Results 101 to 110 of about 4,053,455 (295)
The fibre broadband housing premium across three US States
Regional Studies, Regional ScienceThis paper meshes 1.7 million housing transactions across three US states (Iowa, Minnesota and Texas) between 2015 and 2021 with data on broadband infrastructure to evaluate the impact of fibre broadband availability on home prices.
Brian Whitacre
doaj +1 more source
Improved Inference for the Instrumental Variables Estimator [PDF]
It is now well known that standard asymptotic inference techniques for instrumental variable estimation perform very poorly in the presence of weak instruments.
Richard Startz +2 more
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Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source
Association between Gut Microbiota and Biological Aging: A Two-Sample Mendelian Randomization Study
MicroorganismsRecent observational studies revealed an association between gut microbiota and aging, but whether gut microbiota are causally associated with the aging process remains unknown.
Chenglin Ye +5 more
doaj +1 more source
A review of instrumental variables estimation in the applied health sciences [PDF]
Health scientists often use observational data to estimate treatment effects when controlled experiments are not feasible. A limitation of observational research is non-random selection of subjects into different treatments, potentially leading to ...
Paul Grootendorst
core
FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
Instrumental variables estimation with flexible distribution [PDF]
Instrumental variables are often associated with low estimator precision. This paper explores efficiency gains which might be achievable using moment conditions which are nonlinear in the disturbances and are based on flexible parametric families for ...
Christian Hansen +2 more
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Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Journal of Causal Inference, 2016 An instrumental variable can be used to test the causal null hypothesis that an exposure has no causal effect on the outcome, by assessing the association between the instrumental variable and the outcome.
Burgess Stephen, Small Dylan S.
doaj +1 more source
Cross-sectional Averaging and Instrumental Variable Estimation with Many Weak Instruments [PDF]
Instrumental variable estimation is central to econometric analysis and has justifiably been receiving considerable and consistent attention in the literature in the past.
George Kapetanios +1 more
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