In the realistic world, various individuals have distinct personalities, preferences, and attitudes toward new information and behavior acceptance, called population heterogeneity. It is seldom taken into account and theoretically analyzed in information propagation on a weighted network. Therefore, we divide individuals into fashionable and conservative individuals according to their passion degree and willingness for novel behaviors acceptance. Then, we build two behavior adoption threshold models corresponding to fashionable and conservative individuals on the weighted network to explore the effect of population (...) heterogeneity on information propagation. Next, a partition theory based on edge weight and population heterogeneity is proposed to qualitatively analyze the information propagation mechanism. The theoretical analyses and simulation results show that fashionable individuals promote information propagation and behavior adoption. More importantly, the crossover phenomena of phase transition appear. When the fraction of fashionable individuals is relatively large, the increasing pattern of the final adoption size shows a second-order continuous phase transition. In comparison, the increasing pattern alters to first-order discontinuous phase transition with the decrease of the fraction of fashionable individuals. Moreover, reducing weight distribution heterogeneity promotes information propagation and slightly accelerates the change of the phase transition pattern from the first-order discontinuous to the second-order continuous. Besides, increasing the degree distribution heterogeneity accelerates the change of the phase transition pattern. Finally, our theoretical analyses coincide well with the simulation results. (shrink)

Contextual mobile advertising, with the advantages of high interactivity and immersive experience, is the mainstream trend of future Internet advertising. Current studies have explored the benefits of contextual mobile advertising while lacking the analysis of contextual mobile advertising factors on consumer purchase intentions. This study investigates the mechanisms by which the characteristics of contextual mobile advertising evoke consumers' purchase intentions through advertising attitudes to reveal how extroversion and neuroticism in personal traits moderate the relationship between characteristics of contextual mobile advertising (...) and advertising attitudes. Based on a sample of 543 community residents with mobile shopping experience in China, this study uses structural equation modeling to validate the relationships between the variables and draws conclusions. The findings help advertisers to grasp the important characteristics of contextual mobile advertising, improve consumers' attitudes toward advertising, and enhance purchase intentions. Furthermore, it is possible to expand perceptions of the effectiveness of contextual mobile advertising among consumers with different personality traits. (shrink)

Previous studies have found Forsyth’s Ethical Position Questionnaire (EPQ) to vary between countries, but none has made a systematic evaluation of its psychometric properties across consumers from many countries. Using confirmatory factor analysis and multi-group LISREL analysis, this paper explores the factor structure of the EPQ and the measurement equivalence in five societies: Austria, Britain, Brunei, Hong Kong and USA. The results suggest that the modified scale, measuring idealism and relativism, was applicable in all five societies. Equivalence was found across (...) Britain, Brunei and USA, but the original scale cannot be used validly. (shrink)

《一代直聲百年盡瘁：梁簌溟鄉村建設運動研究》系統梳理了20世紀30年代梁漱溟主持的山東鄉村建設實驗的相關內容，以及不同時期相關實踐者和學者對其鄉村建設實驗進行的各種討論和爭議，試圖全方位挖掘梁漱溟鄉建 思想與實踐的深層學術價值和現實借鑒意義，冀望對今天的農村現代化建設和農村改革，尤其是“三農”問題的解決和優化提供有益的借鑒。.

本書是由崔大華生前撰寫的53篇文章、6篇專著序言以及20篇在三聯書店出版的《讀書》雜誌上隨筆文章彙集而成，凝結了他一生的主要研究成果。綜觀這些文章的內容，其對中國歷史哲學問題的研究有許多真知灼見，在中 國傳統文化道德衰退的今天，其對中國傳統哲學的認識有著很好的借鑒意義。比如，儒道對印度佛教和西方基督教滲入中國的影響，傳統倫理道德對當代人類行為的借鑒，莊子思想對中國文學的發展等。.

