Results 131 to 140 of about 28,805 (302)

Consumer Preferences for Craft Beer: The Interplay of Localness and Advertising Language

open access: yesAgribusiness, EarlyView.
ABSTRACT This study explores the influence of the language of the label, origin of production, and origin of brewing ingredients on Croatian consumers' preferences and willingness to pay for organic craft beer. Employing an online survey and a choice experiment among 223 Croatian alcohol consumers, we find that while there's a willingness to pay a ...
Marija Cerjak   +2 more
wiley   +1 more source

Development and validation of a clinical prediction model for hospitalization after emergency department admission in patients with cancer

open access: yesESMO Real World Data and Digital Oncology
Background and purpose: Emergency department (ED) admissions by cancer patients often result in hospitalization and prolonged ED stays, contributing to overcrowding.
Z.L.R. Kaplan   +9 more
doaj   +1 more source

Compact Matrix Expressions for Generalized Wald Tests of Equality of Moment Vectors

open access: yes, 1997
Asymptotic chi-squared test statistics for testing the equality of moment vectors are developed. The test statistics proposed are generalized Wald test statistics that specialize for different settings by inserting an appropriate asymptotic variance ...
Neudecker, Heinz   +3 more
core   +1 more source

Does a Specialized Niche Market Vegetable Processor Enjoy Bargaining Power?

open access: yesAgribusiness, EarlyView.
ABSTRACT Agribusiness companies may achieve competitive advantage through specialization within niche markets. One such niche is the fresh‐cut fruit and vegetable market, which has been steadily growing in Germany. This study examines whether the specialization of a German fresh‐cut producer grants it with market power within this niche market.
Nikolas Bublik   +3 more
wiley   +1 more source

Equivalence Test and Sample Size Determination Based on Odds Ratio in an AB/BA Crossover Study with Binary Outcomes

open access: yesAxioms
Crossover trials are specifically designed to evaluate treatment effects within individual participants through within-subject comparisons. In a standard AB/BA crossover trial, participants are randomly allocated to one of two treatment sequences: either
Shi-Fang Qiu, Xue-Qin Yu, Wai-Yin Poon
doaj   +1 more source

Price Transmission and Leadership in the Global Poultry Market: Results From Parametric and Nonparametric Approaches

open access: yesAgribusiness, EarlyView.
ABSTRACT Brazil and the United States account for more than 40% of global poultry exports, with China and South Korea among their major destination markets. This study examines price transmission and market linkages between Brazil and the United States using monthly poultry export price data from January 1990 to December 2024. It also assesses which of
Khondoker Abdul Mottaleb   +2 more
wiley   +1 more source

Wald tests when restrictions are locally singular

open access: yes
Wald-type tests are convenient because they allow one to test a wide array of linear and nonlinear restrictions from a single unrestricted estimator; we focus on the problem of implementing Wald-type tests for nonlinear restrictions.
Dufour, Jean-Marie   +2 more
core  

Generalized Inverses and Asymptotic Properties of Wald Tests [PDF]

open access: yes, 1986
We consider Wald tests based on consistent estimators of g-inverses of the asymptotic covariance matrix ∑ of a statistic that is n^1/2-asymptotically normal distributed under the null hypothesis.
Vuong, Quang H.
core  

Is There a Market for Organic Milk in Serbia? Insights From Integrated Choice and Latent Variable Model

open access: yesAgribusiness, EarlyView.
ABSTRACT Past growth in the global organic market has been concentrated in high‐income countries, while in middle‐income countries such as Serbia the organic market remains nascent and characterized by a sparse assortment of organic products, high retail premia and limited evidence on consumer preferences and their drivers.
Milan Tatic   +3 more
wiley   +1 more source

Wald-type statistics in heteroscedastic linear models

open access: yes, 2006
In this paper we consider the heteroscedastic linear models and consider Wald-type test statistics for the hypothesis of no factor effects and no interactions. Designs with independent data are considered. The statistics based on the original observations appear to be new.
Akdeniz, Esra, Akritas, Michael G.
openaire   +1 more source

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