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This study aims to address the global food waste problem in restaurants by analyzing customer sales information provided by restaurant tickets to gain valuable insights into directing sales of perishable products and optimizing product purchases according to customer demand.

A system based on unsupervised machine learning (ML) data models was created to provide a simple and interpretable management tool. This system performs analysis based on two elements: first, it consolidates and visualizes mutual and nontrivial relationships between information features extracted from tickets using multicomponent analysis, bootstrap resampling and ML domain description. Second, it presents statistically relevant relationships in color-coded tables that provide food waste-related recommendations to restaurant managers.

The study identified relationships between products and customer sales in specific months. Other ticket elements have been related, such as products with days, hours or functional areas and products with products (cross-selling). Big data (BD) technology helped analyze restaurant tickets and obtain information on product sales behavior.

This study addresses food waste in restaurants using BD and unsupervised ML models. Despite limitations in ticket information and lack of product detail, it opens up research opportunities in relationship analysis, cross-selling, productivity and deep learning applications.

The value and originality of this work lie in the application of BD and unsupervised ML technologies to analyze restaurant tickets and obtain information on product sales behavior. Better sales projection can adjust product purchases to customer demand, reducing food waste and optimizing profits.

Amidst pressing environmental concerns, the service industry has increased its focus on sustainable production and consumption patterns. This study aims to explore whether Generation Z’s perceived value of plant-based food influences feelings of guilt as a result of consuming meat instead of plant-based food and/or pride from consuming plant-based foods, which might then lead to decisions to purchase alternative plant-based products at restaurants.

A survey was conducted measuring a range of variables and their relationships. The hypothesized model was tested using covariance-based structural equation modeling.

Results showed that perceived social value significantly influenced guilt and pride with perceived emotional value only influencing pride. Both guilt and pride significantly influenced the decision to switch eating patterns from conventional meat to plant-based protein at restaurants. And, finally, environmental concern significantly moderated the effect of emotional value on guilt.

To achieve sustainable goals, food producers should promote plant-based menu items by increasing the awareness of social approval through marketing communications.

This study bridges a gap in the literature by investigating how consumers’ perceived value affects their anticipated emotional feelings of guilt and pride leading to the switch from meat-based to plant-based diets at restaurants.

This study attempts to ascertain how behavioral intention and word-of-mouth communication is affected by belonging, attitude toward behavior and subjective norm found in the theory of reasoned action. The research universe consists of customers visiting local restaurants operating in Afyonkarahisar.

The survey technique was used to collect data from customers visiting local restaurants between 05 September and 05 November 2022, using the convenience sampling method. The acquired data (n = 385) were analyzed using the structural equation model and the SmartPLS statistical tool.

The study findings indicate that behavioral intention is positively and significantly influenced by behavioral attitude, subjective norm and behavioral norm, but not by belonging. However, behavioral intention significantly and favorably influences word-of-mouth. When the indirect effect of study findings was analyzed, it was showcased that behavioral intention and attitude indirectly influence subjective norm and word-of-mouth communication, but belonging has no such effect.

The results suggest that businesses should focus on using local products as customers have a positive attitude toward them and provide customers with a sense of belonging to increase word-of-mouth communication. Additionally, the study highlights the importance of subjective norms in shaping customers' intentions and behavior toward local products.

The contribution of this article is valuable in terms of meeting this quest of visitors who have the motivation to introduce and experience the local culture, especially the Reasoned Action Theory of Word-of-Mouth communication approach of the customers, who play an essential role in the promotion and marketing of local restaurants selling local products, and to make a difference in their travels. Findings indicate that businesses should use local products, and customers need a sense of belonging. However, there is a subjective norm and attitude toward local products, and they should provide the necessary tendencies to gain a sense of belonging.

This study aims to demonstrate that the Dynamic Performance Management (DPM) framework, integrating performance management with system dynamics modelling, enables decision-makers to identify sustainable strategies in online food delivery platforms, thereby avoiding company failure.

This study undertakes a multistep methodological approach. After the literature review, a retrospective case study approach was used. To build the DPM framework and the system dynamics simulation model, primary and secondary data were collected and analysed.

This study by adopting the DPM perspective highlights the critical role performance drivers play to assess the viability of alternative growth strategies in food delivery digital platforms. As such, the findings complement extant studies which highlighted the need for adopting a dynamic perspective in Performance Measurement and Management (PMM), particularly in complex and turbulent environments. Findings also highlight that in food delivery platforms, network effects may result insufficient to reach a critical volume of users and factors such as key drivers impacting platform attractiveness must be considered to design effective PMM.

