|
|
|
| Registros recuperados: 50 | |
|
|
| Marsh, Thomas L.; Mittelhammer, Ronald C.. |
| An adaptive estimator is proposed to optimally estimate unknown truncation points of the error support space for the general linear model. The adaptive estimator is specified analytically to minimize a risk function based on the squared error loss measure. It is then empirically applied to a generalized maximum entropy estimator of the linear model using bootstrapping, allowing the information set of the model itself to determine the truncation points. Monte Carlo simulations are used to demonstrate performance of the adaptive entropy estimator relative to maximum entropy estimation coupled with alternative truncation rules and to ordinary least squares estimation. A food demand application is included to demonstrate practical implementation of the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2001 |
URL: http://purl.umn.edu/36169 |
| |
|
| |
|
|
| Belasco, Eric J.; Chen, Chen; Ponnaluru, Srinivasa Sasdhar; Galinato, Suzette P.; Marsh, Thomas L.. |
| Protective covers, such as high tunnels, are being used by specialty crop producers to enhance production quality and yields, expand or growing seasons, and protect crops from some extreme elements. While growing in popularity, one barrier to larger utilization includes the uncertainty regarding their practices and benefits. This paper recognizes that high tunnels can be used as a form of risk management and examines the relationship with crop insurance in order to better define optimal risk management strategies. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: High tunnels; Specialty crop insurance; Risk management; Production Economics. |
| Ano: 2011 |
URL: http://purl.umn.edu/103896 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Terry, Justin J.; Marsh, Thomas L.. |
| To quantify price responsiveness and economic substitutability among wheat classes, derived demand functions were specified from a normalized quadratic profit function. Own-price and cross-price elasticities were estimated for hard red winter, hard red spring, soft wheat (combined red and white), and durum wheat. In general, soft wheat varieties were less responsive to their own price than were hard wheat varieties. Cross-price elasticities indicate that hard red winter wheat, hard red spring wheat, and soft wheat varieties are economic substitutes. Cross-price elasticities are different from those previously reported, which can have important policy implications. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Elasticities; Normalized quadratic; Substitution; Crop Production/Industries; Demand and Price Analysis. |
| Ano: 2000 |
URL: http://purl.umn.edu/36457 |
| |
|
| |
|
|
| Tozer, Peter R.; Marsh, Thomas L.; Perevodchikov, Evgeniy V.. |
| Although Australia is the sixth largest producer of beef, with production of 2 million metric tonnes, behind regions such as the USA, Brazil and the EU it is the second largest exporter of beef behind Brazil. Average beef exports from Australia are approximately 65% of the total amount of beef produced or about 1.3 million metric tonnes. For these reasons Australia is particularly vulnerable to diseases that are not endemic to the country and could close or disrupt its export markets for beef. In this study we construct a bioeconomic optimization model of the Australian beef industry that captures production and consumption decisions, domestically and internationally, and the impacts on the beef industry of two potentially catastrophic diseases, foot and... |
| Tipo: Conference Paper or Presentation |
|
| Ano: 2010 |
URL: http://purl.umn.edu/59169 |
| |
|
|
| Marsh, Thomas L.. |
| Wheat for food use is conceptualised as an input into flour production and demand is derived from an industry profit function to quantify price responsiveness and economic substitutability across wheat classes. 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. Substitution elasticities indicate that hard red winter and hard red spring wheat are economic substitutes for milling purposes. |
| Tipo: Article |
Palavras-chave: Elasticities; Like product; Monte Carlo; Wheat by class; Crop Production/Industries; Food Consumption/Nutrition/Food Safety. |
| Ano: 2005 |
URL: http://purl.umn.edu/118503 |
| |
|
| |
|
|
| Schumacher, Sara K.; Marsh, Thomas L.. |
| This study investigated the cost structure of the floriculture industry in the United States. Economies of scale and input elasticities were estimated with a normalized quadratic cost function. Results suggest that economies of scale exist in the floriculture industry. As producers become large and more automated, they have a cost advantage relative to smaller producers who are producing the same output product mix. The existence of economies of scale suggests that average grower size can increase in the future as growers increase in size to take advantage of cost efficiencies. |
| Tipo: Journal Article |
Palavras-chave: Duality; Economies of scale; Floriculture; Nonprice variables; Q12; C31; D20. |
| Ano: 2003 |
URL: http://purl.umn.edu/43145 |
| |
|
| |
|
|
| Perry, William R.; Marsh, Thomas L.; Jones, Rodney D.; Sanderson, M.W.; Sargeant, J.M.; Griffin, D.D.; Smith, R.A.. |
| The objective of this study was to determine the effect of Escherichia coli 0157:H7 on feedlot profits. Fecal samples from 711 feedlot pens in 73 feedlots in Nebraska, Kansas, Oklahoma, and Texas were tested for E. coli 0157:H7. Average daily gain and feed-to-gain ratios were computed for each feedlot pen, and managers from each feedlot provided information on various feedlot management practices. Cattle performance and E. coli 0157:H7 prevalence are both affected by feedlot management practices. The indirect effect of E. coli 0157:H7 on potential feedlot profits was determined by measuring the effects of management practices on E. coli 0157:H7 levels and cattle performance. Management practices that affect cattle performance were identified using... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2004 |
URL: http://purl.umn.edu/36226 |
| |
|
| |
|
| |
|
|
| Lusk, Jayson L.; Featherstone, Allen M.; Marsh, Thomas L.; Abdulkadri, Abdullahi O.. |
| This research examines selected empirical properties of duality relationships. Monte Carlo experiments indicate that Hessian matrices estimated from the normalised unrestricted profit, restricted profit and production functions yield conflicting results in the presence of measurement error and low relative price variability. In particular, small amounts of measurement error in quantity variables can translate into large errors in uncompensated estimates calculated via restricted and unrestricted profit and production functions. These results emphasise the need for high quality data when estimating empirical models in order to accurately determine dual relationships implied by economic theory. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1997 |
URL: http://purl.umn.edu/118069 |
| |
|
|
| Marshall, Maria I.; Marsh, Thomas L.. |
| Trade relations between the United States (U.S) and Mexico are increasingly interrelated and important ever since the ratification of NAFTA in 1994. With the advent of NAFTA, tariffs on many agricultural products were lowered or are in the process of being lowered. Mexico implements a tariff-rate quota for corn which is to be phased out by 2009. This quota is divided among the various Mexican corn importers with "cupos", which are import permits. Import permits are administrative trade barriers that can be defined as any obstacle that appears and disappears as market conditions change. It is widely recognized in the literature that administrative trade barriers create numerous obstacles to the international exchange of agricultural products. In this... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/22242 |
| |
| Registros recuperados: 50 | |
|
|
|
