Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 39
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
The Implications of Alternative Biofuel Policies on Carbon Leakage 31
Drabik, Dusan; de Gorter, Harry; Just, David R..
We show how leakage differs, depending on the biofuel policy and market conditions. Carbon leakage is shown to have two components: a market leakage effect and an emissions savings effect. We also distinguish domestic and international leakage and show how omitting the former like the IPCC does can bias leakage estimates. International leakage is always positive, but domestic leakage can be negative. The magnitude of market leakage depends on the domestic and foreign gasoline supply and fuel demand elasticities, and on consumption and production shares of world oil markets for the country introducing the biofuel policy. Being a small country in world oil markets does not automatically imply that leakage is 100 percent or above that of a large country. We...
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Market leakage; Carbon leakage; Emissions savings; Domestic leakage; Tax credit; Mandate; Environmental Economics and Policy; Q27; Q41; Q42; Q54.
Ano: 2010 URL: http://purl.umn.edu/102689
Imagem não selecionada

Imprime registro no formato completo
Tarnishing Silver Bullets: Bt Technology Adoption, Bounded Rationality and the Outbreak of Secondary Pest Infestations in China 31
Just, David R.; Wang, Shenghui; Pinstrup-Andersen, Per.
As with other technologies, adoption of Bt seed requires technology specific knowledge. Growing secondary pest populations have slowly eroded the benefits of Bt technology in China. We illustrate the effects of introducing Bt technology among farmers with an imperfect knowledge of secondary pest problems using a simple dynamic model. The stochastic dominance tests based on primary household data from 1999-2001 and 2004 in China provide strong evidence that secondary pests, if unanticipated, could completely erode all benefits from Bt cotton cultivation. Our empirical tests also suggest that planting refuge concurrent with Bt adoption provides for the sustainable development of Bt technology.
Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2006 URL: http://purl.umn.edu/21230
Imagem não selecionada

Imprime registro no formato completo
Health Information Availability and the Consumption of Eggs: Are Consumers Bayesians? 31
Chang, Hung-Hao; Just, David R..
This study uses a generalized Bayesian updating model to estimate the impact of health information appearing in the popular media on the consumption of eggs. The framework permits us to explore the possible effects of several known psychological biases in learning. Generalized Bayesian learning allows media publications to have a decaying effect on behavior. Our primary finding is that health information has a significant impact on U.S. egg consumption. Furthermore, the reaction to health information is found to be temporary. Health information will, on average, decay to a point of unimportance in a matter of a few weeks without a constant and consistent stream of confirming information.
Tipo: Journal Article Palavras-chave: Generalized Bayesian model; Health knowledge; Information; Psychological bias; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/8602
Imagem não selecionada

Imprime registro no formato completo
Livelihood Disruption and Venture Creation: Entrepreneurship as Technology Adoption A Comparison between Kentucky and Shaanxi Farmers 31
Khantachavana, Sivalai V.; Just, David R.; Pushkarskaya, Helen N.; Kong, Rong.
In the US, The Tobacco Transition Payment Program, also called the "tobacco buy-out," helps tobacco quota holders and producers transition to the free market. In China, the transaction of Land Use Rights providing farmers’ ability to buy or sell Land Use Rights has been seriously considered by the Chinese government. The uncertainty in household income and changes in economic environment during the US Tobacco Transition Payment Program and the Chinese Land Use Rights Regime lead many individuals into entrepreneurial activities. Entrepreneurship often means making changes in livelihood activities that involve substantial risks to income. While the rewards may be substantial, transactions costs may make decisions irreversible. This paper draws a comparison...
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011 URL: http://purl.umn.edu/103928
Imagem não selecionada

Imprime registro no formato completo
Health Information Availability and the Consumption of Eggs: Are Consumers Bayesians? 31
Chang, Hung-Hao; Just, David R..
We use a generalized Bayesian updating model to estimate the impact of health information appearing in the popular media on the consumption of eggs. Our model allows media publications with differing circulation numbers to have differing effects. Further, we explore the possible effects of several known psychological biases in learning.
Tipo: Conference Paper or Presentation Palavras-chave: Marketing.
Ano: 2004 URL: http://purl.umn.edu/19948
Imagem não selecionada

