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Impact of cancer diagnosis on life expectancy by area-level socioeconomic groups in New South Wales, Australia: a population-based study
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作者 Md Mijanur Rahman Michael David +5 位作者 David Goldsbury Karen Canfell Kou Kou Paramita Dasgupta Peter Baade Xue Qin Yu 《Cancer Biology & Medicine》 SCIE CAS CSCD 2024年第8期692-702,共11页
Objective: Improvement in cancer survival over recent decades has not been accompanied by a narrowing of socioeconomic disparities. This study aimed to quantify the loss of life expectancy(LOLE) resulting from a cance... Objective: Improvement in cancer survival over recent decades has not been accompanied by a narrowing of socioeconomic disparities. This study aimed to quantify the loss of life expectancy(LOLE) resulting from a cancer diagnosis and examine disparities in LOLE based on area-level socioeconomic status(SES).Methods: Data were collected for all people between 50 and 89 years of age who were diagnosed with cancer, registered in the NSW Cancer Registry between 2001 and 2019, and underwent mortality follow-up evaluations until December 2020. Flexible parametric survival models were fitted to estimate the LOLE by gender and area-level SES for 12 common cancers.Results: Of 422,680 people with cancer, 24% and 18% lived in the most and least disadvantaged areas, respectively. Patients from the most disadvantaged areas had a significantly greater average LOLE than patients from the least disadvantaged areas for cancers with high survival rates, including prostate [2.9 years(95% CI: 2.5±3.2 years) vs. 1.6 years(95% CI: 1.3±1.9 years)] and breast cancer [1.6 years(95% CI: 1.4±1.8 years) vs. 1.2 years(95% CI: 1.0±1.4 years)]. The highest average LOLE occurred in males residing in the most disadvantaged areas with pancreatic [16.5 years(95% CI: 16.1±16.8 years) vs. 16.2 years(95% CI: 15.7±16.7 years)] and liver cancer [15.5 years(95% CI: 15.0±16.0 years) vs. 14.7 years(95% CI: 14.0±15.5 years)]. Females residing in the least disadvantaged areas with thyroid cancer [0.9 years(95% CI: 0.4±1.4 years) vs. 0.6 years(95% CI: 0.2±1.0 years)] or melanoma [0.9 years(95% CI: 0.8±1.1 years) vs. 0.7 years(95% CI: 0.5±0.8 years)] had the lowest average LOLE.Conclusions: Patients from the most disadvantaged areas had the highest LOLE with SES-based differences greatest for patients diagnosed with cancer at an early stage or cancers with higher survival rates, suggesting the need to prioritise early detection and reduce treatment-related barriers and survivorship challenges to improve life expectancy. 展开更多
关键词 Cancer diagnosis life expectancy loss of life expectancy area-level socioeconomic status flexible parametric model
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Parental Educational Expectations,Academic Pressure,and Adolescent Mental Health:An Empirical Study Based on CEPS Survey Data 被引量:1
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作者 Tao Xu Fangqiang Zuo Kai Zheng 《International Journal of Mental Health Promotion》 2024年第2期93-103,共11页
Background:This study aimed to investigate the relationship between parental educational expectations and adolescent mental health problems,with academic pressure as a moderating variable.Methods:This study was based ... Background:This study aimed to investigate the relationship between parental educational expectations and adolescent mental health problems,with academic pressure as a moderating variable.Methods:This study was based on the baseline data of the China Education Panel Survey,which was collected within one school year during 2013–2014.It included 19,958 samples from seventh and ninth graders,who ranged from 11 to 18 years old.After removing missing values and conducting relevant data processing,the effective sample size for analysis was 16344.The OLS(Ordinary Least Squares)multiple linear regression analysis was used to examine the relationship between parental educational expectations,academic pressure,and adolescents’mental health problems.In addition,we established an interaction term between parents’educational expectations and academic pressure to investigate the moderating effect of academic stress.Results:The study found that adolescents whose parents had high educational expectations reported less mental health problems.(β=−0.195;p<0.001).Additionally,adolescents who had high academic pressure reported more mental health problems.(β=0.649;p<0.001).Furthermore,the study found that academic pressure had a significant moderating effect on the relationship between parental educational expectations and adolescents’mental health problems(β=0.082;p<0.001).Conclusion:Parental educational expectations had a close relationship with adolescents’mental health problems,and academic pressure moderated this relationship.For those adolescents with high levels of academic pressure,the association between high parental educational expectations and mental health problems became stronger.On the contrary,for those adolescents with low levels of academic pressure,the association between high parental educational expectations and mental health problems became weaker.These findings shed new light on how parental educational expectations affected adolescent mental health problems and had significant implications for their healthy development. 展开更多
关键词 Parental educational expectations academic pressure adolescent mental health problems
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Kinematic calibration under the expectation maximization framework for exoskeletal inertial motion capture system
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作者 QIN Weiwei GUO Wenxin +2 位作者 HU Chen LIU Gang SONG Tainian 《Journal of Systems Engineering and Electronics》 SCIE CSCD 2024年第3期769-779,共11页
