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| Registros recuperados: 45 | |
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| Hwang, Yun Jae; Roe, Brian E.; Teisl, Mario F.. |
| For a representative sample of U.S. consumers, we rank, correlate and explain ratings of concern toward eight food production and processing technologies (antibiotics, pesticides, artificial growth hormones, genetic modification, irradiation, artificial colors/flavors, pasteurization, and preservatives). Concern is highest for pesticides and hormones, followed by concern toward antibiotics, genetic modification and irradiation. We document standard relationships between many demographic, economic and attitude variables and the average concern level. Our main contribution is modeling relative levels of concern across technologies, where we find that key personal and household characteristics that yield little explanatory power for average ratings have... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Consumer/Household Economics. |
| Ano: 2005 |
URL: http://purl.umn.edu/19128 |
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| Wu, Steven Y.; Roe, Brian E.; Sporleder, Thomas L.; Nazaryan, Natalie. |
| Experimental economics is used to compare tournaments (T) and fixed performance contracts (F) when agents have heterogeneous costs. Results suggest that: (1) There is no difference in average pooled effort across contracts, (2) high ability agents exert higher effort than low ability agents under both types of contracts, (3) average pooled earnings are affected by contract type, (4) high ability agents benefit from T whereas low ability agents are harmed by T, and (5) the difference in average pay between high and low ability agents is larger under T. Thus, T implement greater inequality. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2005 |
URL: http://purl.umn.edu/28318 |
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| Wu, Steven Y.; Nazaryan, Natalie; Roe, Brian E.; Sporleder, Thomas L.. |
| Experimental economics is used to compare tournaments (T) and fixed performance contracts (F) when agents have heterogeneous costs. Our primary findings were: (1) There is no statistical difference in average pooled effort (effort by high ability and low ability subjects are pooled together to get an aggregate average) under T and F contracts, (2) on average, effort exerted by high ability agents is considerably higher than effort exerted by low ability agents under both types of contracts, (3) average pooled payoff for the subjects is affected by the type of contract used. Statistical analysis of the results revealed that high ability subjects generally benefit from tournaments whereas low ability agents are harmed by tournaments. Only in the case... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2004 |
URL: http://purl.umn.edu/20103 |
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| Roe, Brian E.; Teisl, Mario F.. |
| We provide evidence of consumption externalities for foods with genetically engineered ingredients. The probability of choosing bread made exclusively from genetically engineered wheat is significantly higher for individuals who perceive normal bread to contain higher levels of genetically engineered content. The magnitude and significance of the consumption externality depends upon the intensity and nature of individual concern about genetically engineered foods and upon prevailing information policies such as explicit warnings about potential health impacts of genetically engineered foods. The estimated preference structures result in an equilibrium level of genetically engineered ingredients that can be sensitive to the initial level of genetically... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 2004 |
URL: http://purl.umn.edu/20243 |
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| Wang, Chia-Hsing; Roe, Brian E.. |
| Post-slaughter quality-based pricing of cattle is increasingly common. This quality, however, is dependent upon unobservable quality characteristics of the feeder cattle used as inputs. Through stochastic simulation we construct incentive compatible quality risk-sharing contracts based upon final grid-quality schedules that facilitate input quality sorting in the feeder cattle market. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Marketing. |
| Ano: 2002 |
URL: http://purl.umn.edu/19755 |
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| Hwang, Yun Jae; Roe, Brian E.; Teisl, Mario F.. |
| When products are differentiated and quality is highly subjective (e.g., fashion or art), novel (e.g., a new feature), or difficult to verify prior to purchase (e.g., credence attributes), consumers may turn to price as a signal of quality. Products containing genetically modified (GM) ingredients meet each of these criteria, i.e., GM ingredients are novel, their presence is difficult to verify, and their impact on subjective quality may be viewed differently across individuals with the same knowledge. We add to the limited empirical literature on consumers' use of price as a quality signal by testing for non-monotonicity of consumer demand in price for GM products using data collected from a nationally representative mail survey featuring several... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2005 |
URL: http://purl.umn.edu/19509 |
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| Chen, Gang; Roberts, Matthew C.; Roe, Brian E.. |
| The central part of pricing agricultural commodity futures options is to find appropriate stochastic process of the underlying assets. The Black's (1976) futures option pricing model laid the foundation for a new era of futures option valuation theory. The geometric Brownian motion assumption girding the Black's model, however, has been regarded as unrealistic in numerous empirical studies. Option pricing models incorporating discrete jumps and stochastic volatility have been studied extensively in the literature. This study tests the performance of major alternative option pricing models and attempts to find the appropriate model for pricing commodity futures options. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Marketing. |
| Ano: 2005 |
URL: http://purl.umn.edu/19183 |
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| Pham, Matthew V.; Roe, Brian E.. |
| Direct regulation of school lunch content seems an intuitive approach for improving the nutrition of many American children. However, little is known about substitution patterns in response to such efforts, particular the likelihood that children and parents will turn to competitive foods outside the control of schools such as packed lunches. To our knowledge, no previous work documents if increasing the healthfulness of school lunches leads children to leave the school lunch line for potentially less nutritious options. To address this paucity of information we estimate the demand for school lunches as a function of calories provided and entrée protein source for a single elementary school. Our results suggest a highly inelastic response to a meal’s... |
| Tipo: Presentation |
Palavras-chave: Food Environment; Nutrition; Revealed Preference; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Marketing. |
| Ano: 2012 |
URL: http://purl.umn.edu/124097 |
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| Chen, Gang; Roberts, Matthew C.; Roe, Brian E.. |
| The costs of corn- and soybean-based feeds compose a substantial proportion of the variable costs faced by both mainstream and emergent confined livestock producers. This research develops a method to provide a joint distribution of prices of corn and soybean meal at a future time. Black's 1976 option model and stochastic volatility jump diffusion (SVJD) model are compared in volatility forecasting performance. In general, SVJD is superior to Black's model, though their performance is both commodity-specific and forecasting horizon specific. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries; Marketing. |
| Ano: 2005 |
URL: http://purl.umn.edu/19048 |
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| Brady, Michael P.; Roe, Brian E.; Wu, Steven Y.. |
| Greater attention has been paid to understanding differences between individual and group decision-making in economics in recent years. While great strides have been made in understanding the relative cognitive ability of each, differences in preferences are less well understood. This study examined preferences for risk individually and in groups of two. Results show that a majority of groups act according to the preferences of one of the two pair members. This is not a result emphasized in previous social psychology research on groups. Thus, we propose a new explanation of group decision making based on strength of preference. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2006 |
URL: http://purl.umn.edu/21056 |
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| Registros recuperados: 45 | |
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