Imprime registro no formato completo
Average vs. Marginal Risk Aversion: Reconciling Simultaneously Risk Averse and Risk Loving Behavior 31
Just, David R.; Lybbert, Travis J..
Tipo: Conference Paper or Presentation Palavras-chave: Risk and Uncertainty.
Ano: 2007 URL: http://purl.umn.edu/9979
Imagem não selecionada

Imprime registro no formato completo
Livelihood Disruption and Venture Creation: Entrepreneurship as Technology Adoption, A Case of Tobacco Farmer in Kentucky 31
Khantachavana, Sivalai V.; Just, David R.; Pushkarskaya, Helen N..
Entrepreneurship means making discrete changes in livelihood activities that involve substantial risks to income. While the rewards may be substantial, transactions costs may make decisions irreversible. This paper draws a comparison between entrepreneurship and technology adoption. Adopting a new production technology also involves substantial risks. The economics of technology adoption is a well developed literature with many accepted and testable models. Most prominent are the theories of learning by using and learning by doing. We review the technology adoption literature, drawing out lessons for entrepreneurship research. We then apply an entrepreneurship as technology adoption model to a unique dataset collected during the tobacco buyout. The...
Tipo: Conference Paper or Presentation Palavras-chave: Entrepreneurship; Technology adoption; Tobacco buyout; Agribusiness; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/61296
Imagem não selecionada

Imprime registro no formato completo
Could Behavioral Economics Help Improve Diet Quality for Nutrition Assistance Program Participants? 31
Just, David R.; Mancino, Lisa; Wansink, Brian.
Findings from behavioral and psychological studies indicate that people regularly and predictably behave in ways that contradict some standard assumptions of economic analysis. Recognizing that consumption choices are determined by factors other than prices, income, and information illuminates a broad array of strategies to influence consumers’ food choices. These strategies expand the list of possible ideas for improving the diet quality and health of participants in the U.S. Department of Agriculture’s (USDA) Food Stamp Program; the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC); and the National School Lunch and School Breakfast Programs.
Tipo: Report Palavras-chave: Behavioral economics; Food consumption; Obesity; Food stamps; National School Lunch Program; Nutrition assistance; WIC; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Institutional and Behavioral Economics.
Ano: 2007 URL: http://purl.umn.edu/6391
Imagem não selecionada

Imprime registro no formato completo
Behavioral Economic Concepts To Encourage Healthy Eating in School Cafeterias: Experiments and Lessons From College Students 31
Just, David R.; Wansink, Brian; Mancino, Lisa; Guthrie, Joanne F..
Changing small factors that influence consumer choice may lead to healthier eating within controlled settings, such as school cafeterias. This report describes a behavioral experiment in a college cafeteria to assess the effects of various payment options and menu selection methods on food choices. The results indicate that payment options, such as cash or debit cards, can significantly affect food choices. College students using a card that prepaid only for healthful foods made more nutritious choices than students using either cash or general debit cards. How and when individuals select their food can also influence food choices. College students who preselected their meals from a menu board made significantly different food choices than students who...
Tipo: Report Palavras-chave: Behavioral economics; Healthy eating; Diet quality; Food choices; School meal programs; Experimental economics; ERS; USDA.; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics; Teaching/Communication/Extension/Profession.
Ano: 2008 URL: http://purl.umn.edu/56489
Imagem não selecionada

Imprime registro no formato completo
MARKET POWER AND OFF-INVOICE TRADE PROMOTIONS IN THE US: AN EMPIRICAL INVESTIGATION 31
Maratou, Laoura; Gomez, Miguel I.; Just, David R..
This article employs a Tobit model to examine whether the market power of manufacturers and retailers influence trade promotion decisions in the US food sector. Greater retailer market power increases allocation of funds to off-invoice trade promotions. We find evidence that the balance of power favors food retailers.
Tipo: Conference Paper or Presentation Palavras-chave: Marketing.
Ano: 2004 URL: http://purl.umn.edu/20280
Imagem não selecionada