This study presents a kinematic calibration method for exoskeletal inertial motion capture (EI-MoCap) system with considering the random colored noise such as gyroscopic drift.In this method, the geometric parameters ... This study presents a kinematic calibration method for exoskeletal inertial motion capture (EI-MoCap) system with considering the random colored noise such as gyroscopic drift.In this method, the geometric parameters are calibrated by the traditional calibration method at first. Then, in order to calibrate the parameters affected by the random colored noise, the expectation maximization (EM) algorithm is introduced. Through the use of geometric parameters calibrated by the traditional calibration method, the iterations under the EM framework are decreased and the efficiency of the proposed method on embedded system is improved. The performance of the proposed kinematic calibration method is compared to the traditional calibration method. Furthermore, the feasibility of the proposed method is verified on the EI-MoCap system. The simulation and experiment demonstrate that the motion capture precision is significantly improved by 16.79%and 7.16%respectively in comparison to the traditional calibration method. 展开更多
关键词 human motion capture kinematic calibration EXOSKELETON gyroscopic drift expectation maximization(EM)
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Gambling to public health in ageing populations: a life expectancy evaluation perspective
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作者 Stanley Chi-on Shiu 《Global Health Journal》 2024年第4期206-212,共7页
Objective:Gambling is a complex topic in relation to health systems.It is always unclear how to strike a balance between the gambling economy and the impact of gambling on public health or social wellbeing at any age.... Objective:Gambling is a complex topic in relation to health systems.It is always unclear how to strike a balance between the gambling economy and the impact of gambling on public health or social wellbeing at any age.There are limited studies considering the association between determinants of gambling and the life expectancy of the ageing population in a country.From an evaluation perspective,this article aims to demonstrate the correlation between life expectancy and gambling and public health systems.Methods:The approach of analysis has two parts.One is the influence of gambling prevalence in populations on life expectancy among old adults.Another is the association between the effect of changes in legal gambling provisions within public health systems and life expectancy among old adults.Healthy adjusted life expectancy at age 60 from the World Health Organization and gross gambling yield were used.ANOVA was performed with SPSS.Results:The population groups with HALE at age 60 of 15 years or over are likely more active in gambling than the population groups with smaller HALE at age 60 of 14 years or less.On the other hand,the influence of a health policy may be sidelined when it is implemented for older adult populations because the resource distribution magnitude or number of strategical techniques may not be the same for younger adult populations.The study here is marked as a good practical start,and there is room for further research with big data analysis on additional gambling variables against other life expectancy variables,quality of life variables or public health system variables.Conclusion:Associations between the determinants of gambling and the life expectancy of the ageing population in a country have not yet been identified.Continuous measurements of policy implementation and effectiveness and assessments of health equity,while gambling policies worldwide continue to change,have not yet been performed.Researchers and policy makers should understand the importance of holistic integration of the gambling economy and policy within a public health and social paradigm with the help of big data insights to achieve sustainability in their cities and health equity in their communities. 展开更多
关键词 Ageing GAMBLING Public health Health systems Health policy Life expectancy MEASUREMENTS
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Exact controllability of rational expectations model with multiplicative noise and input delay
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作者 Wenjing Wang Juanjuan Xu +1 位作者 Huanshui Zhang Minyue Fu 《Journal of Automation and Intelligence》 2024年第1期19-25,共7页
This paper considers the rational expectations model with multiplicative noise and input delay,where the system dynamics rely on the conditional expectations of future states.The main contribution is to obtain a suffi... This paper considers the rational expectations model with multiplicative noise and input delay,where the system dynamics rely on the conditional expectations of future states.The main contribution is to obtain a sufficient condition for the exact controllability of the rational expectations model.In particular,we derive a sufficient Gramian matrix condition and a rank condition for the delay-free case.The key is the solvability of the backward stochastic difference equations with input delay which is derived from the forward and backward stochastic system. 展开更多
关键词 Rational expectations model Exact controllability Exactly null controllability Multiplicative noise Input delay
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Modeling Expected Failure Considering Repair Time and Degradation: A Rail System Case Study
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作者 Maryam Hamidi Atefe Sedaghat +1 位作者 Amir Gharehgozli Ferenc Szidarovszky 《Journal of Transportation Technologies》 2024年第2期236-254,共19页
