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| Registros recuperados: 69 | |
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| Chen, Zhuo; Huffman, Wallace E.; Rozelle, Scott. |
| This paper examines the relationship between farm size and productivity in China's agriculture. In developing agriculture where there is a broad range of farm sizes, farm size and productivity or output per unit of land are often found to be inversely related. In China, where average farm size is small and the distribution of farm sizes is relatively compact, farm size and productivity are weakly inversely related. However, when we utilize the egalitarian principle during land allocation in China and use imputed homogenous land area rather than actual land area in the regression, the inverse relationship between farm size and productivity disappears. Hence, the strong inverse relationship that some studies have found are undoubtly due to a number of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
| Ano: 2005 |
URL: http://purl.umn.edu/19565 |
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| Huffman, Wallace E.. |
| Duality theory and static multi-product technology have been applied to analyze aggregate agricultural data by Shumway; Weaver; and McKay, Lawrence and Vlastuin. Several studies (e.g., Antle; Binswanger; and Lopez, 1985a) have indexed technology with a time trend, but no study has attempted to investigate the effects of agricultural research, extension, and education in the multiple-output dual static framework. The objectives of this paper are (i) to assess the bias effects in cash-grain farmers' production decisions caused by public agricultural research, public extension, and farmers' schooling and (ii) to present new estimates of the shadow values of agricultural research, extension, and schooling obtained from the static dual model of agricultural... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 1987 |
URL: http://purl.umn.edu/50024 |
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| Huffman, Wallace E.. |
| New experimental economic methods are described and used to assess consumers' willingness to pay for food products that might be made from new transgenic and intragenic genetically modified (GM) traits. Participants in auctions are randomly chosen adult consumers in major US metropolitan areas and not college students. Food labels are kept simple and focus on key attributes of experimental goods. Diverse private information from the agricultural biotech industry (largely Monsanto and Syngenta), environmental groups (largely Greenpeace and Friends of the Earth) and independent third-party information is used to construct the information treatments. Food labels and information treatments are randomized, which is a deviation from traditional lab methods.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Institutional and Behavioral Economics. |
| Ano: 2010 |
URL: http://purl.umn.edu/93168 |
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| Chen, Adam Zhuo; Huffman, Wallace E.; Rozelle, Scott. |
| This article examines technical efficiency of the Chinese grain sector using the framework of stochastic production frontier. The results reveal that: the marginal products of labor and fertilizer are much smaller than that of land; human capital and farm-level specialization have positive effect on efficiency, land fragmentation is detrimental to efficiency, and elder farmers are as efficient as younger farmers. We also examine the effects of size, mechanization and geographic location. Simulation results show that significant output gains can be obtained by eliminating land fragmentation, improving rural education and promoting specialization and mechanization. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries; Productivity Analysis. |
| Ano: 2003 |
URL: http://purl.umn.edu/22116 |
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| Chen, Yanni; Huffman, Wallace E.. |
| This paper examines women’s and men’s decisions to participate in physical activity and to attain a healthy weight. These outcomes are hypothesized to be related to prices of food, drink and health care services and products, the respondent’s personal characteristics (such as education, reading food labels (signaling a concern for good health), adjusted family income, opportunity cost of time, occupation, marital status, race and ethnicity) and his or her BMI at age 25. These decisions are represented by a trivariate probit model that is fitted to data for adults in the NLSY79 panel with geocodes that have been augmented with local area food, drink and health care prices. Separate analyses are undertaken for men and women due to basic physiological... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Physical activity; Obesity; Food prices; Adults; Developed country; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; I10; D10; J24. |
| Ano: 2009 |
URL: http://purl.umn.edu/49987 |
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| Huffman, Wallace E.. |
| This paper examines the aggregate performance of California agriculture relative to Florida and U.S. agriculture, 1960-1993, the economics of the California raisin grape industry which uses large quantities of migratory labor for the grape harvest, and schools and schooling of farm workers' children in the Parlier area. The major conclusions are that the labor intensity of California (and Florida) agriculture has fallen much less than for the whole U.S., the raisin grape industry of the Central San Joaquin Valley is struggling due to labor availability and prospects of greater foreign competition, and schooling is one of the most promising routes to a better life for the children of adult farm workers. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agriculture; Immigration; Raisin grapes; Farm workers; Schools; Schooling; Small town; California; Labor and Human Capital. |
| Ano: 1999 |
URL: http://purl.umn.edu/18249 |
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| Li, Yang; Huffman, Wallace E.. |
| Abstract: This paper presents a model of location decisions of a multi-period, finite-life, utility maximizing individual and an empirical hazard rate analysis of return migration for Puerto Rican born males who worked in the United States during the 1980s. A potential migrant is assumed to consume leisure, purchased goods, and local amenities and to be retired in his final period of life. We show that it is optimal for him to migrate in the first period or to never migrate. Given that migration occurs, return migration is likely when he retires from the labor market. The reason is local amenities, including nearness to family, friendly culture, pleasant climate, and familiar places, which are complementary with leisure, weigh heavily in consumption... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Migration; Return migration; United States; Puerto Rico; Hazard functions; Local amenities; Labor and Human Capital. |
| Ano: 2000 |
URL: http://purl.umn.edu/18242 |
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| Huffman, Wallace E.. |
| This paper applies production theory to define a new set of inputs for U.S. households for the post-war II period, tests the new inputs to see if they support a complete household-demand system, and reports a new social cost-of-living index. The data support a demand system with nine major input categories and yield plausible price, income, and translating-variable effects. Women's and men's housework are complements, but other input categories are substitutes for women's housework. Some changes in the demand are associated with household technology and demographics. My social cost-of-living index rises at an approximately 1.4 percent per year slower over the post-war era than the implicit price deflator. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2004 |
URL: http://purl.umn.edu/18229 |
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| Abdulai, Awudu; Huffman, Wallace E.. |
| This paper employs a stochastic frontier model to examine profit inefficiency of rice farmers in the Northern Region of Ghana using farm-level survey data. The efficiency index, based on a half-normal distribution of the stochastic error term is related to farm and household characteristics. The empirical results show that farmers' human capital represented by the level of schooling contributes positively to production efficiency, suggesting that investment in farmers' education improves their allocative performance. Access to credit and greater specialization in rice production, are found to be positively related to production efficiency. A farmer's participation in nonfarm employment and being older, however, reduce production efficiency. Farmers... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Africa; Ghana; Production efficiency; Profit frontier; Rice; Crop Production/Industries. |
| Ano: 1998 |
URL: http://purl.umn.edu/18271 |
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| Yee, Jet; Ahearn, Mary Clare; Huffman, Wallace E.. |
| This paper examines the linkages among agricultural total factor productivity, farm size, and farm household participation in the off-farm labor market for the Southeastern states for the period 1960-1996. We find evidence of a simultaneous relationship between productivity and measures of farm structure. The results support the expected relationships between the endogenous variables, namely that productivity and farm size are positively related, farm size and off-farm work participation are negatively related, and off-farm work and productivity are negatively related. We find positive and significant impacts of government policies (investments in public research, extension, and highways) on productivity growth. |
| Tipo: Journal Article |
Palavras-chave: Farm size; Off-farm work; Productivity; Southeast; Structural change; J22; O47; Q15; Q16; Q18. |
| Ano: 2004 |
URL: http://purl.umn.edu/43450 |
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| Registros recuperados: 69 | |
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