Results 111 to 120 of about 6,177,620 (296)
African Scientific ReportsThis study proposes a group of clusters of families of hybrid polynomial kernels, constructed via convex combinations of Beta polynomial kernel families, extending classical kernel density estimation through a flexible mixing parameter that generates ...
Benson Ade Eniola Afere +2 more
doaj +1 more source
American Journal of Agricultural Economics, EarlyView.Abstract Crop insurance is undoubtedly an extremely valuable element in protecting agricultural businesses, but in many cases standard indemnity‐based products have had very low uptake due to high transaction costs elevating premiums to unaffordable levels.
Amogh Prakasha Kumar +2 more
wiley +1 more source
Scientific AfricanOwing that ensuring true representative samples from a population is dependent on sampling via sample estimators, in this paper, we established the sample maximum likelihood (ML) estimators of the location (μ), scale (σ2) and shape (β) parameters of Log ...
Ajíbólá T. Sóyínká +2 more
doaj +1 more source
On relative efficiency of Quasi-MLE and GMM estimators of covariance structure models [PDF]
Optimal GMM is known to dominate Gaussian QMLE in terms of asymptotic efficiency (Chamberlain, 1984). I derive a new condition under which QMLE is as efficient as GMM for a general class of covariance structure models.
Artem Prokhorov
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Accounting for animal health in efficiency analysis: An application to Swedish dairy farms
American Journal of Agricultural Economics, EarlyView.Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang +3 more
wiley +1 more source
Asymptotic relative Pitman efficiency in group models
The notion of asymptotic efficacy due to Hannan for multivariate statistics in a location problem is reformulated for manifolds. The matrices used in Hannan's definition are reformulated as Riemannian metrics on a manifold and hence are seen not to ...
Tsai, Ming-Tien, Chang, Ted
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American Journal of Agricultural Economics, EarlyView.Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra +3 more
wiley +1 more source
American Journal of Botany, EarlyView.Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely +7 more
wiley +1 more source
Dyonic Kerr–Sen black hole’s resonant scattering: absorption and superradiance
European Physical Journal C: Particles and FieldsWe analytically investigate scalar superradiant scattering in the rotating dyonic Kerr–Sen black hole of Einstein–Maxwell-dilaton–axion theory. Starting from the separable Klein–Gordon equation for a massive neutral scalar field, we work in the low ...
Supakorn Katewongveerachart +1 more
doaj +1 more source
UMYU Scientifica JournalThis study examines the estimation of the scale parameter of the Weibull-Power Function Distribution (WPFD) using both maximum likelihood and Bayesian approaches.
Hauwa Abdulrahman Dangana +3 more
doaj +1 more source