The repeated failures of any equipment or systems are modeled as a renewal process. The management needs an assessment of the number of future failures to allocate the resources needed for fast repairs. Based on the i... The repeated failures of any equipment or systems are modeled as a renewal process. The management needs an assessment of the number of future failures to allocate the resources needed for fast repairs. Based on the idea of expectation by conditioning, special Volterra-type integral equations are derived for general types of repairs, considering the length of repair and reduced degradation of the idle object. In addition to minimal repair and failure replacement, partial repairs are also discussed when the repair results in reduction of the number of future failures or decreases the effective age of the object. Numerical integration-based algorithm and simulation study are performed to solve the resulting integral equation. Since the geometry degradation in different dimensions of a rail track and controlling and maintaining defects are of importance, a numerical example using the rail industry data is conducted. Expected number of failures of different failure type modes in rail track is calculated within a two-year interval. Results show that within a two-year period, anticipated occurrences of cross level failures, surface failures, and DPI failures are 2.4, 3.8, and 5.8, respectively. 展开更多
关键词 Renewal Theory expected Number of Failures Partial Repair Minimal Repair
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基于Expect的自动化运维分析与设计
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作者 姜家文 潘祺喆 陈彦锋 《现代计算机》 2024年第13期82-85,共4页
信息安全问题层出不穷,设备国产化要求也越来越高。终端信息统计、软件安装与运行、设备远程开关机等批量终端管理,逐步成为常态化工作。维护模式固定、操作简单,但是终端数量较多的情况下,费时费力且容易出错。以国产麒麟操作系统为例... 信息安全问题层出不穷,设备国产化要求也越来越高。终端信息统计、软件安装与运行、设备远程开关机等批量终端管理,逐步成为常态化工作。维护模式固定、操作简单,但是终端数量较多的情况下,费时费力且容易出错。以国产麒麟操作系统为例,设计了基于Expect的批量终端自动化巡检脚本,展示了终端ip地址、MAC地址、磁盘序列号等自动获取方法,远程终端软件安装与运行,回传合并统计数据等功能,给Linux终端运维人员提供一个新的运维思路。 展开更多
关键词 expect 自动化 运维 信息统计
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Exceeding Expectations
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《ChinAfrica》 2024年第2期16-17,共2页
The Chinese economy continued to rebound and made solid progress in 2023,despite the complex international situation and numerous risks and challenges.The accelerated economic structural transformation and upgrade,cou... The Chinese economy continued to rebound and made solid progress in 2023,despite the complex international situation and numerous risks and challenges.The accelerated economic structural transformation and upgrade,coupled with increasing economic resilience,has resulted in various highlights. 展开更多
关键词 expectATION continued ECONOMIC
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Keeping Commitments,Meeting Expectations
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作者 HANNAH WANJIE RYDER CHEN HUIYI 《ChinAfrica》 2024年第9期38-40,共3页
How well is FOCAC meeting Africa’s aspirations for development?The idea of establishing the Forum on China-Africa Cooperation(FOCAC)in 2000 initially came from African countries,eager to coordinate and manage their r... How well is FOCAC meeting Africa’s aspirations for development?The idea of establishing the Forum on China-Africa Cooperation(FOCAC)in 2000 initially came from African countries,eager to coordinate and manage their relationship with China. 展开更多
关键词 China. expectATION establishing
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Evaluating Logistics Systems in the Context of Mass Customization Based on Goal Expectation
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作者 Yun Li Zengqiang Wang 《Proceedings of Business and Economic Studies》 2024年第6期54-59,共6页
Given the complexity and uncertainty of logistics systems in a mass customization environment,decision-making teams often rely on linguistic phrases rather than quantifiable evaluation indices when selecting an evalua... Given the complexity and uncertainty of logistics systems in a mass customization environment,decision-making teams often rely on linguistic phrases rather than quantifiable evaluation indices when selecting an evaluation system.This paper proposes a logistics system evaluation method based on index goal expectation.First,linguistic phrases are processed through an integration method to derive standardized weight vectors.Next,the decision-making team establishes the expected compliance degree for each alternative,which is processed using an axiomatic design to calculate the final evaluation index for each option.The options are then ranked based on these indices to identify the most appropriate logistics system.Applying this method to a company’s logistics system selection demonstrates its effectiveness and feasibility. 展开更多
关键词 Logistics system Goal expectation Axiomatic design
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New Characteristics of Active Life Expectancy of the Elderly in China 被引量:1
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作者 Ping Gao Han-Dong Li 《Advances in Aging Research》 2016年第1期27-39,共13页
