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The purpose of this paper is to identify the attitudes of Bulgarians towards country’s historical monuments, communist heritage, communist heritage tourism and their willingness to participate in communist heritage trips.

The sample includes 359 respondents recruited via an online survey. Mann-Whitney U-test is used to identify the differences in the respondents’ attitudes towards communist heritage tourism in Bulgaria on the basis of their age, gender, frequency of visit to historical monuments, attitudes towards country’s communist past, prior visit to, familiarity with and attitude towards communist monuments and identification of communist monuments with country’s heritage.

The respondents who visited historical monuments more frequently, had more positive attitudes towards communist past of the country and its communist monuments, those who had visited and were very familiar with the communist monuments were more supportive towards donating money for the restoration of communist monuments and their inclusion in tourism supply.

The paper reveals that domestic communist heritage tourism demand exists in Bulgaria and tour operators need to focus on including communist heritage in tourism supply.

Communist heritage is controversial and different social groups perceive it differently, depending on their attitudes towards communism as a political, economic and social system.

The paper compares the attitudes towards historical and communist monuments and revealed that communist monuments received less support for inclusion in tourism supply than historical monuments; the respondents were less inclined to participate in trips to them and to donate money for their restoration.

This paper aims to analyse three decision-making approaches that involve humans and artificial autonomous agents, namely, human “in the loop”, “on the loop” and “out of the loop” and identifies the decision characteristics that determine the choice of a decision-making approach.

This is a conceptual paper that analyses the relationships between the human and the artificial autonomous agents in the decision-making process from the perspectives of the agency theory, sustainability, legislation, economics and operations management.

The paper concludes that the human “out of the loop” approach is most suitable for quick, standardised, frequent decisions with low negative consequences of a wrong decision by the artificial intelligence taken within a well-defined context. Complex decisions with high outcome uncertainty that involve significant ethical issues require human participation in the form of a human “in the loop” or “on the loop” approach. Decisions that require high transparency need to be left to humans.

The paper evaluates the decision-making approaches from the perspectives of the agency theory, sustainability, legislation, economics and operations management and identifies the decision characteristics that determine the choice of a decision-making approach.

Artificial intelligence (AI) is increasingly becoming part of the hospitality industry. In times of staff shortages, AI used in the industry can have advantages, but it also brings with it the possibility of customer backlash. The purpose of this paper is to understand the potential response of millennial guests to the potential applications of AI in the hotel industry. The emphasis was on which hotel service encounter categories are most suited to replacing employees with AI in the context of the millennial guest experience.

This quantitative research used a survey questionnaire for the data collection. Responses from 169 millennials from six continents were analysed using a combination of descriptive statistics, t-tests, MANOVA tests and Bonferroni tests.

Four service encounter categories were studied: (i) “Check-in”, (ii) “Reception Services (excl. check-in)”, (iii) “Wellness” and (iv) “Food and Beverage Services”. The results showed that of these four categories, “Food and Beverage Services” is more suited to replacing employees with AI than “Wellness”.

The findings of this research are important as they contribute to the body of knowledge related to the implementation of AI in the hospitality industry and provide useful information to policymakers and hotel managers who may wish to identify suitable areas for investment related to AI in their operations.

This study offers useful insight on a cutting-edge topic of AI application for service encounters within the hospitality sector and confirms the suitability of some encounters.

The purpose of this perspective paper is to investigate the role of robots in tourism’s contribution to the achievement of the Sustainable Development Goals (SDGs).

With a deep analysis of the 17 SDGs and their 169 targets, the authors provide an interpretation on both the positive and negative impacts of robots in tourism towards the achievement of the SDG.

For several SDGs, the positive impact of robots in tourism is evident, whereas for others, it can be debated as the adoption of robots can lead to both positive and negative impacts, mostly dependent on how robots will be used. In particular, robots can provide a decent work environment for tourism and hospitality (TH) employees (SDG 8) who perform dangerous tasks while decreasing the consumption of resources (SDGs 2, 6, 7, 12, 13) due to their contribution to a company’s effectiveness and efficiency. In the meantime, robots have some impacts on the environment, both in terms of the use of resources (their manufacturing relies on rare Earth materials and robots are energy demanding) and output, especially for the management of toxic waste (e.g. batteries).

