Results 81 to 90 of about 248,275 (303)

Can outsourcing pest and disease control help reduce pesticide expenditure? Evidence from rice farmers

open access: yesAgribusiness, EarlyView.
Abstract Outsourcing pest and disease control (PDC) has grown rapidly worldwide, especially in developing countries. Although numerous studies have investigated various advantages of outsourcing PDC, little is known about its impact on pesticide expenditure.
Pengcheng Wang   +2 more
wiley   +1 more source

On the Uniqueness of Wald Sequential Tests

open access: yesThe Annals of Mathematical Statistics, 1956
Under certain mild restrictions on the distributions involved, it is shown that the probabilities of the two types of error uniquely determine the two bounds characterizing the Wald sequential probability ratio test.
openaire   +2 more sources

Unit Root Tests in Three-Regime SETAR Models [PDF]

open access: yes
This paper proposes a simple direct testing procedure to distinguish a linear unit root process from a globally stationary three-regime self-exciting threshold autoregressive process.
George Kapetanios, Yongcheol Shin
core  

Local power of the LR, Wald, score and gradient tests in dispersion models

open access: yes, 2011
We derive asymptotic expansions up to order $n^{-1/2}$ for the nonnull distribution functions of the likelihood ratio, Wald, score and gradient test statistics in the class of dispersion models, under a sequence of Pitman alternatives.
Ferrari, Silvia L. P., Lemonte, Artur J.
core   +1 more source

Foreign labor, peer‐networking and agricultural efficiency in the Italian dairy sector

open access: yesAgribusiness, EarlyView.
Abstract While the presence of immigrants in the agricultural sector is widely acknowledged, the empirical evidence on its economic consequences is lacking, especially from a microeconomic perspective. Using the Farm Accountancy Data Network panel data for Italian dairy farms in the period 2008–2018, the present study investigates the relationship ...
Federico Antonioli   +2 more
wiley   +1 more source

Effect of photodynamic therapy on postoperative pain after pulpectomy in paediatric patients under general dental anaesthesia: A randomised controlled trial

open access: yesPhotodiagnosis and Photodynamic Therapy
Objective: This study aimed to evaluate the analgesic effect of photodynamic therapy (PDT) on post-endodontic pain (PEP) in paediatric patients after pulpectomy under dental general anaesthesia (DGA) compared to conventional treatment.
Meng Zhang   +6 more
doaj   +1 more source

ASSESSING SMALL SAMPLE WAR-GAMING DATASETS [PDF]

open access: yesJournal of Defense Resources Management, 2013
One of the fundamental problems faced by military planners is the assessment of changes to force structure. An example is whether to replace an existing capability with an enhanced system.
W. J. HURLEY, R. N. FARRELL
doaj  

Determinants of local food producer participation in state‐sponsored marketing programs: Evidence from Missouri

open access: yesAgribusiness, EarlyView.
Abstract This study examines producer participation choices considering a variety of potential benefits linked to state‐sponsored marketing programs, using a real choice dataset of farmers in Missouri. Multinomial logit models are employed to predict determinants of farmer enrollment in three tiers of the Missouri Grown local food marketing program ...
Lan Tran, Ye Su, Laura McCann
wiley   +1 more source

Una comparación entre la inferencia basada en las estadísticas de Wald y razón de verosimilitud en los modelos logit y probit vía Monte Carlo

open access: yesRevista Colombiana de Estadística, 2005
Presentamos un estudio que evalúa y compara el desempeño de puebas de hipótesis e intervalos de confianza basados en la estadística de Wald con los basados en la estadística de razón de verosimilitud para los modelos logit y probit.
ARTUR JOSÉ LEMONTE   +1 more
doaj  

How Does Cultural and Colonial Heritage Affect Optimal Branding Strategies? Evidence From the Rice Sector in Senegal

open access: yesAgribusiness, EarlyView.
ABSTRACT Africa's cultural and colonial heritage has profoundly segmented rice markets. Whereas in ancient centers of rice domestication, consumers maintained preferences for local rice consistent with their cultural heritage, preferences have shifted toward imported Asian rice in coastal areas around seaports, due to prior exposure to colonial import ...
Kofi Britwum, Matty Demont
wiley   +1 more source

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