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| Registros recuperados: 11 | |
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| Carter, Colin A.; Green, Richard D.; Pick, Daniel H.. |
| The Armington trade model distinguishes commodities by country of origin and import demand is determined in a separable two-step procedure. The Armington framework has been applied to numerous international agricultural markets with the objective of modelling import demand. The purpose of this paper is to test the Armington assumptions of homotheticity and separability with data from the international wheat market. The empirical results overwhelmingly reject these assumptions. This has important implications for international trade modelling. |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Relations/Trade. |
| Ano: 1988 |
URL: http://purl.umn.edu/51246 |
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| Pope, Rulon D.; Kramer, Randall A.; Green, Richard D.; Gardner, B. Delworth. |
| Previously published empirical models of U.S. farmland prices are reviewed and reestimated including recent data. It is apparent that structural changes have occurred. A simple single equation econometric model with less economic structure appears to forecast better than a simultaneous equation model. Finally, Box-Jenkins forecasts are roughly as good as those based upon a simultaneous equation econometric model, but somewhat inferior to the single equation model. The results suggest that further research may be needed to explain recent movements of farmland prices. |
| Tipo: Journal Article |
Palavras-chave: Land Economics/Use. |
| Ano: 1979 |
URL: http://purl.umn.edu/32436 |
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| Green, Richard D.; Carman, Hoy F.; McManus, Kathleen. |
| Two different methods of incorporating advertising effects into Almost Ideal Demand Systems (AIDS) are presented. Both advertising schemes are designed to allow theoretical restrictions to hold globally rather than at particular sample points. The models are estimated for California figs, prunes, and raisins. Empirical results indicate that generic advertising effects for these three dried fruits are generally weak when compared to price and total expenditure effects. Estimated cross-commodity effects also are relatively small except for the negative effect of raisin advertising on the quantity of prunes demanded. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis; Marketing. |
| Ano: 1991 |
URL: http://purl.umn.edu/32627 |
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| Anderson, Jamie B.; Jolly, Desmond A.; Green, Richard D.. |
| This research uses binomial and multinomial logistic regression models to identify the factors that influence farmers adoption of organic technology. Using a sample of 175 farmers growing fresh-market produce in three California counties, the first model examines farmers choice between conventional-only and organic-only production. The second model compares conventional-only and "dual-method" (combined conventional and organic) production, while the third model employs all three choices in a multinomial model. These results, which indicate that gross sales, direct marketing, number of crops and acres, farmer age, and computer usage are significant determinants, have implications on policies that regulate the organic foods sector. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Production Economics. |
| Ano: 2005 |
URL: http://purl.umn.edu/36319 |
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| Hahn, William F.; Green, Richard D.. |
| A dynamic econometric model relating wholesale meat prices to retail prices and wholesale meat demand is estimated using monthly data on U.S. prices and quantities of beef, pork, and chicken. The hypothesis that meat retailing costs are separable is rejected; that is, the data support joint costs in meat retailing. The hypothesis that there are fixed proportions between wholesale meat inputs and retail meat outputs is accepted. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2000 |
URL: http://purl.umn.edu/30840 |
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| Wetzstein, Michael E.; Green, Richard D.. |
| The method of principal components is used to construct attractiveness indexes for existing and proposed wilderness areas in California. Rankings of areas based on this procedure are compared with those based on size and the subjective attractiveness index developed by the Forest Service. The derived indexes are then used to develop alternative opportunities variables that appear as explanatory variables in outdoor recreation demand functions. Results indicate that substantially better explanatory capacity can be achieved over alternative measures by including a competitive factor in the demand functions. The paper concludes by considering the substitution effects of introducing new wilderness areas into the system. |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1978 |
URL: http://purl.umn.edu/32405 |
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| Blanciforti, Laura Ann; Green, Richard D.; King, Gordon A.. |
| This study analyzes U.S. consumer budget allocations among 11 aggregate commodity groups for the period 1948-78. Also budget allocations among four food groups are analyzed for this same period. Several alternative model specifications are analyzed. Emphasis is given to the Deaton-Muellbauer (1980a) "almost ideal demand system." A dynamic version of their model is developed and quantified. Comparison of the static and dynamic formulations are compared with similar specifications for the "linear expenditure system." The predictive performance of these four models for the 11 commodity groups is tested for the sample period (1948-78) and for the years 1979-81. The purpose of this study was to develop improved methods for analyzing demand relationships for... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Demand and Price Analysis; Institutional and Behavioral Economics. |
| Ano: 1986 |
URL: http://purl.umn.edu/11939 |
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| Green, Richard D.; Martin, Philip L.; Taylor, J. Edward. |
| When welfare reforms were enacted in 1996, a higher than average percentage of residents in the agricultural heartland of California, the San Joaquin Valley, received cash assistance. Average annual unemployment rates during the 1990s ranged from 12% to 20%, and 15% to 20% of residents in major farming counties received cash benefits. This analysis develops and estimates a two-equation cross-sectionally correlated and timewise autoregressive model to test the hypothesis that in agricultural areas, seasonal work, low earnings, and high unemployment, as well as few entry-level jobs that offer wages and benefits equivalent to welfare benefits, promote welfare use and limit the potential of local labor markets to absorb ex-welfare recipients. |
| Tipo: Journal Article |
Palavras-chave: Cross-sectionally correlated and timewise autoregressive model; Farm workers; Immigration; Welfare reform; Public Economics. |
| Ano: 2003 |
URL: http://purl.umn.edu/30715 |
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| Blaylock, James R.; Salathe, Larry E.; Green, Richard D.. |
| The Box-Cox transformation (BCT) has been frequently used as both a flexible functional form and as a decision device to distinguish among alternative model specifications. Most researchers have failed to recognize that the BCT when applied to the dependent variable can compensate for heteroskedasticity. This paper investigates a new procedure which estimates both the BCT parameters and the analytic form of heteroskedasticity. Results from the new procedure are compared to estimates obtained from the traditional method of estimating BCT models. Comparisons indicate that proper specification of the error variance can influence the magnitude of BCT parameters and alter the results of hypothesis testing. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1980 |
URL: http://purl.umn.edu/32394 |
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| Registros recuperados: 11 | |
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