The main limitation of this perspective paper is the lack of empirical measurement of the effects of robots in tourism on the achievement of the SDGs. However, it is a necessary exploration as a foundation for future research.

This perspective paper may be useful for robot manufacturers in identifying the positive and negative aspects of robots when designing sustainable robots (in terms of energy efficiency, management of the end-of-life of components, etc.) to conform to the expectations of the SDGs. It can be useful to TH companies when their managers evaluate whether to adopt robots in service operations or not.

This contribution discusses the social implications in adopting robots in TH, specifically in terms of new opportunities for employment and in the substitution of humans in dirty, dull and dangerous tasks. It helps policymakers adopt the best policies for fostering the use of robots in TH with an eye to the environmental and social ramifications of robots.

To the best of the authors’ knowledge, this perspective paper is one of the first studies to investigate the role that robots can play in achieving the SDGs by TH companies.

本文旨在研究机器人在旅游业对实现永续发展目标(SDGs)的贡献。

从 17 个 SDGs及其 169 个目标深入分析后, 本文从正反两面向解释机器人在旅游业中对实现SDGs的影响。

机器人总体对旅游是有正面影响的, 但对少数SDGs可能衍生负面影响。机器人可为执行高风险任务的员工(SDGs)提供安全的工作环境, 也能因其效率使公司减少资源消耗(SDGs 2、6、7、12、13)。但无论在资源使用(制造仰赖土料及能源)或废弃物 (例电池)的管理, 机器人对环境有一定的风险。

本文是少数研究机器人在旅游和酒店业实现SDGs所扮演的角色。

本文缺乏旅游机器人对实现SDGs的实证测量, 但本研究可为未来研究奠定基础。

据SDG设计机器人时, 本文从能源效率和组件报废等角度, 为制造商点出机器人的正反面影响。当经理需评估是否在服务中采用机器人时, 本文也可提供方向。

本文在促进旅游和酒店业使用机器人的同时, 也讨论它们的社会影响, 特别是提供就业机会, 及代替高风险工作的员工。

El propósito de este artículo de perspectiva es investigar el papel de los robots en la contribución del turismo al logro de los Objetivos de Desarrollo Sostenible (ODS).

Los autores aportan una interpretación sobre los impactos, tanto positivos como negativos de los robots en el turismo hacia el logro de los ODS sobre un profundo análisis de los 17 ODS y sus 169 metas.

Para varios ODS, el impacto positivo de los robots en el turismo es evidente, mientras que para otros puede debatirse, ya que la adopción de robots puede generar impactos tanto positivos como negativos, dependiendo principalmente de cómo se utilicen. En particular, los robots pueden proporcionar un entorno de trabajo digno para los empleados de turismo y hostelería (ODS 8) que realizan tareas peligrosas, al tiempo que reducen el consumo de recursos (ODS 2, 6, 7, 12, 13) debido a su contribución a la eficacia y eficiencia de una empresa turística. De igual forma, los robots tienen algunos impactos en el medio ambiente, tanto en términos de uso de recursos (su fabricación se basa en materiales de tierras raras y los robots demandan energía) como de producción, especialmente para la gestión de desechos tóxicos (p. ej., baterías).

Este artículo de perspectiva es uno de los primeros estudios que investigan el papel que pueden desempeñar los robots en el logro de los ODS por parte de las empresas de turismo y hostelería.

La principal limitación de este artículo de perspectiva es la falta de medición empírica de los efectos de los robots en el turismo en el logro de los ODS. Sin embargo, es una exploración necesaria como base para futuras investigaciones.