Life expectancy of the elderly is a significant problem in China, and it changes not only the health care, but also the pension. This study used tracking data from the Chinese Urban and Rural Elderly Population Survey... Life expectancy of the elderly is a significant problem in China, and it changes not only the health care, but also the pension. This study used tracking data from the Chinese Urban and Rural Elderly Population Survey to calculate the age-specific Active Life Expectancy (ALE) of the Chinese elderly population aged 60 years and over. For analysis, this population was divided into different sub-populations according to gender, census register and region. The main conclusions of our study are as follows: 1) The quality of life for elderly males may be greater than that for elderly females;2) There were significant differences in Active Life Expectancy (ALE) and Inactive Life Expectancy (ILE) between urban and rural elderly;3) The differences in ALE between the eastern, central and western regions of China were not significant;and 4) The increased remaining life expectancy of the elderly was mainly attributed to the extended ALE in the lower age group and the expanded ILE in the higher age group. This study expands the knowledge of Chinese elderly’s life expectancy in different health status. 展开更多
关键词 AGING Remaining Life expectancy Active Life expectancy (ALE) Inactive Life expectancy (ILE) Multistate Life Table
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A Study on consumers' continuing to use online group-buying platforms: The impact of price performance expectations 被引量:1
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作者 Yi- Wen Fan Mei-Hsia Chiang +1 位作者 Jhih-Yuan Wang Eric T. G Wang 《Chinese Business Review》 2010年第12期44-52,共9页
In this study, we aim to understand the characteristics of online group-buying consumers and to investigate salient factors which influence the continuance intention of online group-buying platforms (OGBP) to bridge... In this study, we aim to understand the characteristics of online group-buying consumers and to investigate salient factors which influence the continuance intention of online group-buying platforms (OGBP) to bridge this knowledge gap. An expectation-confirmation model of information systems (IS) continuance is adapted to construct a research model in online group-buying contexts. A total of 289 complete and valid responses were collected. Our findings contribute to academics and practitioners in two ways: Firstly, our respondents show that they are young (93% of the respondents' ages range between 19 and 28 years old), female (88% of the respondents), and thrifty (82% of the respondents' transaction amounts are below US$16). Secondly, based on our results, price performance expectations have a direct impact on confirmation. In addition, in contrast to the IS continuance model (Bhattacherjee, 2001), the effect of perceived usefulness on satisfaction is not supported. Thus, in online group-buying settings, confirmation is the key antecedent of satisfaction. Satisfaction and perceived usefulness are significantly associated with OGBP continuance intention. Consequently, in addition to offering a wide assortment of merchandise and a convenient online shopping experience to enhance customers' perceived usefulness of OGBP, OGBP managers should aim low-price marketing strategies at this female, young, thrifty and price-sensitive segment to transcend consumers' price expectations and attract consumers' continued intention to visit OGBP. 展开更多
关键词 online group-buying platforms expectation-confirmation model of IS continuance expectation-confirmation theory technology acceptance model price performance expectations
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Prospects Expectation for Development of Oil Olive Industry Development in China from the Domestic and Foreign Olive Oil Market 被引量:2
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作者 张正武 王兆山 张建国 《Agricultural Science & Technology》 CAS 2017年第8期1541-1547,共7页
Over the past two years, China's olive Planting area was a bumper harvest year , extra virgin olive oil production has increased at rate of 30% an annual, the government, enterprises and farmers had should be present... Over the past two years, China's olive Planting area was a bumper harvest year , extra virgin olive oil production has increased at rate of 30% an annual, the government, enterprises and farmers had should be presented to the satisfaction of all the situation. However, a large number of farmer has listed to be bought of their fresh fruit , it was presented of 'queuing for salphenomenon, fruit can not be bought and pressed in time, farmer's enthusiasm was hurt and olive oil quality was reduced. In this regard, we had a comprehensive investigation and analysis of the current problems, combined with foreign research results, to researched the domestic and foreign olive oil market, has found our country disadvantages of in oil olive industry development and the existence question, and has carried on the forecast to our country oil olive industry development. Indicated that there is a lot of demand for olive oil consumer In China, and vigorously support at all levels of government, key factors restricting the healthy development of the industry had being resolved, speeding up the development of policies, technologies, talents,markets. The development prospect of olive industry is very broad. 展开更多
关键词 Olive oil Market analysis expectATION
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Impact of Cardiovascular Disease Deaths on Life Expectancy in Chinese Population 被引量:14
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作者 FAN Jie LI Guo Qi +8 位作者 LIU Jing WANG Wei WANG Miao QI Yue XIE Wu Xiang LIU Jun ZHAO Fan LI Yan ZHAO Dong 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2014年第3期162-168,共7页