Extending the literature on social capital development in the community, this article examines the impact of diverse social interactions on the development of social trust in the workplace, and investigates whether their effects differ in individualistic and collectivistic cultures. Using survey data collected in Canada and China, the authors find that the diversity of one’s social interactions in the community is positively associated with one’s social trust in the workplace, and this relationship is not significantly different between the two cultures. (...) Diversity of one’s social interactions in the workplace is also positively associated with one’s social trust in the workplace, though only in collectivistic cultures. (shrink)

In this study, we examine the empirical association between corporate social responsibility and information asymmetry by investigating their simultaneous and endogenous effects. Employing an extensive U.S. sample, we find an inverse association between CSR engagement and the proxies of information asymmetry after controlling for various firm characteristics. The results hold using 2SLS considering the reverse side of information asymmetry influencing CSR activities. The results also hold after mitigating endogeneity based on the dynamic panel system generalized method of moment. Furthermore, the (...) CSR–information asymmetry relation is amplified in high-risk firms due to managers’ efforts to build a good reputation. Last, we find that CSR engagement is inversely associated with reputational risk measure and lower predicted value of reputational risk is positively associated with lower information asymmetry measures. We interpret these results as supporting the stakeholder theory-based, reputation-building explanation that considers CSR engagement as a vehicle to build and maintain firm reputation thereby enhancing the information environment. (shrink)

Background: The purpose of the current study was to assess the prevalence of sleep disturbances among Chinese people during the COVID-19 pandemic in a large national survey, analyze the relationship between sleep disturbances and mental health status, and explore the influencing factors of the relationship between sleep disturbances and mental health status.Methods: An online survey was accessed by 19,740 people throughout China from February 14 to 21, 2020. The survey included the Depression Anxiety Stress Scale-21 to measure psychological distress and (...) two questions about sleep disturbances. Logistic regression analyses and moderation analysis were performed.Results: Among the 14,505 respondents included in analyses, 3,783 reported sleep disturbances at least 3 days during the past week. Sleep disturbances increased the risk of depression, anxiety, and stress. Gender, age, education, occupation, frequency of attending to epidemic information, nervousness about supplies, receiving provisions of living necessities from the service department during the outbreak, number of correct responses to questions about the epidemic, and isolation/quarantine affected the risk of mental health problems among participants experiencing sleep disturbances. A moderation analysis found that sleep problems were more likely to affect depression, anxiety, and stress scores in men than women during the COVID-19 outbreak.Conclusion: During the COVID-19 outbreak, 26.08% people surveyed experienced sleep disturbances, and the presence of sleep disturbances was positively related to depression, anxiety, and stress, especially among front-line anti-epidemic workers, younger people, people living in isolation/quarantine, people with a college or greater education, and males. (shrink)

Public sphere is an important idea of Habermas in the early research, which guided his latter research, especially in political philosophy field. According to Habermas’ research on public sphere, this paper researches public sphere’s significance in solving the legalization crisis of capitalism and remedying the democratic theory of bourgeoisie. Public sphere idea set up a new model of the democratic theory, deliberative democracy, which is better than democracy of both liberalism and republicanism, and become the most important theme of Habermas (...) in theory and practice. (shrink)

The purpose of this research is to investigate the associations of internal and external support mechanisms with entrepreneurial success, in the context of China's entrepreneurial sector from network theory perspective. The role of digital technology, as a moderator, has also been analyzed. Data has been obtained from 500 entrepreneurs in Jiangsu, a province in China. All hypotheses were tested using structural equation modeling. It has been found that family support, business partner support, community support and external stakeholder relationships have positive (...) effects on entrepreneurial success. It has also been discovered that digital technology adoption strengthens the positive relationship between business partner support and entrepreneurial success. Theoretical and practical implications have been highlighted and future research suggestions have been provided. (shrink)

The issue of management’s relations to the environment has received a significant amount of attention in the literature on corporate social responsibility. Yet the influence of religion on managers’ environmental decisions has until now remained unexamined despite its known importance. In this article, we examine the empirical association between religion—primarily Christianity—and the environmental practices a firm’s management undertakes by investigating their OLS, principal component, simultaneous, and endogenous effects. Employing a large and extensive U.S. sample, we find a negative association between (...) the environmental practices initiated by a firm’s managers and the religiosity of the surrounding community, after controlling for various firm and demographic characteristics. In addition, after mitigating endogeneity with the dynamic system generalized method of moment, we still find an inverse association between religiosity and environmental-friendly decisions of management. We interpret these results as providing some support for the “dominion hypothesis” that claims Christian beliefs discourage environmental concern, but not for the “stewardship hypothesis” that implies that Christianity encourages people to “exercise a responsible stewardship over nature.” Nevertheless, additional analysis shows Christian groups differ significantly in how each influences managers’ environmental decisions. (shrink)