Este artículo de perspectiva puede ser útil para que los fabricantes de robots identifiquen los aspectos positivos y negativos al diseñar robots sostenibles (en términos de eficiencia energética, gestión del final de la vida útil de los componentes, etc.) y así cumplir con las expectativas de los ODS. Puede ser útil para las empresas de turismo y hostelería cuando sus gerentes evalúan, si adoptar o no robots en las operaciones de servicio

Esta contribución discute las implicaciones sociales en la adopción de robots en el turismo y la hostelería, específicamente en términos de nuevas oportunidades de empleo, y en la sustitución de humanos en tareas rutinarias, aburridas o peligrosas. Ayuda a los responsables políticos a adoptar mejores políticas para fomentar el uso de robots en el turismo y la hostelería teniendo en cuenta las ramificaciones ambientales y sociales de éstos.

The purpose of this paper is to examine the shocks to firm's beta around the event of addition or deletion from the S&P 500 index.

The total derivative of beta and Campbell and Vuolteenaho decomposition of beta methodologies are used, on monthly and daily basis, to examine the behavior of beta around the event.

Results show a significant increase in correlations of the event firms' returns and the market proxy returns and cash‐flow betas, and decrease in discount‐rate betas for added firms and the opposite effects for deleted firms. Robustness tests indicate that the total derivative changes effects are typical for the event firms industry but that the cash‐flow correlation changes are specific to the firm. These findings suggest that addition or deletion from the S&P 500 index is not an information free event.

The Campbell and Vuolteenaho methodology has limitations – it is conditional on the selection of state variables. In future research it would be beneficial to use different state variables in the beta decomposition framework. Another relevant question for a future research is: what are the effects of the event on the Fama‐French factor model loadings?

The paper's findings contribute to the ongoing debate in the literature of the information hypothesis for addition or deletion from the S&P 500 index.

In this paper the MOPIT system for the simulation of devices and manufacturing processes is presented. The MOPIT system is meant for the simulation of the following semiconductor processing : ion implantation of impurities , diffusion , radiation enhanced diffusion , thermal oxidation of silicon , molecular‐beam epitaxy, plasma‐chemical etching and deposition, cross‐sectional profile evolution of trench in plasma‐etching and deposition; as well as the following devices: MOS‐structures , high‐voltage diode, element of memory, charge accumulation in a sub‐gate dielectric.

The paper is making a preliminary evaluation of dark tourism potential in Bulgaria. Dark tourism is underestimated research topic in Bulgaria – a country with long and rich cultural heritage, belonging to orthodox religion, with ambiguous impacts from the communist/socialist political regime and nowadays being a typical destination for mass and 3 “S” (sun, sand, sea) tourism. The research topic is approached by starting with an inventory and classification of the main tourist attractions/sites for dark tourism according to the most widely applicable theoretical typologies, inclusively their territorial density, cities location, authenticity and commercialization. The general counterpoint is the non-western approach and the hypothesis that dark places/attractions can be explored as potential tourist resources, diversifying the cities destination supply. The places related to death within the death-tourism framework are explored within the urban landscape. The research applies supply-demand approach and includes semi-structured interviews with different stakeholders from the supply side and a questionnaire accessing the tourist’s perspective and readiness from the demand side. Special attentions is given to the cities as concentrating the major part of the dark sites/attractions in the country, being at the same time integral part of the public areas and urban landscape, with special designation and/or combination of additional recreational functions. The data and results from the conducted research revealed that dark tourism in Bulgaria, in the narrowest sense is relatively unknown, unexplored type of tourism, difficult to distinguish and overlapping with other types of tourism mainly in the cities. The paper also raises the discussion about the necessity to extend the dark tourism research in the cities, taking into account the non-western approach and cultural sensitiveness. The paper aims to discuss these issues.

The methodology of the research, in its nature, is purely qualitative, widest and most applicable (Biran A., Hyde K., 2013), (Wight, 2006) (Light, 2017) and follows two main stages: inventory, classification and potential of the dark tourism sites/attractions in Bulgaria and supply-demand approach for pilot exploratory study of the reediness of the suppliers and main stakeholders from one side, and the tourist’s perceptions from other side.

