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Modeling Labor Supply through Duality and the Slutsky Equation
Ivan Ivanov,Julia Dobreva
International Journal of Economic Sciences and Applied Research , 2010,
Abstract: In the present paper an analysis of the neo-classical optimization model with linear constraints is proposed. By introducing the dual problem it is shown that the solution to the maximization problem is also a solution to the minimization problem. The purely theoreticalmodel proposes a universal equation, similar to the Slutsky equation as derived in the consumption theory. Another application is needed, different from the standard applications of the model found in economic literature. This application is based on the study of thechange in optimality caused by the taxes on labor. The application focuses on how they impact the optimal decision in the choice between leisure and labor through the application of the classification derived on the basis of the Slutsky equation.
Finite Horizon Adaptive Optimal Distributed Power Allocation for Enhanced Cognitive Radio Network in the Presence of Channel Uncertainties  [PDF]
Hao Xu,S. Jagannathan
Computer Science , 2013, DOI: 10.5121/ijcnc.2013.5101
Abstract: In this paper, novel enhanced Cognitive Radio Network is considered by using power control where secondary users are allowed to use wireless resources of the primary users when primary users are deactivated, but also allow secondary users to coexist with primary users while primary users are activated by managing interference caused from secondary users to primary users. Therefore, a novel finite horizon adaptive optimal distributed power allocation scheme is proposed by incorporating the effect of channel uncertainties for enhanced cognitive radio network in the presence of wireless channel uncertainties under two cases. In Case 1, proposed scheme can force the Signal-to-interference (SIR) of the secondary users to converge to a higher target value for increasing network throughput when primary users' are not communicating within finite horizon. Once primary users are activated as in the Case 2, proposed scheme can not only force the SIR of primary users to converge to a higher target SIR, but also force the SIR of secondary users to converge to a lower value for regulating their interference to Pus during finite time period. In order to mitigate the attenuation of SIR due to channel uncertainties the proposed novel finite horizon adaptive optimal distributed power allocation allows the SIR of both primary users' and secondary users' to converge to a desired target SIR while minimizing the energy consumption within finite horizon. Simulation results illustrate that this novel finite horizon adaptive optimal distributed power allocation scheme can converge much faster and cost less energy than others by adapting to the channel variations optimally.
Finite Horizon Adaptive Optimal Distributed Power Allocation for Enhanced Cognitive Radio Network in the Presence of Channel Uncertainties  [PDF]
Hao Xu,S. Jagannathan
International Journal of Computer Networks & Communications , 2013,
Abstract: In this paper, novel enhanced Cognitive Radio Network (CRN) is considered by using power controlwhere secondary users (SUs) are allowed to use wireless resources of the primary users (PUs) when PUsare deactivated, but also allow SUs to coexist with PUs while PUs are activated by managinginterference caused from SUs to PUs. Therefore, a novel finite horizon adaptive optimal distributedpower allocation (FH-AODPA) scheme is proposed by incorporating the effect of channel uncertaintiesfor enhanced CRN in the presence of wireless channel uncertainties under two cases. In Case 1,proposed scheme can force the Signal-to-interference (SIR)of the SUs to converge to a higher targetvalue for increasing network throughput when PU’s are not communicating within finite horizon. OncePUs are activated as in the Case 2, proposed scheme cannot only force the SIR’s of PUs to converge to ahigher target SIR, but also force the SIR’s of SUs to converge to a lower value for regulating theirinterference to Pus during finite time period. In order to mitigate the attenuation of SIR’s due to channeluncertainties the proposed novel FH-AODPA allows the SIR’s of both PUs’ and SUs’ to converge to adesired target SIR while minimizing the energy consumption within finite horizon. Simulation resultsillustrate that this novel FH-AODPA scheme can converge much faster and cost less energy than othersby adapting to the channel variations optimally.
Modified robust finite-horizon filter for discrete-time systems with parameter uncertainties and missing measurements
Modified robust finite-horizon filter for discrete-time systems with parameter uncertainties and missing measurements
 [PDF]

丰璐,邓志红,王博,汪顺亭
- , 2016, DOI: 10.15918/j.jbit1004-0579.201625.0116
Abstract: A robust finite-horizon Kalman filter is designed for linear discrete-time systems subject to norm-bounded uncertainties in the modeling parameters and missing measurements. The missing measurements were described by a binary switching sequence satisfying a conditional probability distribution, the commonest cases in engineering, such that the expectation of the measurements could be utilized during the iteration process. To consider the uncertainties in the system model, an upper-bound for the estimation error covariance was obtained since its real value was unaccessible. Our filter scheme is on the basis of minimizing the obtained upper bound where we refer to the deduction of a classic Kalman filter thus calculation of the derivatives are avoided. Simulations are presented to illustrate the effectiveness of the proposed approach.