This study aimed to explore the linking mechanisms and conditional processes underlying the relationship between proactive behavior and work-family conflict. Considering the conservation of resources theory, we argue that workplace anxiety mediates the relationship between proactive behavior and work-family conflict. Furthermore, we suggest that immediate supervisor perspective taking and employee emotional intelligence moderate this proposed indirect effect. Two-wave, multisource lagged data were collected from 450 employees of seven domestic Chinese firms to examine the hypothesized moderated mediation model. Our findings support (...) the hypothesis that proactive behavior is positively related to work-family conflict and that workplace anxiety partially mediates this relationship. Immediate supervisor perspective taking moderates the positive association of proactive behavior with workplace anxiety and the indirect relationship between proactive behavior and work-family conflict through workplace anxiety. Emotional intelligence moderates the positive association of proactive behavior with workplace anxiety and the indirect relationship between proactive behavior and work-family conflict through workplace anxiety. The results deepen our theoretical understanding of the consequences of proactivity by demonstrating the positive associations between proactive behavior and work-family conflict. The current study also contributes to the literature by identifying workplace anxiety as a mediating mechanism explaining the relationship between proactivity and work-family conflict. Furthermore, supervisor perspective taking and employee emotional intelligence moderate the above mediating effect. (shrink)

The principle of differential marginality (Casajus in Theory and Decis 71(2):163-–174) for cooperative games is a very appealing property that requires equal productivity differentials to translate into equal payoff differentials. In this paper we apply this property to axiomatic characterizations of values. We show that differential marginality implies additivity and symmetry under certain conditions. Based on this result, we propose new characterizations of the equal division and the equal surplus division values. Finally, we characterize two classes of convex combinations of (...) values, i.e., α\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\alpha$$\end{document}-egalitarian Shapley values and α\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\alpha$$\end{document}-equal surplus division values, by employing differential marginality and establishing the uniqueness of these values on inessential games. (shrink)

This book researches the thought of Jin Yuelin’s epistemology with some notions and methods of contemporary epistemology as the frame of reference. There are two kinds of academical significance in this book, one is that author has accurately comprehended the specific content, inadequacies and contradictions in Jin’ s epistemology, recognized the methods by which Jin Yuelin built his theory of knowledge. The other is that author has known about the differences in research objects and methods between Jin’s theory and contemporary (...) epistemology, and showed the position of Jin’s epistemology in the whole theory of knowledge through the comparative study. On the one hand, the book focuses on the core problem of Jin Yuelin’ epistemology that is how objective knowledge is produced. On the other hand, it is made up of seven chapters in accordance with the structure of Jin’s Theory of Knowledge. The first chapter introduces and comparatively analyzes the comprehensions about the concepts of “knowledge” and “epistemology” between Jin Yuelin and contemporary epistemologists. This chapter supplies the means and methods for following chapters. The second chapter describes Jin’s standpoint and criticism to idealism starting mode, analyzes the objective starting mode that belongs to Jin’s theory and reveals his negative attitude to skepticism. This chapter shows the essential characteristics of the Jin Yuelin’s epistemology. The given is the content of sensation, which is the most basic part of cognitive activity. Moreover Jin Yuelin regards sensation as foundation of knowledge, so the research on theory of the given is separated from the whole study of cognitive activity and treated as the third chapter, which presents Jin’s theory of the given and analyzes the problems of Jin’s theory, then introduces some kinds of theory of the given and theory of perception in the contemporary epistemology, finally comparatively investigates theories of the given between Jin Yuelin and contemporary epistemologists. From the perspective of cognitive activity, the fourth chapter describes the perceptual activity, the activity of knowing, the activity of thinking, means and outlines of reception in Jin’s epistemology, then exposes its contradictions and inadequacies; Induction is the important research object of the Western epistemologists, similarly Jin Yuelin paid more attention to induction and regards the principle of induction as outline of reception. In fact, his standpoint about the principle of induction is vital and creative, so the study of induction separately belongs to the fifth chapter. This chapter presents the Jin’s comprehension about the principle of induction and some answers to the problem of induction in contemporary epistemology, then comparatively analyzes two kinds of the thought about induction. The sixth chapter successively introduces being, nature and fact which all are objects of cognitive activity, then analyzes the problems within them. From the perspective of cognitive results, the last chapter presents the Jin’s standpoint about verification and demonstration of proposition, definition and criteria of truth, then simply describes the point views of contemporary epistemologists about verification and truth of proposition, finally comparatively investigates two kinds of thought. From the vertical, the thesis analyzes the fundamental sections of objective knowledge one by one, such as the given, experience, idea, proposition and truth. From the horizontal, the book focuses on the three main parts of knowledge event, for example, cognitive activity, objects of knowledge and the true proposition treated as knowledge. In a word, the whole book is coherent and organic unity. Through the comparative study, it can be concluded that it is reasonable for Jin Yuelin to enjoy a high academic status, because he is the first philosopher who specializes in the study of epistemology. At the same times, he improves transmission of logic, metaphysics and epistemology from the Western to China. So, his hard work enriches and expands the realm of Chinese philosophy. With the development of the study of epistemology, descriptive content of it, such as, perceptual activity and rational activity, will be regarded as the objects of psychology and cognitive science. Meanwhile, normative content will be retained. For example, analysis of conditions of knowledge, justification for belief claims, comprehension about the proofs of justification, as well as reactions to challenges of skepticism. The latter will continue to be objects of epistemology, of course, they must establish close relationships with psychology and cognitive science. According to this prospect, we should split Jin Yuelin’s theory of knowledge, of which the descriptive content would be allocated to psychology and cognitive science. On the contrary, the normative content would be kept as important resource for deeply studying epistemology. -/- Key words: Knowledge; Contemporary epistemology; Compare; The given; Idea; The principle of induction; Fact. (shrink)

