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| Registros recuperados: 15 | |
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| Shonkwiler, John Scott; Shaw, W. Douglass. |
| When a sample of recreators is drawn from the general population using a survey, many in the sample will not recreate at a recreation site of interest. This study focuses on nonparticipation in recreation demand modeling and the use of modified count-data models. We clarify the meaning of the single-hurdle Poisson (SHP) model and derive the double-hurdle Poisson (DHP) model. The latter is contrasted with the SHP and we show the DHP is consistent with Johnson and Kotz's zero-modified Poisson model. |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1996 |
URL: http://purl.umn.edu/31027 |
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| Shonkwiler, John Scott; Spreen, Thomas H.. |
| Cyclical fluctuations in prices and production have long characterized the United States hog industry. Recent evidence suggests that the length of the hog cycle has changed. In order to determine whether the change in cycle length is statistically significant, the bootstrap technique is employed to derive confidence intervals for point estimates of the hog cycle. Application of the bootstrap technique to time series models is discussed and empirical results are presented. It is concluded that the hog cycle is undergoing rather complicated changes based on cycle lengths that are calculated to be statistically different from zero. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1986 |
URL: http://purl.umn.edu/29778 |
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| Shonkwiler, John Scott; Hinckley, Suzanne. |
| The appropriate specification of expectations in empirical models of supply response or factor demand is discussed. A general model that admits both extrapolative and rational expectations is formulated and analyzed. The model is used to investigate the decision making process of cattle feeders by incorporating information on futures prices (as representations of rational forecasts) and lagged prices. The findings provide some evidence that cattle feeders form their expectations of future prices using both types of information. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries. |
| Ano: 1985 |
URL: http://purl.umn.edu/32322 |
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| Lea, J.D.; Shonkwiler, John Scott. |
| Concern over the effects of public policies based on misspecified econometric models motivates interest in a procedure to test, diagnose, and improve the specification of models that have been estimated with three-stage least squares. A test of system-wide specification based on Hausman's specification test is employed in a test of the a priori restrictions placed on the parameters of a structural model of the U.S. shrimp market. The null hypothesis of proper specification is rejected. After diagnosis via a comparison of unrestricted and restricted reduced forms and respecification, the null hypothesis cannot be rejected. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1988 |
URL: http://purl.umn.edu/29267 |
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| Shonkwiler, John Scott. |
| A measure for evaluating whether live hog and cattle futures prices represent rational forecasts is presented. It is assumed that the mechanisms which generate rational price forecasts possess the same stochastic properties as the cash prices with which they are associated. Using empirical data, tests are constructed which suggest that for contracts more than two months from maturity the rationality hypothesis is generally rejected. These findings are related to other studies of futures performance and the livestock markets. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries; Marketing. |
| Ano: 1986 |
URL: http://purl.umn.edu/32245 |
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| Ford, Stephen A.; Shonkwiler, John Scott. |
| The effects of managerial ability on farm financial success are analyzed for a 1990 sample of Pennsylvania commercial dairy farms using structural latent variable techniques. Latent factors related to dairy, crop, and financial management are used with herd size to explain farm financial success, measured by net farm income. Results indicate the relative importance of each management variable toward farm financial success. |
| Tipo: Journal Article |
Palavras-chave: Farm Management. |
| Ano: 1994 |
URL: http://purl.umn.edu/31453 |
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| Moss, Charles B.; Shonkwiler, John Scott; Reynolds, John E.. |
| This study determines the effect of government payments on real agricultural asset values using Bayesian vector autoregression. In developing the empirical model, special attention is focused on the informational content of government payments. The results indicate that government payments to farmers have little effect on real asset values in the long run. In the short run, an increase in government payments to farmers may be associated with decline in asset values. |
| Tipo: Journal Article |
Palavras-chave: Agricultural Finance. |
| Ano: 1989 |
URL: http://purl.umn.edu/30097 |
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| Lambert, David K.; Shonkwiler, John Scott. |
| This study attempts to link factors affecting the demand for Bureau of Land Management grazing to perceived changes in permittee welfare over the 1962-92 period. Annual demand for federal forage is found to be sensitive to active preference, beef cow and breeding ewe inventories, and grazing fees and nonfee allotment utilization costs. No evidence is found to support the notion that the demand for grazing has been affected by changes in property rights associated with the federal grazing permit that are not reflected in higher user costs. The total decrease in welfare generated from the permit that are not reflected in higher user costs. The total decrease in welfare generated from the permit to graze public lands has been about 9% per authorized cattle... |
| Tipo: Journal Article |
Palavras-chave: Land Economics/Use. |
| Ano: 1995 |
URL: http://purl.umn.edu/30926 |
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| Registros recuperados: 15 | |
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