Objective We aimed to analyze the impact of cardiovascular disease (CVD) deaths on life expectancy (LE) in Chinese population and estimate the percentage reduction in CVD mortality needed to increase LE by 1 year ... Objective We aimed to analyze the impact of cardiovascular disease (CVD) deaths on life expectancy (LE) in Chinese population and estimate the percentage reduction in CVD mortality needed to increase LE by 1 year from the current level, a national target of health improvement. Methods We used life tables, cause-elimination life tables, and age decomposition of LE with corrected mortality data from the National Disease Surveillance System in 2010. Results LE at birth of Chinese people was 73.24 years in 2010. Women had a longer LE than men, and urban population had a longer LE than rural population. CVD deaths resulted in a 4.79-year LE loss and premature deaths in people aged 25 to 64 years were responsible for a substantial part of LE loss from CVD. Death from ischemic heart disease and cerebrovascular diseases accounted for 69.2% of LE loss from CVD deaths and death from cerebrovascular diseases was the largest contributor. In rural men, 51.1% LE loss from CVD deaths was caused by cerebrovascular diseases. If there were no changes in mortality rates for all other diseases, a 27.4% reduction in CVD mortality would increase LE by i year in Chinese population. Conclusion There is a considerable impact of CVD deaths on LE. A 1-year LE increase in the future requires at least a 27.4% reduction in CVD mortality from the current level. Targeting the rural population and tackling cerebrovascular diseases are important for reaching the national goal of health improvement. 展开更多
关键词 Life expectancy Cardiovascular disease Age decomposition of life expectancy
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Children's expectancy beliefs and subjective task values through two years of school-based program and associated links to physical education enjoyment and physical activity 被引量:2
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作者 Arto Gr?stén 《Journal of Sport and Health Science》 SCIE 2016年第4期500-508,共9页
Purpose:The present study examined the patterns of children's expectancy beliefs and subjective task values through the Physical Activity as Civil Skill Program and associated links to physical education enjoyment a... Purpose:The present study examined the patterns of children's expectancy beliefs and subjective task values through the Physical Activity as Civil Skill Program and associated links to physical education enjoyment and total physical activity.Methods:The sample comprised 401 children aged 9–13 years from 3 small towns located in North-East Finland.All children received school-based activities across 2-year program from Grades 5 to 7.The present data were collected using questionnaires across 3 measurement phases during 2012–2014.Results:The levels of expectancy beliefs and subjective task values indicated to be relatively high and the development was stable through the program,especially in terms of expectancy beliefs,attainment value,and cost.In contrast,interest value and utility value decreased over the particular period of time.Boys believed they are physically more competent when compared to other students and valued physical education classes more important than girls.In addition,the higher the physical activity level the children reported,the higher the physical education enjoyment they perceived.Conclusion:The current program including actions to increase physical activity through manipulation of psychological and physical school environment modification indicated to be an effective strategy to prohibit declining levels of children's expectancy beliefs and task values. 展开更多
关键词 Exercise motivation expectancy beliefs expectancy-value theory Physical activity Physical education enjoyment Task values
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利用EXPECT实现路由器自动配置 被引量:1
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作者 陈勇 王宏 《福建电脑》 2010年第6期164-165,共2页
本文提出一种自动配置路由器的方法,介绍在Linux环境下利用EXPECT实现路由设备的自动配置的过程,为实现集中式路由配置提供基础。
关键词 路由 自动配置 expect
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Childbirth expectations and correlates at the final stage of pregnancy in Chinese expectant parents
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作者 Xian Zhang Hong Lu 《International Journal of Nursing Sciences》 2014年第2期151-156,共6页
Purpose:To explore the childbirth expectations of Chinese expectant parents during their transition to parenthood.Methods:A cross-sectional descriptive survey was used through the Chinese version of the Childbirth Exp... Purpose:To explore the childbirth expectations of Chinese expectant parents during their transition to parenthood.Methods:A cross-sectional descriptive survey was used through the Chinese version of the Childbirth Expectations Questionnaire.A total of 240 expectant parents were recruited when they were admitted to the obstetric units waiting for delivery at a large Maternal and Child Health care Center in Beijing,and 210 couples completed the questionnaires,yielding a response rate of 87.5%.Results:The expectant parents had a high level of childbirth expectations towards caregiving environment,spousal support,control and participation and medical support.Conversely,their expectations toward labor pain and their own ability to cope with the pain were relatively low.Expectant fathers’childbirth expectations and preference of partner’s accompany were two significant predictors of expectant mothers’childbirth expectations,explaining 18.9%and 3.3%of the total variance,respectively.While expectant mothers’childbirth expectations was the only significant predictor of expectant fathers’childbirth expectations.Conclusion:This study adds to understanding of the childbirth expectations of Chinese expectant parents.It is suggested that maternity healthcare providers pay close attention to the childbirth expectations of expectant parents,and improve the nursing care service to promote positive childbirth experiences and satisfaction of expectant parents. 展开更多
关键词 Childbirth expectation CHINESE expectant parents Maternity care
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An Analysis of the Expectations Gap:Can it be eliminated?
