contribute” that was closely related to present world concern of global citizenship education and statistically was not significant. From the result of the multiple-comparison procedures of the second principle and the third principle, seven pairs of statistically different items were extracted. Then, we discussed the enhancement between Japan and UNESCO and influence of school environment in Japan.

The logistics performance analysis in European Union – EU-15 vs. EU-13

2020 ◽  
Vol 5 (3) ◽  
pp. 5-16
Author(s):  
Helga Pavlić Skender ◽  
Antonela Štefanić ◽  
Petra Zaninović
Keyword(s):  
European Union ◽  
Performance Analysis ◽  
Performance Index ◽  
Logistics Performance Index

Logistyka stanowi 14% całkowitego PKB krajów Unii Europejskiej, co wskazuje na duże znaczenie tego sektora dla wyników ekonomicznych krajów członkowskich Unii Europejskiej. Rynek logistyczny krajów UE-15 jest dobrze rozwinięty, podczas gdy większość krajów UE-13 powinno podjąć działania dla rozwoju słabej infrastruktury kolejowej oraz pochylić się nad kwestiami politycznymi związanymi z korupcją, czy brakiem konkurencyjności. Szybko rozwijające się gospodarki UE-13 mogą jednak skorzystać na poprawie rynku usług sektora logistycznego. Celem artykułu było określenie wydajności sektora logistyki w Unii Europejskiej z podziałem na kraje UE-15 i UE-13. W pracy wykorzystano wskaźnik wydajności logistyki według Banku Światowego (Logistics Performance Index – LPI), który jest narzędziem określającym jakość, szybkość, dokładność i prostotę procesów logistycznych. Analiza objęła okres od 2010 do 2018 roku. Wyniki wskazują, że niektóre kraje UE-13 pozostają w tyle za członkami UE-15 pod względem wyników logistycznych, podczas gdy kraje takie jak Polska, Czechy i Węgry osiągają najlepsze wyniki logistyczne wśród krajów UE-13. Wyniki wskazują również na korelację między wynikami logistyki a wzrostem gospodarczym. To oznacza, że kraje UE-13 muszą zrobić krok naprzód w swoich wynikach logistycznych, aby zintegrować się z regionalnym i globalnym łańcuchem dostaw, a tym samym poprawić swoją pozycję gospodarczą i konkurencyjność.

The Use of E-Questionnaires in Organizational Surveys

2013 ◽  
pp. 1-23
Author(s):  
Yael Brender-Ilan ◽  
Gideon Vinitzky
Keyword(s):  
Principal Component Analysis ◽  
Cluster Analysis ◽  
Human Resource ◽  
Principal Component ◽  
Point Of View ◽  
Future Research ◽  
Advantages And Disadvantages ◽  
Organizational Surveys ◽  
Exploratory Survey ◽  
Hr Managers

In recent years, there has been an increase in academic studies that examine the advantages and disadvantages of using e-questionnaires in organizations, but these studies have tended to ignore the potential differences between human resource (HR) managers and HR consultants with regards to using this tool. This chapter examines the use of e-questionnaires from the point of view of both types of practitioners. The study includes a qualitative exploratory survey, as well as a quantitative survey. T-tests, cluster analysis, and principal component analysis are performed and results support the three propositions that are presented. Specifically, it was found that (a) HR consultants and HR managers differ in the ranking of factors they think are important when deciding whether to use e-questionnaires; (b) preference differences exist between HR managers and HR consultants - managers are more directed by organizational constraints than consultants; and (c) the groupings for e-questionnaire preferences, compared to paper-and-pencil questionnaires, are consistent with Caldwell’s (2003) four roles of HR managers. The chapter concludes with implications and suggestions for future research.

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