ABSTRACT:We examine whether religion influences company decisions related to corporate community involvement. Employing a large US sample, we show that the CCI initiatives of a company are positively associated with the level of Christian religiosity present in the region within which that company’s headquarters is located. This association persists even after we control for a wide range of firm characteristics and after we subject our results to several econometric tests. These results support our religious morality hypothesis which holds that companies (...) headquartered in regions with higher levels of Christian religiosity will engage in more CCI initiatives. We also find that while Catholic and mainline Protestant religiosity have a positive influence on firms’ CCI initiatives, evangelical Protestant religiosity does not. This supports our differentiated responses hypothesis which holds that institutional differences among religious groups will produce different effects on companies’ CCI. This hypothesis is based on institutional theory. (shrink)

Workforce diversity has received increasing amounts of attention from academics and practitioners alike. In this article, we examine the empirical association between a firm’s workforce diversity and the degree of religiosity of the firm’s management by investigating their unidirectional and endogenous effects. Employing a large and extensive U.S. sample of firms from the years 1991–2010, we find a positive association between a measure of the firm’s commitment to diversity and the religiosity of the firm’s management after controlling for various firm (...) characteristics. In addition, after controlling for endogeneity with the dynamic panel generalized method of moment, we still find a positive association between the firm’s diversity and management’s religiosity. We interpret these results as supportive of the religious motivation explanation that views the firm as a human community and considers religion as a factor that influences managers to more positively embrace diversity. Our results, however, provide no support for the resource-constraint hypothesis that views the firm as a nexus of contracts and sees managers as aiming to maximize shareholder returns under resource constraints that force them to invest only in projects that have a positive net present value and reject diversity initiatives since these do not have a positive NPV. (shrink)

This paper sheds light on the incongruent findings concerning the relationship between family involvement and firms’ corporate social responsibility. While prior studies have mainly taken the perspective of families’ socioemotional wealth preservation, we approach this relationship from the perspective of behavioral agency theory, highlighting the important role played by CEOs’ family memberships. Specifically, we posit that family firms are more likely to invest in CSR when their CEOs are members of the controlling families. Furthermore, we examine how family firms can (...) employ long-term incentives to encourage non-family CEOs to act in the interests of the controlling families to preserve SEW and thus enhancing family firms’ CSR performance. We tested our hypotheses using hand-collected data of family firms included in the S&P 500 index, in the period of 2003–2010. The empirical findings support our hypotheses that family firms with family members as the CEOs have better CSR performance and family firms tend to provide a high level of long-term incentives to non-family than family CEOs. In addition, long-term incentives strongly motivate CEOs to improve firms’ CSR performance, regardless of their family memberships. (shrink)

