1,449 research outputs found
STRATEGIC ALLIANCES IN THE LIVESTOCK SECTOR: INDUSTRY PERSPECTIVES AND OPINIONS
Livestock Production/Industries,
Cosmological Parameters from the Comparison of the 2MASS Gravity Field with Peculiar Velocity Surveys
We compare the peculiar velocity field within 65 Mpc predicted from
2MASS photometry and public redshift data to three independent peculiar
velocity surveys based on type Ia supernovae, surface brightness fluctuations
in ellipticals, and Tully-Fisher distances to spirals. The three peculiar
velocity samples are each in good agreement with the predicted velocities and
produce consistent results for \beta_{K}=\Omega\sbr{m}^{0.6}/b_{K}. Taken
together the best fit . We explore the effects of
morphology on the determination of by splitting the 2MASS sample into
E+S0 and S+Irr density fields and find both samples are equally good tracers of
the underlying dark matter distribution, but that early-types are more
clustered by a relative factor b\sbr{E}/b\sbr{S} \sim 1.6. The density
fluctuations of 2MASS galaxies in Mpc spheres in the local volume is
found to be \sigma\sbr{8,K} = 0.9. From this result and our value of
, we find \sigma_8 (\Omega\sbr{m}/0.3)^{0.6} = 0.91\pm0.12. This
is in excellent agreement with results from the IRAS redshift surveys, as well
as other cosmological probes. Combining the 2MASS and IRAS peculiar velocity
results yields \sigma_8 (\Omega\sbr{m}^/0.3)^{0.6} = 0.85\pm0.05.Comment: 11 pages, ApJ accepte
FINANCIAL PERFORMANCE IN MEAT AND POULTRY MANUFACTURING AND WHOLESALING: AN HISTORICAL PERSPECTIVE
The financial performance of meat and poultry manufacturing and wholesaling firms is examined for the period from 1970 to 1986. Measures of liquidity, solvency, profitability, cash generation, and efficiency reported in the Robert Morris Associates Annual Statement Studies are used to examine relative performance across the different industries. The results suggest a similar performance in the wholesaling and manufacturing industries across the period in terms of liquidity. Profitability levels are similar for meat and poultry firms, although the poultry firms show a higher level of variability across the period. It appears that poultry firms leveraged themselves relatively more than did meat firms during the period. In terms of cash generation and efficiency the meat manufacturing industry performs slightly better than the other industries.Agricultural Finance,
LIVESTOCK FUTURES MARKETS AND RATIONAL PRICE FORMATION: EVIDENCE FOR LIVE CATTLE AND LIVE HOGS
The efficiency of livestock futures markets continues to receive attention, particularly with regard to their forward pricing or forecasting ability. The purpose of this paper is to present a more general theory that encompasses the forward pricing concept. It is argued that futures contract prices for competitively produced nonstorable commodities, such as live cattle and live hogs, follow a rational formation process. Futures contract prices reflect expected market conditions when contracts are sufficiently close to the delivery month that the supply of the underlying commodity cannot be changed. However, prior to the period when future supplies are relatively fixed, futures contract prices should adjust to reflect the competitive equilibrium, where output price equals average costs of production. Presented evidence suggests that live cattle and live hog futures markets support the rational price formation hypothesis: prices for distant contracts reflect average costs of feeding. Implications for risk management strategies are considered.Demand and Price Analysis, Livestock Production/Industries,
Maximum-Likelihood Comparisons of Tully-Fisher and Redshift Data. II. Results from an Expanded Sample
This is the second in a series of papers in which we compare Tully-Fisher
(TF) data from the Mark III Catalog with predicted peculiar velocities based on
the IRAS galaxy redshift survey and gravitational instability theory, using a
rigorous maximum likelihood method called VELMOD. In Paper I (Willick et al.
1997b), we we applied the method to a km/sec, 838-galaxy TF
sample and found where
and is the linear biasing parameter for IRAS galaxies. In this paper we
increase the redshift limit to km/sec, thereby enlarging the
sample to 1876 galaxies. The expanded sample now includes the W91PP and CF
subsamples of the Mark III catalog, in addition to the A82 and MAT subsamples
already considered in Paper I.
We implement VELMOD using both the forward and inverse forms of the TF
relation, and allow for a more general form of the quadrupole velocity residual
detected in Paper I. We find (1-sigma error) at 300
km/sec smoothing of the IRAS-predicted velocity field. The fit residuals are
spatially incoherent for indicating that the IRAS plus
quadrupole velocity field is a good fit to the TF data. If we eliminate the
quadrupole we obtain a worse fit, but a similar value for of Changing the IRAS smoothing scale to 500 km/sec has almost no effect on
the best We find evidence for a density-dependence of the
small-scale velocity dispersion,
km/sec.Comment: Latex, 37 pages, 15 figures, uses modified apjpt4.st
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