Future studies may apply the DPM framework here suggested to multiple digital platforms, to validate this study's findings.

This paper offers a guidance to practitioners and scholars to design effective PMM in food delivery digital platforms.

This study offers an innovative perspective to analyse the interdependences among main mechanisms underpinning the performance of food delivery platforms. As such, it contributes to enrich prior PMM literature and addresses the call for more empirical and theoretical PMM contributions in fast-changing and turbulent environments.

Using the lens of crisis innovation and strategic alignment, this study explores how a segment of the restaurant sector that may be less agile than others—Michelin-starred restaurants—perceives and aligns with the challenges brought about by the COVID-19-pandemic.

The study collected data from 19 Michelin-starred restaurants in Spain using a qualitative interview method. The data were analyzed qualitatively and organized thematically.

Four key categories of strategic challenges were identified: human resources, uncertainty, control and economic challenges. In response, chefs displayed both behavioral and organizational strategies. Those organizational strategies were new human resource management, reorganization, product and service innovation and marketing. While the new human resource management actions adopted to align with the human resource challenges identified, a misalignment remains between some of the other strategic actions, such as product and service innovation, marketing and economic and uncertainty challenges.

The findings offer new insight into Michelin-starred restaurant chefs' challenges and (mis)alignment strategies, an area that has been understudied in the current literature on innovative responses in the hospitality sector post-pandemic.

Although not yet fully defined, natural wine represents a sector that has gained the widespread attention of final consumers and, therefore, also of the restaurant world, because of its promise of sustainability. The objective of this paper is to understand Italian haute cuisine's interest in natural wine, with the aim of analysing what qualifies this product as sustainable.

After introducing a theoretical framework based on the concept of natural wine, a brief paragraph is dedicated to consumer preferences; subsequently, the analysis focusses on a questionnaire given to restaurateurs to determine the impact that natural wine has had in the Italian context. The results try to identify the importance that restaurateurs give to the characteristics of natural wine and their propensity for using such wine in their own businesses.

The analysis, conducted on a sample of medium-high range restaurants, highlights their strong interest in natural wine, as a result of the final consumers' attitude towards wine with characteristics attributable to sustainability. The positive perception by restaurateurs is similar across Italy, both geographically and in terms of the size of the restaurant.

The originality of the work is the focus on the world of restaurants. To date, the literature on natural wine remains embryonic and always refers to the final consumer. This research is the first step in a broader study that will involve a greater number of restaurants, extending beyond Italy to all of Europe, with the aim of understanding the real development potential of natural wine.

The proliferation of the coronavirus disease (COVID-19) has threatened the service industry, especially the restaurant sector, requiring innovative ways to help restaurants overcome this challenge. Thus, based on the stimulus–organism–response (SOR) model, the purpose of this study is to examine the role of customers' perception of a restaurant's innovativeness (CPRI) in brand evangelism by mediating customer engagement (CE). Additionally, this study examines the moderating role of customer openness to experience.

A Web-based survey collected the primary data from 483 Egyptian customers. The data were analysed using the partial least squares structural equation modelling method based on WarpPLS.7 software.

According to the findings, CPRI, which acts as a stimulus in the SOR model, positively affects CE (organism) and brand evangelism (response). CE positively affects restaurant evangelism. Additionally, CE mediates the relationship between CPRI and evangelism. Openness to experience moderates the relationship between CPRI, engagement and brand evangelism.

This study addresses the gaps in understanding CE and brand evangelism within the context of restaurant innovation. This study assesses restaurant innovativeness scales of developing economies in multiple dimensions. Egyptian restaurant marketing managers should innovate products, services, experiences, and promotions to increase consumer engagement and feedback through technology.

This study investigates how Egyptian restaurants engage with and evangelise customers through innovation. This is one of the few studies that examine brand evangelism in a restaurant setting from the perspective of the SOR theory. Additionally, this study analyses CE as a mediator and openness to experience as a moderator.

This research investigates the effects of consumers' online information searching on their dining satisfaction in upscale restaurants during the pandemic. Customers frequently rely on online sources to gather information about upscale restaurants prior to their visits.

Data from 307 diners across the top ten popular upscale restaurants in Hong Kong were analysed by using SEM to explore the links between customers' needs, information search, restaurant attributes and customer satisfaction.

This study uncovers customers' online search behaviours and identifies restaurant attributes that are associated with customer satisfaction, which were not typically emphasised before the COVID-19 pandemic. Driven by their social and psychological needs, customers devoted more time to reading written comments by other consumers compared to visual images or self-descriptions from restaurants. Only service attribute significantly influenced customer satisfaction, while food and price attributes were not significant.