The data and results from the conducted research revealed that dark tourism in the narrowest sense in Bulgaria is relatively unknown, unexplored type of tourism, difficult to distinguish and overlapping with other types of tourism mainly in the cities. The findings challenge the predominant understanding of dark tourism typology, spectrum, and type of places/attractions (Light, 2017). Within the tourism-death relationship framework in the non-western approach with narrow focus in Bulgaria as research area, the author can confirm that the concept of dark tourism research should be extended taking into account the religion (relationship to death), historical development and political regime. The results obtained clearly show that the main difference from the western approach lies in on completely different conceptual basis, which differs from the concept of dark tourism. Tourism is mostly linked with recreation, leisure, and entertainment, while the dark places/sites related to death and suffer are mostly linked to religion, historical or political heritage. Besides being different both create and conduct to a behavior and visit of such places with deserved respect, honor and part of national identity and culture.

The study’s focus is narrow and limited at national level as part of “eastern” (non-western) context of tourism-death relationship framework. The findings resulted from pilot exploratory study provide theoretical and practical insights into understanding of dark tourism and its potential development in Bulgaria by considering the availability of dark sites/attractions, supply (readiness of main stakeholders) and demand side (tourist’s perspective). The paper limits the research in the post-modern context stressing on tourism/leisure and commercial use of death as attractions and places. Other limitations are pilot character of the exploratory study and the limited number of respondents.

The paper delivers practical insights into understanding of dark tourism and its potential development in Bulgaria by considering the availability of dark sites/attractions, supply (readiness of main stakeholders) and demand side (tourist’s perspective).

Most of the research in the field of dark tourism as expression of tourism-death relationship framework are concentrated on the “western way of thinking” (Light, 2017, p. 297) covering countries from West Europe, USA, Australia (Foote, 1997), (Bowman M., Pezzullo P., 2010, p. 188). The use of Western frameworks for understanding the tourism-death relationship in other parts of the world and particularly in Bulgaria as Eastern European and orthodox country may not be appropriate. For the specific research area – the case of Bulgaria, theoretically although incorrect, a parallel is possible between the western post-modern secularism and atheism as official communist policy between 1940 and 1990 (Metodiev, 2013). Darkness of sites/attraction identified within the tourism-death relationship and exploitation of the death is seen supporting and commemorating the sacrifice of the “heroes” of the time keeping them “eternally alive” and as symbols, incarnations of the “sacral” political power.

Although the role of human capital in the hospitality sector is critical, the industry faces challenges in attracting workers with a poor industry image frequently mentioned regarding labor shortages. This research paper attempts to investigate the factors influencing labor shortages by presenting the perspectives of employees and employers.

Precisely 232 rural hospitality industry employees (n = 128) and employers (n = 104) in Northern Italy were surveyed using a written close-ended online survey and a quantitative research design as part of a convenience sampling approach. For hypotheses testing, Spearman's rho was used.

A relationship between the shortage of professional workers and a variety of factors was found, including professional, digital, social and green skills, industry-intrinsic characteristics and symbolic image attributes of the industry. The findings show that some factors are more important for employees, while others are more significant for employers.

This study demonstrates several practical implications for the hospitality sector by addressing the under-researched stakeholder group of existing hospitality employees, e.g. improving working conditions, reduction of manual operations through digital technologies, realistic career planning, employer branding, identification of skill deficiencies and provision of specialized trainings.

Most research on labor shortages in the hospitality industry has focused on the perspective of either employees or employers. This study compares both perspectives, including the industry image, to gain a realistic picture of the relevant factors for a rural tourism destination in Northern Italy.

This study aims to examine how operator type moderates the relationship between hotel information technology (IT) expenditures and operating performance.

By adapting and extending O’Neill et al.’s (2008) and Hua et al.’s (2015) research, this study constructed an empirical model and tested proposed hypotheses, with Newey and West (1994) errors computed to accommodate potential heteroscedasticity and autocorrelation issues.

