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This article investigates the formation of vocational identities of workers in the sector of tourism in the Czech Republic, Greece and Spain. Major challenges and conflicts shape the sector of tourism as a particular labour space. Emerging issues relate to the need for diversifying the offer of services to face seasonality, strategies of entrepreneurial merging and demands for mobility and flexibility of the workforce. For the individual worker, a complex combination of related factors lead to tensions and contradictions, particularly in terms of changes in work organization, flexibility and how vocational identities of workers are shaped. An active policy for social dialogue and the improvement of working conditions seem to be vital in order to avoid flexibility becoming a synonym for precariousness of employment. Furthermore, the promotion of continuing training, greater recognition of formal vocational education and the development of an entrepreneurial culture are key elements that would enhance opportunities to develop a professional career in tourism.

This paper is concerned with the problem of estimating the uncertainty associated with a variable in a finite population. The study of this problem leads to the following conclusion: The classical measure of uncertainty, Shannon's entropy, is not suitable for sampling from finite populations; nevertheless, by using the entropy of order ? = 2, proposed by Havrda and Charvat, one can define an unbiased estimator of the uncertainty associated with the variable in both, the sampling with replacement and the sampling without replacement. This conclusion will be illustrated by an example.

This study aims to understand the underlying social structure of Saudi citizens' interaction and discussion of political topics over the Twitter sphere.

The study employs social network analysis (SNA) measurements such as centrality, eigenvector and graph density on tweets produced in June 2012 by the Saudi community.

The result of SNA reveals relevant differences in the patterns of interconnection among different political topics. It also provides insights into sociological characteristics of modern political issues in Saudi Arabia.

The limitation of this study resides in the lack of large data set for robust analysis.

This is the first study aiming to understand social network dynamics of Twitter targeting the Saudi community.

A global crisis like that caused by the COVID-19 pandemic threatens the survival of any business, but especially of nascent entrepreneurs, due to their vulnerable situation. At this stage of entrepreneurship, information and communication technology capabilities (ICTCs) are critical skills that help entrepreneurs develop their new businesses, fostering economic adaptability to counteract adverse effects. This study advances knowledge of how nascent entrepreneurs react in an environment of global crisis.

The study analyzes a sample of 331 Spanish nascent entrepreneurs to determine the mediating effect of ICTCs on the relationship between the impact of a global crisis (e.g. COVID-19) and the firm’s strategic response.

The results suggest that crises influence adaptation and compensation strategies significantly and that ICTCs exert a total mediating effect on this relationship. The results do not, however, establish a clear relationship between the impact of the COVID-19 crisis and disengagement response, but rather a negative relationship, possibly influenced by government attempts to mitigate the pandemic’s economic consequences (economic aid to maintain the workforce, financial support for business model survival).

The COVID-19 crisis revealed ICT as a key technology for continuing business operations. This study analyzes how ICTCs affect nascent entrepreneurs’ strategies in crisis environments. Our analysis is important because these entrepreneurs have invested resources in their new project. We must determine their strategic response to crisis environments: adaptation, compensation or disengagement. The sample itself, collected during the pandemic, provides unique insights into the impact of the crisis on nascent business decisions.

像2019冠狀病毒病大流行等的全球危機一旦發生，各工商企業能否繼續生存必會受到威脅和影響。這影響以剛開始發展的創業者為甚，因為他們處於脆弱的處境。在這個創業階段，創業者必須擁有資訊與通訊科技能力，才能發展他們的新業務，他們亦需培養經濟上的適應能力，以能抵銷各種不利的影響。本研究擬就剛開始發展的創業者在全球危機發生時應如何應對進行探討，以增進我們對這課題的知識。

本研究分析一個涵蓋331名西班牙新生創業者的樣本，來鑒定資訊與通訊科技能力對全球危機 (如2019冠狀病毒病) 帶來的影響與企業戰略應對之間的關聯所起的中介效應。

研究結果似顯示，危機會顯著地影響企業的適應和賠償策略; 研究結果似乎也顯示，資訊與通訊科技能力會對這關聯 (全球危機所帶來的影響與企業戰略應對之間的關聯) 發揮極大的中介效應。但研究結果並沒有就2019冠狀病毒病危機的影響與脫離反應、建立明確的關聯。反之，研究結果似顯示兩者有一個負相關的關係，這可能是因為政府施行應對方法，以減輕大流行所帶來的經濟後果所致 (這些應對方法包括用以維持勞動力隊伍的經濟援助、和使商業模式能繼續生存的財政支援) 。

2019冠狀病毒病危機揭示了資訊與通訊科技是讓商業運作能繼續進行的關鍵技術。本研究分析資訊與通訊科技能力如何於危機發生時影響新生創業者的策略。我們的分析有其重要性，這是因為這些創業者把資源投入他們的新項目; 我們必須鑒定他們對危機所採取的戰略對策: 適應、賠償和脫離。取自大流行期間有關的樣本本身已能就危機如何影響新生創業者的商務決策、提供獨特的啟示。

The purpose of this paper is to analyze the roles played by organizational learning (OL) and innovation in organizations immersed in the processes of adaptation and strategic fit in dynamic and turbulent environments. The authors analyze whether OL and innovation act as sources of strategic fit, and whether strategic fit positively affects performance.

