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| Registros recuperados: 23 | |
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| Drichoutis, Andreas C.; Lazaridis, Panagiotis. |
| This article explores the factors affecting demand for tastes in food. Following Silberberg (1985) we divide demand for food into demand for nutrition and demand for tastes. We first compute the minimum cost required to fulfil the Recommended Daily Allowances (RDAs) of households and attribute the difference of minimum cost from actual expenditures as the expenditure for tastes. Since prices are essential in deriving the minimum cost and data do not allow for the derivation of prices for food consumed away-from-home (FAFH), we also present a way to account for the FAFH expenditure. Data from the 1998/99 Greek Household Expenditure Survey are used. Results indicate a number of socioeconomic factors such as income, household size, urbanization, age and... |
| Tipo: Journal Article |
Palavras-chave: Nutrition; Tastes; Demand; Linear Programming; Tobit; Marketing. |
| Ano: 2009 |
URL: http://purl.umn.edu/93803 |
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| Sartwelle, James D., III; O'Brien, Daniel M.; Tierney, William I., Jr.; Eggers, Tim. |
| A survey of Kansas, Texas, and Iowa agricultural producers was taken to examine the factors affecting their grain marketing practices. Sales indices models and models of qualitative choice are used to determine whether marketers' choices of cash market, forward contract, or futures and options oriented marketing practices are significantly affected by their personal farm business characteristics. Results indicate that geographic location, farm size, grain enterprise specialization, farming experience, use of grain storage, and use of crop insurance have significant effects upon the respondents' choice of grain marketing practices. |
| Tipo: Journal Article |
Palavras-chave: Agricultural options; Cash marketing; Futures; Grain marketing practices; Multinomial logit; Tobit; Marketing. |
| Ano: 2000 |
URL: http://purl.umn.edu/15396 |
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| Dunn, Jerry W.; Williams, Jeffery R.. |
| Farm-level, cross-section and panel data were used with econometric methods to examine relationships between variability in net farm income and explanatory variables including government payments, gross crop income, gross livestock income, costs, efficiency measures, and other socioeconomic characteristics such as age, leverage, percent of land rented, and enterprise diversification. The results suggest that quantifying the impacts of socioeconomic factors on variability of net farm income is difficult. Among the income variables, changes in gross crop income had the largest impact. Among cross-section data, increases in interest costs, age, and diversification were found to have positive relationships with net income variability. However, only the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Diversification; Farm planning; Panel data; Risk; Tobit; Agricultural Finance; Farm Management. |
| Ano: 2000 |
URL: http://purl.umn.edu/36337 |
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| Hanson, Terrill R.; Shaik, Saleem; Coble, Keith H.; Edwards, Seanicaa; Miller, J. Corey. |
| Two double-limit tobit models are used to identify significant risk factors that most affect farm-raised catfish losses from weather-related events and from disease outbreaks. Results of the weather loss model indicate that the variables for operator education level, number of ponds, pond water depth, production management strategy, past experience with severe losses from low oxygen levels from off-farm power outages, past experience with severe losses from diseases, and being in the South are statistically significant. Results of the disease loss model indicate that the variables for operator experience and pond water depth are significant. De-velopment of models explaining weather and disease losses through observable variables pro-vides a better... |
| Tipo: Journal Article |
Palavras-chave: Aquaculture; Tobit; Risk management; Columnaris; Enteric septicemia of catfish; Weather losses; Livestock Production/Industries; Risk and Uncertainty. |
| Ano: 2008 |
URL: http://purl.umn.edu/44736 |
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| Drukker, David M.. |
| Categorical and limited dependent variable models are routinely estimated via maximum likelihood. It is well-known that the ML estimates of the parameters are inconsistent if the distribution or the skedastic component is misspecified. When conditional moment tests were first developed by Newey (1985) and Tauchen (1985), they appeared to offer a wide range of easy-to-compute specification tests for categorical and limited dependent variable models estimated by maximum likelihood. However, subsequent studies found that using the asymptotic critical values produced severe size distortions. This paper presents simulation evidence that the standard conditional moment test for normality after tobit estimation has essentially no size distortion and reasonable... |
| Tipo: Journal Article |
Palavras-chave: Conditional moment tests; Bootstrap; Tobit; Normality; Research Methods/ Statistical Methods. |
| Ano: 2002 |
URL: http://purl.umn.edu/115956 |
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| Layton, David F.; Siikamaki, Juha. |
| This paper considers the role of incentive payment programs in eliciting, estimating, and predicting landowners' conservation enrollments. Using both program participation and the amount of land enrolled, we develop two econometric approaches for predicting enrollments. The first is a multivariate censored regression model that handles zero enrollments and heterogeneity in the opportunity cost of enrollments by combining an inverse hyperbolic sine transformation of enrollments with alternative-specific correlation and random parameters. The second is a beta-binomial model, which recognizes that in practice elicited enrollments are essentially integer valued. We apply these approaches to Finland, where the protection of private nonindustrial forests is an... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Protection; Endangered; Voluntary; Incentive; Tobit; Beta-binomial; Stated preferences; Environmental Economics and Policy. |
