scholarly journals An Endogenous Migration Cost in a Tiebout Economy: A Tieboutian Search

1996 ◽  
Vol 27 (1) ◽  
pp. 27-36 ◽  
Author(s):  
Ryushi HOMMA
Keyword(s):  
Migration Cost

An Optimal Way of VM Placement Strategy in Cloud Computing Platform Using ABCS Algorithm

2021 ◽  
Vol 12 (3) ◽  
pp. 16-38
Author(s):  
Pushpa R. ◽  
M. Siddappa
Keyword(s):  
Cloud Computing ◽  
Power Consumption ◽  
Virtual Machines ◽  
Fitness Function ◽  
Vm Placement ◽  
Migration Strategy ◽  
Swarm Optimization ◽  
Bee Colony ◽  
Migration Cost ◽  
Chicken Swarm Optimization

In this paper, VM replacement strategy is developed using the optimization algorithm, namely artificial bee chicken swarm optimization (ABCSO), in cloud computing model. The ABCSO algorithm is the integration of the artificial bee colony (ABC) in chicken swarm optimization (CSO). This method employed VM placement based on the requirement of the VM for the completion of the particular task using the service provider. Initially, the cloud system is designed, and the proposed ABCSO-based VM placement approach is employed for handling the factors, such as load, CPU usage, memory, and power by moving the virtual machines optimally. The best VM migration strategy is determined using the fitness function by considering the factors, like migration cost, load, and power consumption. The proposed ABCSO method achieved a minimal load of 0.1688, minimal power consumption of 0.0419, and minimal migration cost of 0.0567, respectively.

scholarly journals Remittance Behaviors of International Migrants in Comparative Perspective: The Case in Fujian, China

2018 ◽  
Vol 53 (3) ◽  
pp. 930-955
Author(s):  
Qian Song ◽  
Zai Liang
Keyword(s):  
Community Development ◽  
Case Studies ◽  
Single Case ◽  
Cultural Practice ◽  
Public Infrastructure ◽  
Public Project ◽  
Cultural Contexts ◽  
Economic Disparity ◽  
Migration Cost ◽  
International Migrants

Taking an origin-destination linked approach, we compare remittance behaviors of Fuzhou-US and Mingxi-Europe migrants. We find that different mechanisms predict propensity to remit and the amount of remittances. Altruistic remittance is more consistent with the remitting propensities of migrants from the poorer Mingxi region but is also reflected in the remittance amount of migrants from Fuzhou, where there is higher economic disparity and where people who fail to consume lavishly are socially sanctioned. When emigration is risky, circuitous, and expensive, we find, migration cost drives the remittance amount. In Fuzhou, where cultural practice is developed to confer honor on public project donors, more households are motivated to contribute to public infrastructure. These results provide economic, political, and cultural contexts for remittance theories, identify contexts that promote community development, and help reconcile debates derived from single case studies in various settings.

Energy Efficient Resource Allocation During Initial Mapping of Virtual Machines to Servers in Cloud Datacenters

2018 ◽  
Vol 9 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Nimisha Patel ◽  
Hiren Patel
Keyword(s):  
Energy Efficient ◽  
Virtual Machines ◽  
Recent Time ◽  
Mapping Technique ◽  
Migration Cost ◽  
Efficient Resource ◽  
Consolidation Phase ◽  
Series Of Experiments ◽  
Two Phases ◽  
Energy Efficient Resource Allocation

Energy consumption has been identified as one of the key research challenges during recent time in Cloud computing. Proper placement of Virtual Machines (VMs) on servers may address the issue. The process of placing VMs on servers can be divided into two phases viz. (a) Mapping of VMs on servers during the phase and (b) subsequent VM selection, migration and placement during consolidation phase. If the initial mapping is not efficient, subsequent operations may lead to unnecessary VM migrations, which in turn, may result into increase in migration cost and increase in SLA violations. In this research, the authors aim to improve the resource utilization to address these issues by keeping (i) the number of live server as minimal as possible for achieving energy efficiency, and (ii) the live server, as busy as possible by efficiently utilizing them. The authors conducted series of experiments with existing default technique and various other approaches. The results of our experiments make us conclude that there is a scope of improvement in the default mapping technique currently being used in CloudSim.

scholarly journals Migration and Urbanization in Post-Apartheid South Africa

2019 ◽  
Vol 34 (2) ◽  
pp. 509-532 ◽  
Author(s):  
Jan David Bakker ◽  
Christopher Parsons ◽  
Ferdinand Rauch
Keyword(s):  
South Africa ◽  
South African ◽  
Rural Areas ◽  
Natural Experiment ◽  
Rapid Urbanization ◽  
South Africans ◽  
Black South Africans ◽  
Migration Cost ◽  
Process Of Urbanization ◽  
Positive Population

Abstract Although Africa has experienced rapid urbanization in recent decades, little is known about the process of urbanization across the continent. This paper exploits a natural experiment, the abolition of South African pass laws, to explore how exogenous population shocks affect the spatial distribution of economic activity. Under apartheid, black South Africans were severely restricted in their choice of location, and many were forced to live in homelands. Following the abolition of apartheid they were free to migrate. Given a migration cost in distance, a town nearer to the homelands will receive a larger inflow of people than a more distant town following the removal of mobility restrictions. Drawing upon this exogenous variation, this study examines the effect of migration on urbanization in South Africa. While it is found that on average there is no endogenous adjustment of population location to a positive population shock, there is heterogeneity in the results. Cities that start off larger do grow endogenously in the wake of a migration shock, while rural areas that start off small do not respond in the same way. This heterogeneity indicates that population shocks lead to an increase in urban relative to rural populations. Overall, the evidence suggests that exogenous migration shocks can foster urbanization in the medium run.

Sign in / Sign up

Export Citation Format

Share Document