21,697 research outputs found
Elasticities for U.S. Wheat Food Use by Class
We conceptualize wheat for food use as an input into flour production and derive demand functions to quantify price responsiveness and economic substitutability across wheat classes. Cost, price, and substitution elasticities are estimated for hard red winter, hard red spring, soft red wheat, soft white winter, and durum wheat. In general, hard red winter and spring wheat varieties are much more responsive to their own price than are soft wheat varieties and durum wheat. Morishima elasticities indicate that hard red winter and hard red spring wheat are economic substitutes for milling purposes.elasticities, wheat by class, economic substitution, Monte Carlo, Food Consumption/Nutrition/Food Safety, C15, C30, Q11,
Bostonia. Volume 28
Founded in 1900, Bostonia magazine is Boston University's main alumni publication, which covers alumni and student life, as well as university activities, events, and programs
Spectral atlas of dwarf novae in outburst
Up to now, only a very small number of dwarf novae have been studied during
their outburst state (~30 per cent in the Northern hemisphere). In this paper
we present the first comprehensive atlas of outburst spectra of dwarf novae. We
study possible correlations between the emission and absorption lines seen in
the spectra and some fundamental parameters of the binaries. We find that out
of the 48 spectra presented, 12 systems apart from IP Peg show strong HeII in
emission: SS Aur, HL CMa, TU Crt, EM Cyg, SS Cyg, EX Dra, U Gem, HX Peg, GK
Per, KT Per, V893 Sco, IY UMa, and 7 others less prominently: FO And, V542 Cyg,
BI Ori, TY Psc, VZ Pyx, ER UMa, and SS UMi. We conclude that these systems are
good targets for finding spiral structure in their accretion discs during
outburst if models of Smak (2001) and Ogilvie (2001) are correct. This is
confirmed by the fact that hints of spiral asymmetries have already been found
in the discs of SS Cyg, EX Dra and U Gem.Comment: 16 pages, 14 figures. To be published in MNRA
WHOLESALE DEMAND FOR USDA QUALITY GRADED BOXED BEEF AND EFFECTS OF SEASONALITY
This study quantifies the differential in demand between different USDA quality grades of beef and the interaction between quality graded beef and other meats. We provide estimates of meat retailer own and cross price demand elasticities for USDA Choice and Select boxed beef. Results indicate that meat retailers have more elastic demand for lower quality graded beef. Seasonal analysis indicates demand for both beef quality grades becomes highly price inelastic during the summer "cook-out" months. The two beef quality grades are strong substitutes during the fall and winter. However, Select beef is not a substitute for Choice beef in the spring and summer.beef, chicken, demand, pork, quality, USDA Choice, USDA Select, wholesale, Demand and Price Analysis,
VALUING CHARACTERISTICS OF TRANSFERABLE DEER HUNTING PERMITS IN KANSAS
The novel use of transferable deer hunting permits in Kansas has altered property rights to a traditionally government rationed good, providing the institutional framework and incentives for competitive market activity. This paper investigates how attributes of the permit itself, spatial determinants, and the socioeconomic characteristics of the consumer-hunter influence market price. Findings provide valuable insight into factors that are important to Kansas interest groups, its economy, and to structuring transferable permits for wildlife programs.Resource /Energy Economics and Policy,
SPATIAL HEDONIC ANALYSIS OF VETERINARIAN INCOME
We investigate a hedonic model for veterinarian income using survey data from the American Veterinarian Medical Association. Diagnostic testing indicates the presence of spatial autoregression in the hedonic income model, which is accounted for by incorporating a spatial component into the regression model. The results provide unique empirical findings about determinants of veterinarian income and spatial patterns, as well as insight useful for governments and academic institutions planning programs and the veterinarian industry.Teaching/Communication/Extension/Profession,
Impacts of Gluten Imports on U.S. Food Wheat Use
Gluten imports, wheat food demand, U.S., International Relations/Trade,
Projected rotational velocities of WD1614+136 and WD1353+409 - implications for the rate of galactic Type Ia supernovae
The white dwarf stars WD1614+136 and WD1353+409 are not sufficiently massive
to have formed through single star evolution. However, observations to date
have not yet found any evidence for binarity. It has therefore been suggested
that these stars are the result of a merger. In this paper we place an upper
limit of approximately 50kms on the projected rotational velocities of both
stars. This suggests that, if these stars are the results of a merger,
efficient angular momentum loss with accompanying mass loss must have occurred.
If the same process occurs following the merging of more massive white dwarf
stars, the predicted rate of Type Ia supernovae due to merging white dwarfs may
have been greatly over-estimated. Further observations to determine binarity in
WD1614+136 and WD1353+409 are therefore encouraged.Comment: 3 pages. 1 figur
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