| Ano: 2005 |
URL: http://purl.umn.edu/10775 |
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| Agyei-Sasu, Felix; Egyir, Irene Susana. |
| Purpose- The issue of export success and the ability to sustain oneself in international horticultural markets have become more critical in the recent global and economic downturn because of its significance to the economy and to actors in the horticultural export chain. The extent of success is even much critical for enterprises. Therefore this study establishes the factors which influence the intensity of export success which measures the extent of export success. Design- Primary data were collected from 52 managers and representatives of horticultural exporting firms through a semi-structured questionnaire. The tobit model was used to estimate the intensity of export success by horticultural enterprises in Ghana. Findings- The result indicates that,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Tobit; Export success; Horticulture; Enterprises; Ghana; Crop Production/Industries; International Relations/Trade. |
| Ano: 2010 |
URL: http://purl.umn.edu/97071 |
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| Mishra, Ashok K.; Erickson, Kenneth W.; Harris, James Michael; Hallahan, Charles B.; Uematsu, Hiroki. |
| This study examines the determinants of income diversification of farm households in the United States. Farm households allocate their time between farm and off-farm activities to help stabilized household income (consumption). What characterizes those households who engage in off-farm activities? Is there any pattern over time? Using 1999, 2003 and 2007 farm-level data from the USDA’s Agricultural Resource Management Survey (ARMS), this study estimates intensity of off-farm income (or income diversification). The results show that older operators, full owners, and small farms have higher intensity of off-farm income in total household income. In contrast, dairy farms, vertically coordinated farms and farms located in the Southern and Pacific regions have... |
| Tipo: Journal Article |
Palavras-chave: Tobit; Income diversification; Vertical integration; Tenure; Farm households; Agricultural Finance; Consumer/Household Economics; D1; J2; Q12. |
| Ano: 2010 |
URL: http://purl.umn.edu/61632 |
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| Bernard, John C.; Pesek, John D., Jr.; Pan, Xiqian. |
| Typical supermarket chickens are produced with novel or controversial attributes. This continues despite contrasting growth in consumer interest in organic and natural foods. This study surveyed Delaware consumers’ likelihood to purchase chicken given different attributes: free range, given antibiotics, irradiated, fed genetically modified (GM) fee, GM chicken, and price. Examining conjoint analysis data with a heteroskedastic two-limit tobit model, GM chicken and other novel attributes were found to lower purchase likelihood significantly. Understanding these results should help the industry meet consumer preferences while aiding its continued expansion to benefit workers and growers across the South. |
| Tipo: Journal Article |
Palavras-chave: Antibiotics; Chicken; Conjoint analysis; Genetically modified; Heteroskedastic; Irradiated; Tobit; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Q13; D12; C24. |
| Ano: 2007 |
URL: http://purl.umn.edu/6058 |
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| Park, Timothy A.; Florkowski, Wojciech J.. |
| A generalized Heckman model of purchase decisions incorporating perceived consumer quality attributes, ease of purchase, and familiarity with marketing outlets as factors influencing pecan purchases is estimated. Marketing efforts that encourage consumers to expand expenditures on nut products increase both the probability of pecan purchases and the amount purchased. Consumers who use all types of nuts in a wider variety of foods tend to purchase pecans more frequently. A diverse set of marketing outlets provides consumers with convenient sources of purchasing pecans and has a significant influence on the probability of pecan purchases but not the amount of pecans purchased. |
| Tipo: Journal Article |
Palavras-chave: Generalized Heckman model; Pecan purchases; Tobit; Demand and Price Analysis. |
| Ano: 1999 |
URL: http://purl.umn.edu/15130 |
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| Belasco, Eric J.; Ghosh, Sujit K.. |
| This research develops a mixture regression model that is shown to have advantages over the classical Tobit model in model fit and predictive tests when data are generated from a two step process. Additionally, the model is shown to allow for flexibility in distributional assumptions while nesting the classic Tobit model. A simulated data set is utilized to assess the potential loss in efficiency from model misspecification, assuming the Tobit and a zero-inflated log-normal distribution, which is derived from the generalized mixture model. Results from simulations key on the finding that the proposed zero-inflated log-normal model clearly outperforms the Tobit model when data are generated from a two step process. When data are generated from a Tobit... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Censoring; Livestock production; Tobit; Zero-inflated; Bayesian; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/6341 |
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| Registros recuperados: 23 | |
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