|
|
|
| Registros recuperados: 28 | |
|
|
| Nalley, Lawton Lanier; Barkley, Andrew P.. |
| CIMMYT has invested a large and significant amount of public expenditures in wheat breeding research each year for several decades. Estimates of the impact of the wheat breeding program on wheat yield increases provides information to scientists, administrators, and policy makers regarding the efficacy and the rate of return to these investments, providing important information for future funding decisions. Using CIMMYT test plot data from the Yaqui Valley in Mexico from 1990-2002, regression results indicate that the release of modern CIMMYT varieties has contributed approximately 53.77 kg/ha to yield annually. The growing conditions of the experiment fields located in the Yaqui Valley approximate 40% of the developing world's wheat growing conditions.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2007 |
URL: http://purl.umn.edu/9778 |
| |
|
| |
|
| |
|
|
| Nalley, Lawton Lanier; Hudson, Darren. |
| Uniform auctions are commonly used to elicit willingness to pay for new or novel products, product attributes, or non-market goods. However, most auctions or other contingent-valuation techniques do not allow for negative values, despite the fact that many consumers hold negative values for these products or product attributes. We conducted a WTP auction for a new product along with a within-sample WTA second auction allowing for negative responses. We find that failing to allow for negative values significantly inflates willingness to pay estimates and estimates of expected market share. This paper provides a method of incorporating negative values into auctions and willingness to pay elicitation. |
| Tipo: Journal Article |
Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety. |
| Ano: 2009 |
URL: http://purl.umn.edu/99790 |
| |
|
| |
|
| |
|
| |
|
|
| Mahrizal; Nalley, Lawton Lanier; Dixon, Bruce L.; Popp, Jennie S. Hughes. |
| This study sets out to empirically estimate the optimum annual replacement rate and age of cocoa trees in order to maximize the net present value of four common cocoa production systems. The study examines the costs and returns of four common cocoa production systems in Ghana associated with changes in cocoa prices, fertilizer prices, inflation rates, and labor prices. While this study focuses on cocoa, the methodology is applicable to any perennial crop. This study uses empirical yield curves and cost of production data from Ghana to determine when and what percentage of a cocoa orchard should be replaced annually to maximize net present value of revenues over time. Successive versions of the model are solved to determine how input and output price... |
| Tipo: Presentation |
Palavras-chave: Cocoa; Replacement Rate; Net Present Value (NPV); Production Economics; Q01; Q15; Q32. |
| Ano: 2012 |
URL: http://purl.umn.edu/119777 |
| |
|
| |
|
|
| Nalley, Lawton Lanier; Barkley, Andrew P.. |
| This study applies portfolio theory to wheat varietal selection decisions in order to find risk-minimizing outcomes while holding historical yields constant. Potential correlation across wheat cultivar yields increases the complexity of cultivar selection decisions, with gains in one attribute (yield potential) often associated with losses in another (yield stability). Using location-specific empirical data, portfolio theory can provide producers in low-income countries a tool for developing a recommended portfolio of varieties given a desired risk-aversion level. Based on data from Mexico’s Yaqui Valley, results suggest that sowing a portfolio of wheat varieties could have lowered yield variance by 22% to 33% in Northwest Mexico. |
| Tipo: Journal Article |
Palavras-chave: Optimal variety selection; Portfolio analysis; Wheat; Crop Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/93223 |
| |
|
| |
|
| |
|
| |
|
|
| Nalley, Lawton Lanier; Hudson, Darren. |
| Much attention has been paid to alternative fuel sources of late. Ethanol has been a politically popular alternative fuel additive and has recently been pushed to the forefront as a leading replacement to MTBE as an oxygenate. This paper examines the potential markets for ethanol, including biomass ethanol, and discusses the strengths and weaknesses of different oxygenate products. We find that the market for ethanol is tenuous and dependent on government support at this time. Biomass ethanol is more expensive to produce, but does have the advantage of being able to be produced near petroleum refineries, thus reducing transport costs, compared to other sources of ethanol. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/15808 |
| |
|
| |
|
|
| Nalley, Lawton Lanier; Hudson, Darren; Parkhurst, Gregory M.. |
| We used a controlled, uniform 5th-price auction to elicit values for sweet potatoes—both when location is known and unknown, and before and after tasting and providing health information. Significant differences were found between pre- and post-consumption valuations and also found that there were significant effects for location of origin and health information. Interestingly, we also find that location of origin not only affects the level of bids, but also the marginal differences in bids between different potatoes. Overall, however, these results suggest little consistency in bid values across information sets, suggesting that attempting to elicit values of attributes in isolation may lead to erroneous results. |
| Tipo: Journal Article |
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis. |
| Ano: 2006 |
URL: http://purl.umn.edu/7063 |
| |
|
| |
|
| |
|
|
| Popp, Michael P.; Nalley, Lawton Lanier. |
| Arkansas cropping pattern changes at the county level were estimated under various scenarios involving a likely decline in water availability, the development of a biomass market for renewable energy production, and the potential of a widely used carbon offset market. These scenarios are analyzed separately and jointly to determine which of the three scenarios is expected to have the largest impact on net (emissions – sequestration) greenhouse gas (GHG) emissions, renewable fuels feedstock supply, and producer net returns. Land use choices included conventional crops of rice, cotton, soybean, corn, grain sorghum, pasture, and hay. Specialty crops of loblolly pine and switchgrass were modeled for their respective potential to sequester carbon and provide... |
| Tipo: Journal Article |
Palavras-chave: Carbon offsets; Irrigation restriction; Pine; Switchgrass; Farm Management; Resource /Energy Economics and Policy; Q11; Q15; Q16; Q18; Q54. |
| Ano: 2011 |
URL: http://purl.umn.edu/113533 |
| |
|
| |
| Registros recuperados: 28 | |
|
|
|
