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Sustainability 2019, 11(2), 321; https://doi.org/10.3390/su11020321

The Research Topics on E-Grocery: Trends and Existing Gaps

1
Department of Applied Economics, Faculty of Economics, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain
2
Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, 80125 Naples, Italy
*
Author to whom correspondence should be addressed.
Received: 10 December 2018 / Revised: 27 December 2018 / Accepted: 4 January 2019 / Published: 10 January 2019
(This article belongs to the Section Sustainable Transportation)
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Abstract

The aim of this paper is to analyse through a systematic literature review the main topics studied on a relatively new concept: e-grocery. This study examines the existing literature through the use of some interactive Scopus applications with the goal to provide: (1) a better understanding of the main topics that have been analysed up to now; (2) the principal methodologies that have been used; and (3) the challenges that still exist as well as literature gaps. First, we provide a summary of what has been previously researched in the field, analysing the trends regarding time, sources, authors, countries and document types. Then, tokenization, and a natural language process (NLP) that applies the Latent Dirichlet Allocation (LDA) method, is used to extract the main topics in the field. We obtain that the research topics in the discipline have always been linked with technological changes, innovation and diffusion, and environmental effects have been a cornerstone since the origin of the field. In comparison with other fields in transport economics, we notice that experimental design and choice modelling are not very popular. As a step towards future research, we propose an integrative framework for e-grocery consumer behaviour that starts from the Engel–Kollat–Blackwell (EKB) model. View Full-Text
Keywords: E-grocery; Systematic literature review; Natural Language Process; Latent Dirichlet Allocation; Engel–Kollat–Blackwell (EKB) model E-grocery; Systematic literature review; Natural Language Process; Latent Dirichlet Allocation; Engel–Kollat–Blackwell (EKB) model
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Martín, J.C.; Pagliara, F.; Román, C. The Research Topics on E-Grocery: Trends and Existing Gaps. Sustainability 2019, 11, 321.

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