Short-term traffic flow prediction is an effective means for intelligent transportation system to mitigate traffic congestion. However, traffic flow data with temporal features and periodic characteristics are vulnerable to weather effects, making short-term traffic flow prediction a challenging issue. However, the existing models do not consider the influence of weather changes on traffic flow, leading to poor performance under some extreme conditions. In view of the rich features of traffic data and the characteristic of being vulnerable to external weather conditions, (...) the prediction model based on traffic data has certain limitations, so it is necessary to conduct research studies on traffic flow prediction driven by both the traffic data and weather data. This paper proposes a combined framework of stacked autoencoder and radial basis function neural network to predict traffic flow, which can effectively capture the temporal correlation and periodicity of traffic flow data and disturbance of weather factors. Firstly, SAE is used to process the traffic flow data in multiple time slices to acquire a preliminary prediction. Then, RBF is used to capture the relation between weather disturbance and periodicity of traffic flow so as to gain another prediction. Finally, another RBF is used for the fusion of the above two predictions on decision level, obtaining a reconstructed prediction with higher accuracy. The effectiveness and robustness of the proposed model are verified by experiments. (shrink)

Resumo: A China promove ativamente a prosperidade comum e resolve a contradição do desequilíbrio do desenvolvimento. A capitalização tornou-se o pano de fundo da prosperidade comum. Como entender as mudanças na conotação da prosperidade comum e seus fatores de influência, no contexto da capitalização, tornou-se o tema deste artigo. Acredita-se que o desequilíbrio entre ativos e renda do trabalho e a nova forma de geração de valor são as razões pelas quais a prosperidade comum é difícil de alcançar. A fim (...) de provar a racionalidade dessa conclusão, este artigo examina a questão da capitalização a partir da perspectiva crítica da economia política marxista e toma o caso de capitalização da China como um exemplo para explorar os desafios práticos e os desafios ideológicos enfrentados pela prosperidade comum. Este texto analisa uma nova forma de fetichismo - a essência do fetichismo financeiro introduz o conceito de valor narrativo e revela a distorção e a erosão do valor do fetichismo financeiro sobre os valores das pessoas e o mistério do valor narrativo. (shrink)

This study examines the influence of Christian religion on corporate decisions related to human rights in the United States. Specifically, it examines the empirical association between a company's human rights practices and the Christian religiosity in its local community, as well as individual CEO religiosity in the United States, both of which have not been tested in prior studies. Employing a large sample from the United States, we find a congruent association between the “human rights friendly” practices of a company (...) and the Christian religiosity of the local community. This novel finding is robust to a diverse set of tests. In addition, we find that the association between Christian religiosity in the United States and human rights is more significant in reducing human rights concerns, than it improves human rights strengths. This study interprets these results as upholding the religious morality hypothesis, namely, that companies located in areas with higher religiosity are likely to engage in more human rights-friendly practices, and the United States. Christians consider religion as an influencing factor that encourages managers to embrace human rights. Furthermore, this study finds that individual religious managers tend toward more human rights-friendly practices, supporting our religious manager hypothesis. (shrink)

The Iowa Gambling Task (IGT) simulates uncertain gains and losses in real life situations and thus is a good measure of uncertain decision making. The role of working memory (WM) in IGT performance still remains unclear. The present study aimed to examine the effect of WM on IGT performance. Three groups of participants matched on gender ratio were randomly assigned to no WM load, low WM load, and high WM load conditions. Initially the three groups did not show significant difference (...) in WM capacity. They finished a modified version of IGT and then their implicit learning effect and explicit cognition on IGT were assessed. Results indicated a linear increasing trend of IGT performance among high WM load, low WM load and no WM load groups; participants in the no WM load and low WM load groups revealed implicit learning effect, while participants in the high WM load group did not; all participants showed explicit cognition on IGT to the same level. These results suggested that participants in the high WM load group showed good explicit cognition to IGT but showed poor performance. This pattern is similar to frontal patients. Further studies should be conducted to explore this issue. (shrink)

An interesting phenomenon called “hidden opportunity cost of time effect” was detected in intertemporal choices. The majority of our participants preferred the smaller but sooner (SS) option to the larger but later (LL) option if opportunity cost was explicit. However, a higher proportion of participants preferred the LL to SS option if opportunity cost was hidden. This shift violates the invariance principle and opens a new way to encourage future-oriented behavior. By simply mentioning the ‘obvious’ opportunity cost of alternatives, decision (...) makers can be more informed in prioritizing their long-term goals rather than short-term goals. (shrink)