A robust finite-horizon Kalman filter is designed for linear discrete-time systems subject to norm-bounded uncertainties in the modeling parameters and missing measurements. The missing measurements were described by a binary switching sequence satisfying a conditional probability distribution, the commonest cases in engineering, such that the expectation of the measurements could be utilized during the iteration process. To consider the uncertainties in the system model, an upper-bound for the estimation error covariance was obtained since its real value was unaccessible. Our filter scheme is on the basis of minimizing the obtained upper bound where we refer to the deduction of a classic Kalman filter thus calculation of the derivatives are avoided. Simulations are presented to illustrate the effectiveness of the proposed approach.
Analysing Power Consumption Of Different Browsers & Identity Management Systems In Mobile Phones  [PDF]
Md. Sadek Ferdous,Ron Poet
International Journal of Distributed and Parallel Systems , 2012,
Abstract: Currently there are many different Identity Management Systems which differ in their architectures as well as use different protocols and serve different purposes and are extensively used by organisations to provide online services. With the remarkable growth of mobile phones in the last few years, both in number and computational power, more and more users are accessing an array of online services using their mobile phones. One of the major concerns for the user of mobile phones is the battery life which is limited and tends to run out quickly. Hence, efficiency in power consumption is a crucial factor for any system when it is accessed using a mobile phone. In this paper, we analyse the efficiency, in terms ofpower consumption, of different browsers in mobile phones and different Identity Management Systems when the mobile phones are used to access online services protected by those Identity Management Systems.
Consumers’ Life Style, Social Identity and Consumption Practices in the Context of Communities of Practice
Ayla Ozhan Dedeoglu,Elif Ustundagli
Business and Economics Research Journal , 2011,
Abstract: Social networks on Internet cannot be regarded as media environments simply; they are discursive environments, where individuals actively commune and construct their identities. The present study represents an attempt to analyze the role of virtual communities of practice play in members’ identity, lifestyle and consumption practices. It is also aimed to find out how member types differ from each other in terms of their commitment to the community, identity, lifestyle and consumption. A survey was conducted with members Bilincli Hippiler Toplulugu, a virtual “community of practice”. The findings reveal that life projects, meanings and practices that are produced and consumed in the context of the researched virtual community are sited in central consumption context of, specifically, core and active members, and have identity construction and authorization functions in members’ life trajectories. These findings poses that although virtual communities did not take attention in Turkey, they get importance in analyzing consumer behavior with its effects on consumption practices.
Societal Marketing and Consumption Identity: A Micro-approach
Tao Su,Fuxin Shan
International Journal of Business and Management , 2009,
Abstract: Because of two defects in the former researches on societal marketing, the paper puts forward a micro-approach in an attempt to review the concept. The micro-foundation of societal marketing is consumption identity, which has direct influence on the product supply of company. We find interaction out about societal marketing with harmonious environment.
News Consumption and Identity: The Case of Adolescent Girls Belonging to a Minority Group  [PDF]
Michal Alon-Tirosh, Dorit Hadar-Shoval, Narmine Marshi-Sakran
Psychology (PSYCH) , 2018, DOI: 10.4236/psych.2018.913156
Abstract: The news is usually generated by members of the majority group and reflects this group’s central narrative. Minority group representation in the news is typically negative and stereotypical, raising questions regarding the news consumption patterns of minority groups. This study investigates this topic by examining news consumption patterns among adolescent girls belonging to the Arab minority in Israel and reveals an inner conflict between components of these girls’ identity. These findings may be used by decision-makers in choosing how to relate to and represent minority groups out of an understanding that they are part of the news consumers.
Least-Mean-Square Receding Horizon Estimation
Bokyu Kwon,Soohee Han
Mathematical Problems in Engineering , 2012, DOI: 10.1155/2012/631759
Abstract: We propose a least-mean-square (LMS) receding horizon (RH) estimator for state estimation. The proposed LMS RH estimator is obtained from the conditional expectation of the estimated state given a finite number of inputs and outputs over the recent finite horizon. Any a priori state information is not required, and existing artificial constraints for easy derivation are not imposed. For a general stochastic discrete-time state space model with both system and measurement noise, the LMS RH estimator is explicitly represented in a closed form. For numerical reliability, the iterative form is presented with forward and backward computations. It is shown through a numerical example that the proposed LMS RH estimator has better robust performance than conventional Kalman estimators when uncertainties exist.
The Mature Imagination and Consumption Strategies: Age & Generation in the Development of a United Kingdom Baby Boomer Identity
Simon Biggs,Chris Phillipson,Rebecca Leach,Anne-Marie Money
International Journal of Ageing and Later Life , 2008,
Abstract: Baby boomers have been credited with an essentially ‘youthful’ approach to themselves, to consumption and to life-style. As they enter midlife and older age they are also faced with the challenges of a mature identity. This paper critically examines the strategies that baby boomers in the United Kingdom use to manage identity as they grow older. Specifically, questions concerning attitudes to cohort labels, personal ageing and other generations are compared to the consumption choices that are made in areas considered to be key to an ageing identity, including: appearance, clothing and bodily maintenance. Boomers identify with succeeding rather than preceding generations. While they claim not to be concerned with bodily ageing as such, their strategies are aimed at maintaining a balance between youthful and mature identities. Priority was given to blurring the boundaries between themselves and younger adult generations. The implications for the relationship between adult ageing and patterns of consumption are explored.
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