Imprime registro no formato completo
The Socially Optimal Import Tariff and Tax Credit for Ethanol with Farm Subsidies 31
de Gorter, Harry; Just, David R.; Tan, Qinwen.
We determine how the U.S. ethanol tax credit and import tariff affect the corn-ethanol-gasoline markets and how farm subsidies interact with these policies. We show how the ethanol tax credit and import tariff each uniquely affect the ethanol and gasoline prices. The ethanol import tariff alone increases the terms of trade in ethanol imports and corn exports, but decreases the terms of trade in gasoline imports and the tax costs of farm price supports. With price-contingent farm subsidies in place, the optimal tariff and tax credit will depend on the price level. When farm subsidy expenditures are high, import subsidies for ethanol may increase social welfare due to the substantial size of the fuel market relative to the corn market.
Tipo: Journal Article Palavras-chave: Biofuels; Ethanol; Tariffs; Tax credit; Welfare; Agricultural and Food Policy.
Ano: 2009 URL: http://purl.umn.edu/49865
Imagem não selecionada

Imprime registro no formato completo
Biosecurity, Terrorism, and Food Consumption Behavior: Using Experimental Psychology to Analyze Choices Involving Fear 31
Just, David R.; Wansink, Brian; Turvey, Calum G..
How would a possible food safety scare influence food consumption? Using techniques from experimental psychology, a study of 103 lunchtime participants suggests that a food scare--avian influenza--would decrease consumption of the affected food by 17% if the subjects believed it was naturally occurring, and by 26% if they believed it was the result of terrorism. While individual consumption decreased, very few eliminated all consumption of the affected food. We argue that experimental psychology is essential when attempting to study behavior in food safety where hypothetical scenarios and surveys would not capture the emotional nature of the response.
Tipo: Journal Article Palavras-chave: Avian influenza; Experimental psychology; Food safety; Terrorism; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Food Security and Poverty.
Ano: 2009 URL: http://purl.umn.edu/50085
Imagem não selecionada

Imprime registro no formato completo
DEMAND FOR AGRICULTURAL ECONOMIC INFORMATION 31
Wu, Steven Y.; Just, David R.; Zilberman, David; Wolf, Steven A..
Using data gathered in two surveys we analyze the movement of information in agriculture. The relative importance of varying classes of information providers are assessed by classes of users. A network based framework expands models of human capital and bounded rationality to assess the calculus of choice of information.
Tipo: Conference Paper or Presentation Palavras-chave: Information; Bounded rationality; Institutional and Behavioral Economics.
Ano: 1999 URL: http://purl.umn.edu/21712
Imagem não selecionada

Imprime registro no formato completo
Household Welfare and Multi-Commodity Price Risk: Evidence from Rural Ethiopia (PowerPoint) 31
Bellemare, Marc F.; Barrett, Christopher B.; Brown, Zachary S.; Just, David R..
Tipo: Conference Paper or Presentation Palavras-chave: Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/48912
Imagem não selecionada

Imprime registro no formato completo
Foreword: Special Issue on the Economics of Local Food Markets 31
Just, David R.; Blalock, Garrick.
Tipo: Journal Article Palavras-chave: Agribusiness; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Teaching/Communication/Extension/Profession.
Ano: 2011 URL: http://purl.umn.edu/106066
Imagem não selecionada