Fatty acids (FAs) are well known to serve as substrates for reactions that provide cells with membranes and energy. In contrast to these metabolic reactions, the physiological importance of FAs themselves known as free FAs (FFAs) in cells remains obscure. Since accumulation of FFAs in cells is toxic, cells must develop mechanisms to detoxify FFAs. One such mechanism is to sequester free polyunsaturated FAs (PUFAs) into a droplet‐like structure assembled by Fas‐Associated Factor 1 (FAF1), a cytosolic protein. This sequestration limits (...) access of PUFAs to Fe2+, thereby preventing Fe2+‐catalyzed PUFA peroxidation. Consequently, assembly of the FAF1‐FFA complex is critical to protect cells from ferroptosis, a cell death pathway triggered by PUFA peroxidation. The observations that free PUFAs in cytosol are not randomly diffused but rather sequestered into a membraneless complex should open new directions to explore signaling pathways by which FFAs regulate cellular physiology. (shrink)

Histone post-translational modifications play important roles in transcriptional regulation. It is known that multiple histone modifications can act in a combinatorial manner. In this study, we investigated the effects of multiple histone modifications on expression levels of five gene categories in coding regions. The combinatorial patterns of modifications for the five gene categories were also studied in the regions. Our results indicated that the differences in the expression levels between any two gene categories were significant. There were some corresponding differences (...) in multiple histone modification levels among the five gene categories. Multiple histone modifications jointly impacted expression levels of every gene category. Four mutual combinations of histone modifications were found and analyzed. (shrink)

Resumo: A filosofia ecológica agrícola tradicional da China, enraizada em alguns princípios, como a plantação intensiva e a gestão diversificada, minimizou historicamente o impacto ecológico da agricultura. Este estudo explora a sua aplicação no desenvolvimento rural sustentável, fornecendo conhecimentos teóricos e recomendações políticas para equilibrar o crescimento econômico e a conservação ambiental. A tradição ecológica de plantação intensiva, a combinação de utilização e cultivo, e a gestão diversificada transmitida durante milhares de anos têm desempenhado um papel muito bom na redução (...) dos danos da agricultura ao ambiente ecológico. A aplicação desses conceitos ao desenvolvimento sustentável das zonas rurais pode equilibrar o desenvolvimento econômico rural e a proteção ambiental. Ademais, pode regular o uso da terra, manter o equilíbrio ecológico e, finalmente, alcançar uma coexistência harmoniosa. Ao analisar a filosofia ecológica agrícola tradicional da China, este estudo identifica recursos ideológicos valiosos e fornece orientação metodológica para a promoção do desenvolvimento rural sustentável. Propõe estratégias para equilibrar o crescimento econômico com a proteção ambiental, garantindo, assim, o equilíbrio ecológico em longo prazo e a coexistência harmoniosa, nas zonas rurais. (shrink)

As an advanced network calculation mode, cloud computing is becoming more and more popular. However, with the proliferation of large data centers hosting cloud applications, the growth of energy consumption has been explosive. Surveys show that a remarkable part of the large energy consumed in data center results from over-provisioning of the network resource to meet requests during peak demand times. In this paper, we propose a solution to this problem by constructing a dynamic energy-efficient resource management scheme. As a (...) way of saving energy as well as maintaining cloud user’s quality of experience, the scheme presents a multitier cloud architecture by configuring physical machines into two pools: a hot pool and a warm pool. Each PM is configured with a resource search engine that finds an available virtual machine for the request, and a synchronous sleep mechanism is introduced to the warm pool. To analyze the end-to-end performance of the cloud system’s service with the proposed scheme, we establish a hybrid queueing system composed of three stochastic submodels by using a matrix-geometric solution. Accordingly, the average latency of requests and the energy-saving rate of the system are derived. Through numerical results, we show the influence of the synchronous sleep mechanism on the system performance. Moreover, from the perspective of economics, we build a system cost function to study the trade-off between different performance measures. An improved Salp Swarm Algorithm is presented to minimize the system cost and optimize the sleep parameter. (shrink)