|
|
|
| Registros recuperados: 37 | |
|
|
| Jansson, Torbjorn. |
| In this article, it is shown how the parameters of a transport model can be estimated in a way that, in contrast to previously used methods, utilizes observations of regional prices as well as of trade costs. The proposed method uses bi-level programming to minimize a weighted least squares criterion under the restriction that the estimated parameters satisfy the Kuhn-Tucker conditions for an optimal solution of the transport model. We use Monte-Carlo simulations to trace out some properties of the estimator and compare it with a traditional calibration method. The analysis shows that the proposed technique estimates prices as well as trade costs more efficiently. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Spatial equilibrium; Transport model; Bi-level programming; Research Methods/ Statistical Methods; C15; F11. |
| Ano: 2005 |
URL: http://purl.umn.edu/18787 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Ibendahl, Gregory A.. |
| Conservation reserve program (CRP) payments amount to several billion dollars annually. Payments are allocated to both remove land from production and to help farmers pay for conservation improvements. However, research examining whether farmers increase their utility with CRPs is limited. This paper uses simulation analysis and certainty equivalents to compare farming income to payments under the CRP. Farming income is a combination of crop production and government payments as specified in the 2002 Farm Bill. This analysis focuses on farms in three different counties in Kentucky. Results indicate that CRPs are good choices for many farmers. |
| Tipo: Journal Article |
Palavras-chave: Certainty equivalents; Conservation; CRP; Government payments; Risk; Simulation; Q15; Q18; Q16; C15. |
| Ano: 2004 |
URL: http://purl.umn.edu/43391 |
| |
|
| |
|
| |
|
| |
|
|
| Richardson, James W.; Outlaw, Joe L.. |
| The provision for producers to update base acres and payment yields in the 2002 farm bill afforded an opportunity to test whether it was feasible to deliver a complex simulation model directly to producers. A Monte Carlo simulation model for assessing the economic impacts of the alternative base and yield options on individual farms was developed and made available to producers via the World Wide Web. The experiences and challenges from this collaborative extension and research effort are described, as well as the issues educators might consider before delivering complex software to a national audience via the Web. |
| Tipo: Journal Article |
Palavras-chave: Base and yield update; 2002 farm bill; Monte Carlo simulation; C15; D83; Q12; Q16. |
| Ano: 2005 |
URL: http://purl.umn.edu/43517 |
| |
|
| |
|
|
| Mallory, Mindy L.; Lence, Sergio H.. |
| This study highlights some problems with using the Johansen cointegration statistics on data containing a negative moving average (NMA) in the error term of the data generating process. We use a Monte Carlo experiment to demonstrate that the asymptotic distribution of the Johansen cointegration statistics is sensitive to the NMA parameters and that using the stated 5% critical values results in severe size distortion. In our experiment, using the asymptotic critical values resulted in empirical size of 76% in the worst case. To date a NMA in the error term was known to cause poor small sample performance of the Johansen cointegration statistics; however our study demonstrates that problems associated with a NMA in the error term do not improve as sample... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Cointegration; Johansen cointegration test; Moving average; Agricultural Finance; Financial Economics; C32; C15. |
| Ano: 2010 |
URL: http://purl.umn.edu/61721 |
| |
|
|
| Koontz, Stephen R.; Hoag, Dana L.; Brethour, John R.; Walker, Jodine L.. |
| The cattle industry batch markets animals in pens. Because of this, animals within any one pen can be both underfed and overfed. Thus, there is a production inefficiency associated with batch marketing. We simulate the value of sorting animals through weight and ultrasound measurements from original pens into smaller alternative marketing groups. Sorting exploits the production inefficiency and enables cattle feeding enterprises to avoid meat quality discounts, capture premiums, more efficiently use feed resources, and increase returns. The value of sorting is between $15 and $25 per head, with declining marginal returns as the number of sort groups increases. |
| Tipo: Journal Article |
Palavras-chave: Cattle feeding; Production efficiency; Simulation; Sorting; Value-based marketing; Ultrasound; Agribusiness; Livestock Production/Industries; Marketing; Research and Development/Tech Change/Emerging Technologies; C15; D21; D23; Q12. |
| Ano: 2008 |
URL: http://purl.umn.edu/47266 |
| |
|
|
| Staus, Alexander. |
| Modeling consumer choice in different areas has lead to an increase use of discrete choice models. Probit or Multinomial Logit Models are often the base of further empirical research of consumer choice. In some of these models the equations to solve have no closed-form expression. They include multi-dimensional integrals which can not be solved analytically. Simulation methods have been developed to approximate a solution for these integrals. This paper describes the Standard Halton sequence and a modification of it, the Shuffled Halton sequence. Both are simulation methods which can reduce computational effort compared to a random sequence. We compare the simulation methods in their coverage of the multi-dimensional area and in their estimation results... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Simulation; Mixed logit; Halton sequence; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; C15; C25. |
| Ano: 2008 |
URL: http://purl.umn.edu/93856 |
| |
|
|
| Witzke, Heinz Peter; Britz, Wolfgang. |
| In the context of a long run agricultural outlook on behalf of the European Environmental Agency a new methodology has been developed to systematically integrate external forecasts into a quite detailed agricultural sector model. External forecasts usually provide estimates for the exogenous variables in modelling work and frequently they are also used for comparisons and potential reassessment of empirical specifications. The innovative characteristic of this study is that expert forecasts have been used to specify parameter changes expressing structural change affecting behavioural functions. The outlook was therefore set up as a simultaneous estimation and forecasting effort which permitted to integrate various, usually contradictory expert forecasts... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agricultural outlook; Forecasting; Modelling; Expert information; Agricultural and Food Policy; C15; C53; Q11; Q19; Q21. |
| Ano: 2005 |
URL: http://purl.umn.edu/24666 |
| |
|
| |
|
| |
| Registros recuperados: 37 | |
|
|
|
