Zobrazeno 1 - 10
of 92
pro vyhledávání: '"John M. Marsh"'
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 34, Iss 2, Pp 213-236 (2009)
Conventional wisdom appears to support the thesis that declines in USDA's farmer's share-of-the-retail-dollar (FS) statistics are indicators of low returns to agricultural production. We estimate changes in cattle and hog FS statistics and their rela
Externí odkaz:
https://doaj.org/article/28e44ab832134c7aa48cb9f5169d0369
Autor:
John M. Marsh
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 32, Iss 1, Pp 93-114 (2007)
A systems econometric model of the livestock (beef and pork), poultry (broiler), and corn sectors was estimated to evaluate cross-sector relationships. The equilibrium multipliers and comparative statics indicate unequal cross-effect of market distur
Externí odkaz:
https://doaj.org/article/9f8d643a477e4aa79187e367c0a6b6c4
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 29, Iss 2, Pp 206-227 (2004)
Concerns about the negative effects of U.S. meat and livestock imports on domestic livestock prices have increased interest in country-of origin labeling (COOL) legislation. An equilibrium displacement model is used to estimate short-run and long-run
Externí odkaz:
https://doaj.org/article/8d51292773804c3b8e6f89d83a64edda
Autor:
John M. Marsh, Gary W. Brester
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 29, Iss 1, Pp 45-64 (2004)
An econometric model is used to estimate real wholesale-retail marketing margins for beef and pork. From 1970 to 1998, these margins increased by 27% and 149%, while farm-wholesale margins declined. Wholesale-retail (WR) marketing margin increases ha
Externí odkaz:
https://doaj.org/article/3bbb73e9dd9942d1a632af8101f8d745
Autor:
John M. Marsh
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 26, Iss 2, Pp 463-477 (2001)
Analysis of U.S. feeder steer prices normally includes fed cattle prices and feed grain costs. An expanded econometric model which investigates finance cost, profit risk, hay cost, technology, and Mexican feeder cattle import shares is estimated. Res
Externí odkaz:
https://doaj.org/article/2383bcb4d5154df794befe54966ead22
Autor:
Gary W. Brester, John M. Marsh
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 26, Iss 2, Pp 445-462 (2001)
Real livestock prices and farm-wholesale marketing margins have steadily declined over the past 20 years. Studies examining the causes of these declines have generally failed to account directly for technological change in livestock production and re
Externí odkaz:
https://doaj.org/article/55226b20472f4c1d831f4c04f6740087
Autor:
John M. Marsh
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 24, Iss 2, Pp 313-326 (1999)
Livestock dressed weights have experienced significant trends and volatility which affect wholesale production of red meats. An econometric model was used to estimate the impact of relative prices and technology on cattle and hog average dressed weig
Externí odkaz:
https://doaj.org/article/f8eef36a3cab463895881b298ed13de6
Autor:
John M. Marsh
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 17, Iss 2, Pp 323-334 (1992)
Reduced form price equations were estimated to compare market demand responses from two data sources: U.S. Department of Agriculture (USDA) beef price and price spread data per revisions in 1978 and per revisions in 1990. The latest revisions were ne
Externí odkaz:
https://doaj.org/article/dc5287514cd64cb98dd164ca89263a26
Autor:
Ana Kormos, George Dimopoulos, Ethan Bier, Gregory C. Lanzaro, John M. Marshall, Anthony A. James
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 11 (2023)
The field-testing and eventual adoption of genetically-engineered mosquitoes (GEMs) to control vector-borne pathogen transmission will require them meeting safety criteria specified by regulatory authorities in regions where the technology is being c
Externí odkaz:
https://doaj.org/article/66645d36f8b7428a9aec15b65cc508e0
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
CRISPR-based gene-drives can carry the Cas9 and guide RNA (gRNA) components in a single-linked cassette or in separate elements inserted into different genomic loci. Here the authors genetically transform and compare full versus split drives, with th
Externí odkaz:
https://doaj.org/article/9f9517d5a2a74ecdbe57f2becc9fd24f