The authors use data from a survey of a representative sample of 204 respondents from European firms active in high-technology sectors (response rate: 10.42 percent) and structural equation modeling (using the EQS 6.1 program) to undertake a transversal study.

The model confirms that OL and the capacity to innovate positively influence managers’ decisions to adapt their organizations to changes in dynamic environments. The achievement of strategic fit, in turn, improves organizational performance. The authors propose considering the innovation climate as a facilitator of new product and process development, although the innovation climate is not a direct antecedent of fit.

This study is limited by the fact that the analysis is cross-sectional and by the fact that all measures used are based on managers’ perceptions.

Managers should create and support an entrepreneurial culture that stresses continuous learning. They should also foster programs aimed at developing abilities, and promote the development of capabilities that facilitate acceptance of organizational change. Investments in building certain capabilities, such as OL and the capacity to innovate, are strategically justified, especially in turbulent environments.

This study is one of the first to investigate the complex interactions among OL, innovation, strategic fit, and performance. The results improve our understanding of the links between strategic fit and performance.

Despite the sophisticated regulatory regime established in Solvency II, analysts should be able to consider other less complex indicators of the soundness of insurers. The Z-score measure, which has traditionally been used as a proxy of individual risk in the banking sector, may be a useful tool when applied in the insurance sector. However, different methods for calculating this indicator have been proposed in the literature. This paper compares six different Z-score approaches to examine which one best fits insurance companies. The authors use a final dataset of 183 firms (1,382 observations) operating in the Spanish insurance sector during the period 2010–2017.

In the first stage, the authors opt for a root mean squared error (RMSE) criterion to evaluate which of the various mean and SD estimates that are used to compute the Z-score best fits the data. In the second stage, the authors estimate and compare the explanatory power of the six Z-score measures that are considered by using an ordinary least squares (OLS) regression model. Finally, the authors report the results of the baseline equation using the system-GMM estimator developed by Arellano and Bover (1995) and Blundell and Bond (1998) for dynamic panel data models.

The authors find that the best formula for calculating the Z-score of insurance firms is the one that combines the current value of the return on assets (ROA) and capitalization with the SD of the returns calculated over the full sample period.

The main limitation of the research is that it addresses only the Spanish insurance sector, and consequently, the implications of the findings must be framed in this institutional context. However, the authors think that the results could be extrapolated to other countries. Future research should consider including different countries and analyzing the usefulness of aggregated insurer-level Z-scores for macroprudential monitoring.

The Z-score may be a useful early warning indicator for microprudential supervision. In addition to being an indicator of the soundness of insurers simpler than those established in the current regulation, the information provided by this accounting-based measure may help analysts and investors obtain a better understanding of insurance firms' risk factors.

To the best of the authors’ knowledge, this study is the first to examine and compare different approaches to calculating Z-scores in the insurance sector. The few available results on the predictive power of the Z-score are mixed and focus on the banking sector.

雖然在償付能力標準II 內已建立了精密的監管制度，但分析人員應可以考慮以不太複雑的指標，來分析保險公司的穩健程度。Z-分數的估量在銀行業一向作為是個體風險的代理而使用，而Z-分數如應用於保險業，或許會成為有用的工具。唯在文獻裏，學者和研究人員提出了不同的方法來計算這個指標。本文比較六個不同的Z-分數估量方法，以研究出最適合保險公司的方法。我們使用一個最終數據集，包括在2010年至2017年期間在西班牙保險業界營運的183間公司（1382 個觀察）。

在首個階段，我們選擇使用一個方均根誤差(RMSE) 標準來衡量用來計算Z-分數的各個平均值和標準差估量中哪個最適合使用於有關的數據。在第二個階段， 我們以普通最小平方 (OLS) 迴歸模型，去估計並比較被考慮的六個Z-分數估量的解釋力。最後，我們以Arellano與Bover (1995), 以及Blundell與Bond (1998) 為動態追蹤資料模型而發展出來的系統-廣義動差估計推定量，來發表我們基線方程式的結果。

我們發現，計算保險公司Z-分數的最佳公式是把資產收益率及資本總額的現值，和在整個樣本期間計算出來的囘報的標準差結合起來的公式。

我們研究主要的局限為：研究只涉及西班牙的保險業；因此，研究結果的含意，必須在這個體制的背景框架下來闡釋。唯我們相信研究結果或許可外推至其它國家。未來的研究，應考慮納入不同國家作為研究對象，並分析保險公司層面的集成Z-分數的功用，以求達到宏觀審慎監控的目的。

Z-分數或許就微觀審慎監管而言是一個有用的早期警告器。這些以會計為基礎的估量而提供的資訊，除了較現時規例内已建立顯示保險公司穩健程度的各個指標更簡單外，還會幫助分析人員和投資者更了解保險公司的風險因素。

據我們所知，本研究為首個研究，去探討並比較保險業內的Z-分數的計算方法。以前關於Z-分數預測能力的，為數不多並可供取閱的研究結果均不統一；而且，這些研究都聚焦探討銀行業。

Under club president Florentino Pérez, Real Madrid Football Club appeared to utilise the proto-image of the firm (PIF) management approach. Such a strategy embraces the use of branding, values and mid- to long-term planning to generate income. In the case of Real Madrid, the strategy comprised the recruitment of 'Galácticos', which helped it to become the world's number one club in terms of both turnover and profile. Although the strategy delivered success economically, questions remain regarding its sustainability for a sporting organisation.

