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The purpose of this study is to determine the relationships between Lean adoption and organizational performance in a specific Greek public services subsector, namely, citizen’s service centers (CSCs).

An online structured questionnaire survey was distributed to all the Greek CSCs, and 672 employees responded and fully completed the questionnaire. Exploratory and confirmatory factor analyses were applied to assess the measurement model’s reliability and validity. The relationships between the latent constructs were examined through structural equation modeling.

The study revealed that Greek CSCs adopt at a medium to high extent the following principles: understanding customer needs, establishment of value streams, creating flows within the value streams and value perfection. The data also revealed a valid latent factor reflecting the Lean application, namely, “Lean adoption,” which, according to the findings, contributes to the organizational performance of Greek CSCs.

The small percentage of the responding employees of the Greek CSCs, given their large population and the subjective nature of the data collected, constitute the main limitations of the present study.

The findings of this research will serve as a reference source for managers and decision-makers of CSCs in order for them to set the foundations for successfully adopting the Lean principles and therefore improve their organizational performance in terms of operational performance and satisfaction with employees and citizens.

Building on the public sector literature, to the best of the authors’ knowledge, this is the first study that evaluates the adoption of Lean principles in the Greek CSCs and defines the relationships between Lean adoption and organizational performance.

In times of strong global competition and worldwide economic downturn, there is an imperative need for public services organizations to reform and improve their quality. These organizations can base their improvement efforts on Lean philosophy. The purpose of this study is to assess the employees’ perceived degree of adoption of Lean principles by public services organizations in Greece. Determining the differences in the perceptions of groups of employees with regard to the adoption of Lean principles by public organizations is also an aim of the study.

A questionnaire survey was published online, inviting employees of Greek public services organizations to assess the degree of Lean adoption by their organizations, specified on the basis of general principles. A total of 1,022 employees completed the structured questionnaire. Descriptive statistics were applied to assess the degree of adoption of Lean principles by public organizations. The nonparametric Mann–Whitney U Test and Kruskal–Wallis Test were also applied to determine whether there are statistically significant differences in the perceptions of groups of employees with regard to the adoption of Lean principles by public organizations.

According to the perceptions of employees, Greek public organizations adopt Lean principles to a high extent. However, there is room for further improvement in the degree to which Lean is adopted. Statistically significant differences are observed in the perceptions of groups of employees from different sized organizations, hierarchical levels, skill sets and service subsectors, with regard to the degree of adoption of Lean principles by their organizations.

The employees of the public sector who were invited to respond to the survey through social media, the subjective nature of the data collected and the fact that this is a country-specific study constitute the main limitations of the present study, based on which future studies can be designed.

By determining the strong and weak points of the adoption of Lean principles by Greek public services organizations, suitable managerial initiatives can be undertaken by these organizations to fully adopt Lean, eliminate waste and enhance quality management.

Understanding and improving the current status of the adoption of Lean principles by Greek public organizations will influence the services provided to the citizens in terms of time, quality and delivery.

To the best of the authors’ knowledge, this is the first study which provides insights, based on employees’ perceptions, into the adoption of Lean by the public services sector.

The aim of this study is to determine the most critical success factors (CSFs) of lean adoption in a specific Greek public services subsector namely citizen's service centers (CSCs) and to define their underlying structure (latent constructs).

In this study an online structured questionnaire survey was distributed to all the Greek CSCs and six hundred and seventy-two employees responded and fully completed the questionnaire. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were applied to assess the reliability and validity of the latent constructs of the Lean CSFs.

Data analysis revealed that the latent constructs of the lean CSFs, namely communication, top management commitment and leadership, organizational culture, training and education, change and project management, availability of resources, teamwork, and employee involvement and empowerment are of major importance for the adoption of lean in the CSCs.

The small percentage of the responding employees of the Greek CSCs, given their large population and the subjective nature of the data collected constitute the main limitations of the present study.

The findings of this research can guide managers and decision makers of CSCs in recognizing the key factors that potentially will influence the successful adoption of lean, and the enhancement of the quality management initiatives of these services organizations. Moreover, the formulated model can also serve as a reference for academics and researchers to generate new research ideas. Finally, the results may offer guidelines to managers of public services organizations of other countries with a similar structure of the public sector.

The present study is stimulated by the existing gap identified in the literature in the field of the public sector. Building on the public sector literature, this is the first study that evaluates the importance of the CSFs of lean in the Greek CSCs and defines their underlying structure.

Citizen's service centers (CSCs) are front-end delivery public points which aim to reduce bureaucratic procedures and improve citizens' services. The present study, based on the citizens' perceptions, aims to explore the impact of the CSCs' service quality on citizens' satisfaction and also to identify statistically significant differences with regard to service quality dimensions and citizen satisfaction among different groups of citizens.

A questionnaire survey was carried out based on the five dimensions of the SERVPERF model. Random sampling was used to acquire a representative and reliable sample of 1,226 respondents. Descriptive statistics, multiple linear regression analysis, T-test and ANOVA were applied to analyze the data.

According to the citizens' perceptions, the levels of the service quality dimensions and citizen satisfaction are medium to high. The service quality dimensions have a statistically significant impact on citizens' satisfaction. Moreover, statistically significant differences are observed among groups of citizens in terms of the service quality dimensions and citizen satisfaction.

The present study is stimulated by the existing gap identified in the literature in the field of the public sector and more specifically in the CSCs. Building on the public sector literature, the study examines the relationship between service quality dimensions and citizens' satisfaction from the services provided by the Greek CSCs, which are innovative public service organizations operating all over Greece. It also highlights key implications for public organizations and government policy decision-makers based on citizens' demographic characteristics.

The purpose of this study is to identify the practical implications of Lean, Six Sigma (SS) and Lean SS (LSS) in the public administration sector. Determining the key themes of these practical implications is also an aim of the present study.

A systematic literature review (SLR) was conducted based on the databases of six well-known academic publishers, namely, Emerald, Elsevier/Science Direct, Springer Link, Taylor and Francis, Sage and Willey online. The review revealed 56 peer-reviewed journal articles published between 2004 and 2020. The “affinity diagram” was applied to group the practical implications of Lean, SS and LSS into logical themes.

A plethora of practical implications of Lean, SS and LSS in the public administration sector are identified in the literature, examples of which are analytically presented. The analysis showed that the practical implications identified can be grouped into 14 meaningful themes, and these themes in turn into categories, formulating thus, a conceptual framework. The key themes that are supported in the literature by most references are the following: human factors involved in Lean/SS/LSS, Lean/SS/LSS benefits and Lean/SS/LSS implementation issues.

Although several databases were used, some publishers might have been missed out in this SLR. The subjectivity in applying the “affinity diagram” is also a limitation of this study. Based on these limitations, further literature review studies can be designed.

Twofold implications arise from the present study, meaning from the practitioner and the academic perspective. The practical implications identified as well as their meaningful themes revealed constitute useful guidelines for managers and decision-makers wishing to implement Lean/SS/LSS in the public administration sector and bridge their knowledge gap between theory and practice. Moreover, all the practical dimensions of Lean/SS/LSS included in the comprehensive conceptual framework formulated could serve as research avenues for academics.

The application of Lean/SS/LSS in the public sector has not been widely reviewed, while the stream of literature focuses on limited issues (critical success factors, benefits, challenges, etc.). Moreover, SLRs in services and specifically in the public administration sector are fewer. Stimulated by this gap and the suggestions of other researchers for future studies, to the best of the authors’ knowledge, this study provides the first SLR which analyzes the practical implications of Lean/SS/LSS in the public administration sector and determines their key themes.