Results 141 to 150 of about 4,274 (296)
American Journal of Agricultural Economics, EarlyView.Abstract Preferential trade agreements (PTAs) contain various non‐tariff provisions, yet identifying their trade effects remains challenging because these commitments are high‐dimensional and strongly correlated within agreements. We estimated a theory‐consistent structural gravity model with domestic flows for 26 agricultural subsectors over 1988–2017
Dongin Kim, Sandro Steinbach
wiley +1 more source
Gravity-gauge anomaly constraints on the energy-momentum tensor
Journal of High Energy PhysicsWe derive constraints on the four dimensional energy-momentum tensor from gravitational and gauge anomalies. Our work can be considered an extension of Duff’s analysis [1] to include parity-odd terms and explicit symmetry breaking.
Rémy Larue +2 more
doaj +1 more source
Synthetic jets as a flow control device for performance enhancement of vertical axis hydrokinetic turbines: A 3D computational study. [PDF]
Heliyon, 2022 Botero N +3 more
europepmc +1 more source
Farm labor scarcity and its uneven impacts on crop producers in the United States
American Journal of Agricultural Economics, EarlyView.Abstract This study is the first to evaluate the impacts of farm labor scarcity on producers in the United States across different crop production systems. Between 2002 and 2017, we disentangle the effects of labor scarcity from the impacts of rising commodity demand, technological change, and supply of other inputs on labor market outcomes.
Srabashi Ray +4 more
wiley +1 more source
, 2007 Overset mesh를 사용하여 Wing/body와 같은 복잡한 형상을 최적화 하는 새로운 디자인 기법을 개발하였다. Overset mesh 유동해석과 민감도 해석을 위한 다양한 pre-, post processor 기법들을 개발 또는 적용하여 GBOM(Gradient Based Optimization Method)을 기반으로 한 최적화 문제를 수행하였다.
이준석 +3 more
core
Firm turnover under asymmetric information: Tanzania's agro‐dealer sector
American Journal of Agricultural Economics, EarlyView.Abstract We study firm turnover (i.e., entry and exit) and its consumer implications in a market characterized by asymmetric information. Using a three‐round census of agro‐dealers in Tanzania's Morogoro Region, we document annual firm entry and exit rates of 33% and 17%, respectively.
Alix Naugler +3 more
wiley +1 more source
Editorial: Image-based computational approaches for personalized cardiovascular medicine: improving clinical applicability and reliability through medical imaging and experimental data. [PDF]
Front Med Technol, 2023 Pirola S +3 more
europepmc +1 more source
American Journal of Agricultural Economics, EarlyView.Abstract We estimate the long‐run effect of ethanol plant entry on local corn prices using a long‐horizon difference‐in‐differences framework that combines matching with fixed effects while explicitly accounting for treatment intensity and spatial heterogeneity.
Jinho Jung +2 more
wiley +1 more source
Origin and evolution of immersed boundary methods in computational fluid dynamics. [PDF]
Phys Rev Fluids, 2023 Mittal R, Seo JH.
europepmc +1 more source
Are dairy cows replaced too early? Evidence from a structural model and cow‐level data
American Journal of Agricultural Economics, EarlyView.Abstract In past analyses of animal replacement decisions, studies have claimed that dairy farms often replace dairy cows too early to be maximizing profits. I estimate a structural model of asset replacement to determine the motives behind early replacement of dairy cows.
Jared P. Hutchins
wiley +1 more source