Simulated Analysis of Drought's Impact on Different Cow-Calf Production Systems

Five representative firm level stochastic simulation models were constructed using historical production cost, cattle prices, weather information and scientifically collected production data from the Gundmendson Sandhills Laboratory operated by University of Nebraska. The five hundred iterative results indicate inclusion of crop residual grazing as a viable drought mitigation tool.Drought Mitigation, Firm Level, Residual Grazing, Simulation, Stochastic, Livestock Production/Industries,

Utilizing cow-calf producer information to increase profits in retained ownership of beef cattle

Retained ownership has been found to be a profitable endeavor, yet many cow-calf producers choose not to retain their calves. While this paper does not directly explore the reasons producers might have for not retaining ownership, which may include uncertainty, it does explore innovative use of asymmetrical information that might reduce some of the uncertainty. Results are summarized in a regression analysis similar to a Hedonic price model where birth weight, weaning weight, and weaning age are found to be important factors to consider when selecting animals to retain.Asymmetrical Information, Hedonic Price Model, Beef, Retained Ownership, Producer Profitability, Farm Management, Livestock Production/Industries, Production Economics, D82, M31, Q13,

The Mad Cow Disease Trade Ban and Changes in the U.S. and Canadian Cull Cow Markets: A DAG Analysis

A directed a cyclical graph (DAG) methodology was used to discover changes in price relationships among cull cow markets in the U.S. and Canada resulting from the trade ban initiated by the discovery of bovine spongiform encephalopathy (BSE, also called mad cow disease), in a Canadian cow in 2003. Comparison of the pre- and post-ban DAGs supports the hypothesis that large structural changes in the flow of cull cow market information has occurred with significant changes both within and between countries. The typical flow of information from south to north and east to west was disrupted.Livestock Production/Industries,

DEMAND SYSTEM ANALYSIS WITH EMPHASIS ON CONTAINER SIZES OF NON-ALCOHOLIC BEVERAGES.

A demand system that includes five different beverages of various container sizes was estimated using a Censor Corrected Almost Ideal Demand System (CAIDS). Resulting elasticities provide information about intra-product relationships (same product but different sizes), intra-size relationships (different products same container size), and inter-product relationships (different products and different sizes).Demand and Price Analysis,

The U.S. Import of Beef: Substitute or Complement for Domestic Beef Production?

U.S. beef producers have always been concerned that beef imports may depress prices. Consumer groups have held the opposite view. This research addresses this issue by assessing the impact of beef imports on wholesale domestic beef prices. This is done by estimating the flexibilities between domestic beef, choice and select grades, and imported beef at the wholesale level. No statistical evidence is found to support either producer or consumer view. This may be resultant of small import volumes of beef. Beef exports, however, have a statistically measurable effect on domestic beef prices, especially the select grade.beef imports, flexibilities, inverse demand, substitutes, wholesale beef prices, Agribusiness, Demand and Price Analysis, International Relations/Trade,

The Cattle Price Cycle: An Exploration in Simulation

The simulation of commodity prices has been undertaken using a myriad of techniques, with some omitting the cyclical component and others ignoring the presence of inter-temporal relationships expressed as autoregressive errors. This study examines the periodicity of cattle prices and the modeling of the cattle cycle for simulation purposes. The AIC criterion is used to determine lengths of various cycles to be included in a harmonic model, with a chained modeling approach providing the best representation of the cattle cycle.cattle Price cycle, harmonic model, simulation,

Robust quantum parameter estimation: coherent magnetometry with feedback

We describe the formalism for optimally estimating and controlling both the state of a spin ensemble and a scalar magnetic field with information obtained from a continuous quantum limited measurement of the spin precession due to the field. The full quantum parameter estimation model is reduced to a simplified equivalent representation to which classical estimation and control theory is applied. We consider both the tracking of static and fluctuating fields in the transient and steady state regimes. By using feedback control, the field estimation can be made robust to uncertainty about the total spin number