The findings of this study provide valuable insights for researchers and practitioners, shedding light on the altered needs and preferences of consumers following the unprecedented health crisis.

This study contributes to the development of expectancy disconfirmation theory and needs theory through the investigation of consumers' online information searching behaviours and dining satisfaction in upscale restaurants during the pandemic. By identifying the most important attributes influencing customer satisfaction, this research can aid upscale restaurants in developing effective marketing strategies and enhancing customer experiences.

Hospitality businesses are changing digitally to meet customer demands, provide value and stay competitive. Prior hospitality studies examined customers’ technology acceptance rather than digital technology readiness and acceptance. In addition, no studies have explored how restaurant customers’ digital transformation influences hedonic and utilitarian values and customer well-being. Therefore, this study aims to examine how fast-food restaurant customers’ digital transformation (i.e. technical readiness and acceptance) influences their perceived value and well-being.

This study provides a conceptual framework with six constructs. The data for this study were collected from fast-food restaurant customers in Egypt using a self-administered questionnaire.

According to the findings, customers’ technical readiness for digital transformation in fast-food restaurants substantially impacts their technology acceptance. In addition, customers’ perceived hedonic and utilitarian values are greatly influenced by their acceptance of fast-food restaurant digital technologies, and these perceived values significantly impact customer well-being.

This study presents several suggestions to improve customers’ readiness for digital transformation in fast-food restaurants and the impact on their technology acceptance and perceived value and well-being. Also, this study’s results could impact fast-food restaurants’ decisions to adopt new digital technologies (e.g. service robots) for their customers.

The study adds to the existing literature review by attempting to present a comprehensive picture of fast-food restaurant customers’ digital transformation (i.e. technical readiness and acceptance) and its impact on customers’ perceived values. A potential antecedent of fast-food restaurant customers’ well-being was also investigated: perceived hedonic and utilitarian values.

酒店业正在数字化转型, 以满足顾客需求、提供价值并保持竞争力。之前的酒店业研究主要关注顾客对技术的接受程度, 而不是数字技术准备和接受程度。此外, 没有研究探讨餐厅顾客的数字化转型如何影响享乐和功利价值以及顾客的幸福感。因此, 本研究旨在探讨快餐餐厅顾客的数字化转型（技术准备和接受程度）如何影响他们的感知价值和幸福感。

本研究提供了一个概念框架, 包括六个构面。本研究的数据通过自行填写问卷的方式从埃及的快餐餐厅顾客中收集。

根据研究结果, 快餐餐厅顾客的数字化转型技术准备程度显著影响其对数字技术的接受程度。此外, 快餐餐厅顾客对数字技术的接受程度极大地影响他们对享乐和功利价值的感知, 并且这些感知价值对顾客的幸福感产生显著影响。

本研究试图呈现出一个全面的快餐餐厅顾客的数字化转型（技术准备和接受程度）对顾客感知价值的影响机制。同时, 本研究还调查了快餐餐厅顾客幸福感的潜在前因：感知的享乐和功利价值。

本研究提出了一些建议, 以提高快餐餐厅顾客对数字化转型的准备程度, 并对他们的技术接受程度、感知价值和幸福感产生影响。此外, 本研究的结果会影响快餐餐厅采用新的数字技术（例如服务机器人）来为顾客提供服务的决策。

This study aims at analyzing the impact of green restaurants' sustainable practices (food safety, food sustainability practices, food quality, and environmental sensitivity) on consumer satisfaction and revisit intention.

A self-administered questionnaire was used to collect data from 417 participants who had recently experienced the services of leading green restaurants. The study draws upon the prevailing literature to test a series of research hypotheses through structural equation modeling.

The findings of the study have confirmed that sustainable practices such as food safety, food sustainability practices, environmental sensitivity, and food quality significantly influence consumers' satisfaction and revisit intentions. The willingness to pay has been found as a sensitive issue as it moderates the relationship between consumer satisfaction and revisit intention.

This study provides important insights for the businesses operating in foodservice industry. The study suggests important strategies to the restaurant business owners for improving their consumers' satisfaction and revisit intentions. These strategies may help foodservice businesses in building strong brand reputation and a competitive edge over others.

This study contributes to the food service literature by examining the restaurants' environmental legitimacy (food safety, food sustainability practices, food quality, and environmental sensitivity) from consumers' perspective. Moreover, the current study also fills the gap in literature by expanding the knowledge of consumers' pro-environmental behavior in the context of developing nations. Besides, to the best of the authors' knowledge, this is among very few studies, which have emphasized on analyzing consumer satisfaction and revisit intention based on their experience in a green restaurant on particular sustainable parameters.