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作者 旷群 《海外英语》 2011年第1X期286-288,共3页
The "expectations gap" signifies the differences between what the public expects from an audit and what the auditing profession prefers the audit objectives to be.Although the gap exists,it seems that the pr... The "expectations gap" signifies the differences between what the public expects from an audit and what the auditing profession prefers the audit objectives to be.Although the gap exists,it seems that the professions trust that it could be eliminated.In this paper,further evidence was provided to deny the above point by exploring the inevitability nature and the structure of the audit expectation gap.In addition,the author concludes that expectations gap cannot be eliminated;instead,the only thing can be done is to narrow down the gap. 展开更多
关键词 expectATION GAP eliminate NARROW DOWN
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基于Expect数字证书自动签发设计和实现 被引量:1
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作者 张萍 李国庆 +3 位作者 解吉波 于文洋 庞律 李晨辉 《微计算机信息》 2011年第3期197-199,共3页
数字证书是以网络为平台的各种应用的重要安全基础,证书签发是网络应用安全机制的开始和核心工作之一。证书签发的自动化受限于网络服务中间件和安全中间件的部署、衔接和兼容,目前还没有非常完善的证书自动化签发技术框架。本文以Open... 数字证书是以网络为平台的各种应用的重要安全基础,证书签发是网络应用安全机制的开始和核心工作之一。证书签发的自动化受限于网络服务中间件和安全中间件的部署、衔接和兼容,目前还没有非常完善的证书自动化签发技术框架。本文以OpenSSL中的证书自动化签发为例,提出了一种证书自动签发的技术框架,基于Expect语言设计了一个证书自动化签发的原型,进行了验证性相关实验。 展开更多
关键词 数字证书 网络安全 expect TCL
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Optimal consumption-leisure, portfolio and retirement selection based on α-maxmin expected CES utility with ambiguity 被引量:23
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作者 FEI Wei-yin 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2012年第4期435-454,共20页
This article studies optimal consumption-leisure, portfolio and retirement selection of an infinitely lived investor whose preference is formulated by a-maxmin expected CES utility which is to differentiate ambiguity ... This article studies optimal consumption-leisure, portfolio and retirement selection of an infinitely lived investor whose preference is formulated by a-maxmin expected CES utility which is to differentiate ambiguity and ambiguity attitude. Adopting the recursive multiple- priors utility and the technique of backward stochastic differential equations (BSDEs), we transform the (^-maxmin expected CES utility into a classical expected CES utility under a new probability measure related to the degree of an investor's uncertainty. Our model investi- gates the optimal consumption-leisure-work selection, the optimal portfolio selection, and the optimal stopping problem. In this model, the investor is able to adjust her supply of labor flex- ibly above a certain minimum work-hour along with a retirement option. The problem can be analytically solved by using a variational inequality. And the optimal retirement time is given as the first time when her wealth exceeds a certain critical level. The optimal consumption-leisure and portfolio strategies before and after retirement are provided in closed forms. Finally, the distinctions of optimal consumption-leisure, portfolio and critical wealth level under ambiguity from those with no vagueness are discussed. 展开更多
关键词 α-maxmin expected CES utility stochastic control BSDEs optimization of utility variationalinequality optimal consumption-leisure-portfolio and retirement.
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