The purpose of this article is to explore employee age as a moderating factor in the relationship between leader contingent reward behavior (CRB) and work engagement. In doing so, the authors seek to provide a more nuanced understanding of the mediating role of work engagement in the negative effect of leader CRB on turnover intention.

The authors used online surveys among a sample of employees of a retail company in Chile to capture individual perceptions about supervisor CRB, work engagement and turnover intention. To test the authors’ hypotheses, they modeled a first-stage moderated mediation effect using Hayes’ Process macro.

The authors’ results confirm the hypothesis that the negative effect of leader CRB on employee turnover intention is partially mediated by employee work engagement. Interestingly, age was a significant moderator of the mediation effect only for individuals working at headquarters, but not for employees working in stores.

This study expands current knowledge about how the leadership–engagement relationship can predict organizational outcomes, including age as a boundary condition. Following the job demands-resources theory, the authors also prove that conceptualizing leader CRB as a job resource can benefit the integration of leadership and work engagement research. The authors’ findings may help organizational researchers and practitioners acknowledge contextual differences in understanding the combined effects of leadership styles and work engagement.

El propósito de este artículo es explorar la edad del empleado como un factor moderador en la relación entre el comportamiento de recompensa contingente del líder, engagement laboral, e intención de renuncia.

Usamos encuestas en línea, en una muestra de empleados de una empresa de retail en Chile, para capturar las percepciones individuales sobre los comportamientos de recompensa contingente de los supervisores, el engagement laboral, y la intención de renuncia. Para probar nuestras hipótesis modelamos un efecto de mediación moderada de primera-etapa utilizando el macro Process de Hayes.

Los resultados confirman la hipótesis de que las recompensas contingentes del líder están negativamente relacionadas con la intención de renuncia. Este efecto está parcialmente mediado por el nivel de engagement laboral del empleado. Curiosamente, la edad fue un moderador significativo del efecto de mediación sólo para quienes trabajaban en la oficina central, pero no para quienes trabajan en las tiendas.

Nuestro estudio amplía el conocimiento actual sobre cómo la relación liderazgo-compromiso puede predecir resultados organizacionales, incluyendo la edad como condición de borde. Basados en la teoría de las demandas y recursos del trabajo (job demands-resources theory), mostramos que, al conceptualizar el comportamiento de recompensa contingente del líder como un recurso laboral, se puede beneficiar la investigación sobre la integración del liderazgo y el engagement laboral. Nuestros hallazgos pueden beneficiar a investigadores y profesionales de las organizaciones al reconocer las diferencias contextuales en la comprensión del efecto combinado de los estilos de liderazgo y el engagement laboral.

The purpose of this study is to analyze to what extent the strategic actions implemented by the libraries contribute to the containment of the pandemic caused by COVID-19, without compromising the quality of library services for their learning communities.

The research has a mixed methodology: qualitative and quantitative with a technique of documentary review and statistical analysis of data through FanPage Karma software. The documents are public and are part of the teaching programs of the universities, webinars and courses given through accounts and official sites of the Mexican Federal Government, social networks, as well as groups of experts in national and international librarianship.

The research documents and describes the library services that have emerged in libraries since the quarantine and isolation period established by the Ministry of Public Education. It also shows the strategic actions adopted by universities (their advantages and disadvantages) and the digital competencies of the library professionals to meet the information demands of their communities. Additionally, actions implemented to provide a rapid response are discussed so that they can later be improved to have a comprehensive framework for improving quality in the remote library service.

This research contributes value to the field by critically analyzing libraries’ distance services, their innovations and the necessary professional competences required to achieve the institutional academic goals. Additionally, relevant services in the digital context are described.

The purpose of this paper is to report and to regulate the users’ documentary necessities of six Mexican universities involved, in a cooperative manner and during the period of confinement by SARS-CoV-2, through the Document Delivery Service (DDS).

A diagnostic was conducted within the participating institutions that considered the information resources and sources, documents requested and the number of users per institution, which were counted daily for one month. This research used documentary and quantitative methods.

The authors determined that DDS is a reliable service for information supply although it is going to be necessary to adjust legal schemes and interlibrary loan policies to develop a process and to adapt this one to the current information services in the future or “in our new normality”; DDS will have a high impact on the conformation of networks of librarian cooperation.

This study exposed the importance of DDS as a relevant service to provide information on demand by using information and communication technologies, which is a safe way to operate, avoiding exposure to physical contact, ensuring the continuity of research processes in the communities and always monitoring and promoting the copyright.