Imprime registro no formato completo
Risk, Overconfidence and Production in a Competitive Equilibrium 31
Just, David R.; Cao, Ying; Zilberman, David.
Previous studies have found underestimation of risk, or overconfidence, to be pervasive. In this paper, we model overconfidence as a reduction in perceived variance. We generalize the analysis of Sandmo and examine the effects of competition on firms displaying overconfidence. Cases for both competitive equilibrium and imperfect competition are investigated. We show that overconfidence may strictly dominate rationality in a competitive market by leading risk averse producers to invest greater amounts and produce more. This leads to a higher average profit, and greater variance of profits, leaving the producer a greater probability of surviving competitive pressures. Despite the greater variance of profits, if enough producers underestimate their risk, they...
Tipo: Conference Paper or Presentation Palavras-chave: Overconfidence; Misperception; Production; Competition; Production Economics; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/49161
Imagem não selecionada

Imprime registro no formato completo
The Implications of Alternative Biofuel Policies on Carbon Leakage 31
Drabik, Dusan; de Gorter, Harry; Just, David R..
We show carbon leakage depends on the type of biofuel policy (tax credit versus mandate), the domestic and foreign gasoline supply and fuel demand elasticities, and on consumption and production shares of world oil markets for the country introducing the biofuel policy. The components of carbon leakage – market leakage and emissions savings – are counteracting: carbon leakage increases with market leakage but decreases with emissions savings. We also distinguish domestic and international leakage where the latter is always positive, but domestic leakage can be negative with a mandate. The IPCC definition of leakage omits domestic leakage, resulting in biased estimates. Leakage with a tax credit always exceeds that of a mandate, while the combination of a...
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Tax credit; Mandate; Market leakage; Carbon leakage; Emissions savings; Domestic leakage; Resource /Energy Economics and Policy; Q27; Q41; Q42; Q54.
Ano: 2011 URL: http://purl.umn.edu/114432
Imagem não selecionada

Imprime registro no formato completo
On the EU–U.S. Biodiesel ‘Splash & Dash' Controversy: Causes, Consequences and Policy Recommendations 31
de Gorter, Harry; Drabik, Dusan; Just, David R..
Replaced with revised version of paper on 10/26/10.
Tipo: Conference Paper or Presentation Palavras-chave: Splash & dash; Biodiesel; Blender’s tax credit; Tax exemption; Trade; European Union; Unites States; Agricultural and Food Policy; International Relations/Trade; F13; Q17; Q27; Q42.
Ano: 2010 URL: http://purl.umn.edu/61425
Imagem não selecionada

Imprime registro no formato completo
Loss Aversion and Reference Points in Contracts 31
Just, David R.; Wu, Steven Y..
Loss aversion has become the dominant alternative to expected utility theory for modeling choice under uncertainty. The setting of the base payment in contracts provides an interesting application of referenced based decision theory. The impact of loss aversion on contract structure depends critically on whether reservation opportunities (outside options) are evaluated with respect to the reference point implied in the contract. We show that when reservation opportunities are independent of the reference point, reward contracts are optimal. However, when reservation opportunities are evaluated against the reference point, then penalty contracts are more efficient.
Tipo: Conference Paper or Presentation Palavras-chave: Risk and Uncertainty; L14; D81; D21; D82.
Ano: 2005 URL: http://purl.umn.edu/28727
Imagem não selecionada

Imprime registro no formato completo
Modeling Carbon Leakages with Forestation Policies 31
de Gorter, Harry; Drabik, Dusan; Just, David R..
This paper analyzes carbon leakage due to reduced emissions from deforestation (RED). We find that leakage with RED is good because the policy induces afforestation that contributes to a further carbon sequestration. By ignoring the domestic component of carbon leakage, the literature can either overestimate or underestimate leakage, depending on the magnitudes of the numerator and the denominator of the leakage formulas. Unlike the literature, we include the land and agricultural markets in the analysis of carbon leakage with forestation policies. In this model, carbon leakage depends on: (1) supply and demand elasticities of timber production and consumption, respectively in the country introducing a RED policy (Home country) and in the rest of the...
Tipo: Conference Paper or Presentation Palavras-chave: Carbon leakage; Forestry; Reduced emissions from deforestation; Afforestation; Resource /Energy Economics and Policy; Q23; Q24; Q54.
Ano: 2011 URL: http://purl.umn.edu/114450
Registros recuperados: 39
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional