8,539 research outputs found
Microinsurance, Trust and Economic Development: Evidence from a Randomized Natural Field Experiment
We report results from a large randomized natural field experiment conducted in southwestern China in the context of insurance for sows. Our study sheds light on two important questions about microinsurance. First, how does access to formal insurance affect farmers' production decisions? Second, what explains the low takeup rate of formal insurance, despite substantial premium subsidy from the government? We find that providing access to formal insurance significantly increases farmers' tendency to raise sows. We argue that this finding also suggests that farmers are not previously insured efficiently through informal mechanisms. We also provide several pieces of evidence suggesting that trust, or lack thereof, for government-sponsored insurance products is a significant barrier for farmers' willingness to participate in the insurance program.Microinsurance; Trust, Natural Field Experiment
EXPLORING JUNIOR SECONDARY STUDENTS’ KNOWLEDGE-BASED REASONING IN THE CONTEXT OF ENGINEERING DESIGN
Adaptive Communications in Collaborative Perception with Domain Alignment for Autonomous Driving
Collaborative perception among multiple connected and autonomous vehicles can
greatly enhance perceptive capabilities by allowing vehicles to exchange
supplementary information via communications. Despite advances in previous
approaches, challenges still remain due to channel variations and data
heterogeneity among collaborative vehicles. To address these issues, we propose
ACC-DA, a channel-aware collaborative perception framework to dynamically
adjust the communication graph and minimize the average transmission delay
while mitigating the side effects from the data heterogeneity. Our novelties
lie in three aspects. We first design a transmission delay minimization method,
which can construct the communication graph and minimize the transmission delay
according to different channel information state. We then propose an adaptive
data reconstruction mechanism, which can dynamically adjust the rate-distortion
trade-off to enhance perception efficiency. Moreover, it minimizes the temporal
redundancy during data transmissions. Finally, we conceive a domain alignment
scheme to align the data distribution from different vehicles, which can
mitigate the domain gap between different vehicles and improve the performance
of the target task. Comprehensive experiments demonstrate the effectiveness of
our method in comparison to the existing state-of-the-art works.Comment: 6 pages, 6 figure
Magnetic phase diagram of Fe1.1Te1-xSex: A comparative study with the stoichiometric superconducting FeTe1-xSex system
We report a comparative study of the series Fe1.1Te1-xSex and the
stoichiometric FeTe1-xSex to bring out the difference in their magnetic,
superconducting and electronic properties. The Fe1.1Te1-xSex series is found to
be magnetic and its microscopic properties are elucidated through Moessbauer
spectroscopy. The magnetic phase diagram of Fe1.1Te1-xSex is traced out and it
shows the emergence of spin-glass state when the antiferromagnetic state is
destabilized by the Se substitution. The isomer shift and quadrupolar splitting
obtained from the Moessbauer spectroscopy clearly brings out the electronic
differences in these two series.Comment: 6 pages, 9 figure
Microinsurance, Trust and Economic Development: Evidence from a Randomized Natural Field Experiment
We report results from a large randomized natural field experiment conducted in southwestern China in the context of insurance for sows. Our study sheds light on two important questions about microinsurance. First, how does access to formal insurance affect farmers' production decisions? Second, what explains the low takeup rate of formal insurance, despite substantial premium subsidy from the government? We find that providing access to formal insurance significantly increases farmers' tendency to raise sows. We argue that this finding also suggests that farmers are not previously insured efficiently through informal mechanisms. We also provide several pieces of evidence suggesting that trust, or lack thereof, for government-sponsored insurance products is a significant barrier for farmers' willingness to participate in the insurance program.
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