Operator type moderates the impact of hotel IT expenditures on operating performance. In particular, it appears that the operator type of franchising exerts a stronger moderating effect compared with other operator types explored.

This study, as the first of its kind, shows that the choice of operator type shapes how a hotel can effectively use IT expenditures to improve operating performance. This finding can be beneficial for hotel owners when making operator type decisions. In addition, operator type moderates the direct impact of IT expenditures on revenues and gross operating income. This study’s results show that franchised hotels seem to use IT expenditures more effectively compared with independently owned hotels.

This study contributes both theoretically and practically to understand how operator type moderates the relationship between IT expenditures and hotel performance. The research outcome provides a more holistic view that governs the relationships between IT expenditures, operator type and operating performance.

This paper aims to assess how a hotel geographical location in different parts of Central and Eastern Europe influences the complexity of perception of pro-environmental behavior.

To find out, whether hotel location in a specific country influences the complexity of environmental practices, this study used two closely connected multivariate statistical techniques analyzing gradients: principal components analysis and partial redundancy analysis. The research comprises data collection from seven countries in Central and Eastern Europe. In all, 25 randomly selected hotels (based on star rating) from various countries were approached to complete a questionnaire. Environmental practices were studied based on motivations, perception of barriers, perception of support from different levels of public sector, will of managers to promote pro-environmental measures based on sufficient funding, perception of legislation and perception of various other important factors.

The study reveals significant differences between hotels in Central Europe and Eastern Europe in the perception of the complexity in implementation of the environmental practices by hotel managers. The character of the present study, however, needs to address the identification of particular aspects that are relevant to the geographical differences among the studied countries.

Research was limited to a selection of Central and Eastern European (CEE) countries. There is still probability that managers in hotels from Poland and Croatia could possess different preferences. Other limitation of this study is that only special part of hotels were asked – hotels certified by star grading, out of our scope remained other hotels. It is also known that important factor is precise location of hotel within country – hotels in established tourism destination behave other way that those outside recreational areas. These factors deserve further study within this topic. There are many aspects of sustainability and environmental protection regarding hotel industry. As we have found in our principal correspondence analysis, different environmental measures were different location in biplot – some were affected by country, the other by star grading and affiliation to hotel chain. The complexity deserves to be studied in depth.

The importance lies first in the identification of the aspects that are governed by geographical differences among the countries studied. These aspects are the initiatives and support from the government and the local governments, which counteract the perception that there is a lack of financial resources and the return on investments is slow. So, based on the data, which included information from various types of hotels from seven CEE countries, the activities of national and local authorities were identified to be the main differentiating variable. The support of the environment-friendly conduct of business in the hotel industry is appreciated by hotel managers from Central Europe. On the other hand, hotel managers from Eastern Europe do not feel any significant support from either national or other public institutions. The second factor of differentiation is represented by the perception of the lack of funds. Hotel managers from Eastern Europe feel strongly about funds limitation. The coherence of both those factors is obvious in the results, as they show the same direction but opposite orientation. It has already been discussed above. When looking at the results, the authors find the perception of availability of funds to be a fundamental difference between hotel management in Central Europe and in Eastern Europe. The lack of funds is perceived more intensively in Eastern Europe than in Central Europe, particularly because of a stronger awareness of direct or indirect support for such activities by national and other public institutions in Central Europe.

The differentiation of the aspects mentioned above comes from the social and culture policies, company policies and business cultures between these two sub-realms. Pro-environmental actions are apparently promoted less publicly in Eastern European countries than in Central European countries. The reaction to the trend for demand of greener hotels is stronger in the West, and its hotels are more likely to have legislation requirements and public support as an incentive to adopt pro-environmental measures in their business operations.

The study is based on data obtained from seven countries. The results revealed a problem of the macro-environmental influence on hotels’ potential to implement environmentally sustainable approaches and procedures throughout the industry.