Consulta: creatorFacets:"Lybbert,   Travis J."
Registros recuperados: 11
Data/hora: 12/06/2024 10:41:38

Indian Farmers'  Valuation of Crop Yield Distributions: Will poor farmers value 'pro-poor' seeds?
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.
Potential poverty traps among the rural poor suggest a need to reduce poor farmers' vulnerability by stabilizing crop yields and limiting yield losses. Advances in agricultural biotechnology enable breeders to address this need more directly than ever before with crops that reduce production risk by tolerating climate fluctuation or resisting biotic stresses. Will poor farmers who could benefit most from less vulnerability choose to purchase such risk-reducing seeds? I use data from a household survey and experiment involving farmers in India to infer their valuation of changes in the mean, variance, and skewness of yield distributions. I conclude that these farmers value increases in expected yield in the yield distribution but seem indifferent about...
Tipo: Conference Paper or Presentation
Palavras-chave: Poverty; Risk; Biotechnology; Experimental Economics; Farm Management; C9–; D8; O1; Q1.
Ano: 2005
URL: http://purl.umn.edu/19160

Does Resource Commercialization Induce Local Conservation? A Cautionary Tale From Southwestern Morocco
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.; Barrett,   Christopher B.; Narjisse,   Hamid.
Ecotourism, bioprospecting and non-timber product marketing have been promoted recently as market-based instruments for environment protection, but without sound understanding of the resulting net conservation effects. We present evidence on the local conservation effects of recent argan oil commercialization in Morocco, which seems a promising case study in conservation through resource commercialization. Our empirical analysis shows, however, that resource commercialization is not creating strong net conservation incentives because assumptions implicit in the prevailing logic prove incorrect in this case. Generally, the experience of southwestern Morocco provides a cautionary tale about the assumed efficacy of conservation strategies founded on resource...
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/36085

Is Risk Aversion Really Correlated with Wealth? How estimated probabilities introduce spurious correlation
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.; Just,   David R.
Economists attribute many common behaviors to risk aversion and frequently focus on how wealth moderates risk preferences. This paper highlights a problem associated with empirical tests of the relationship between wealth and risk aversion that can arise when the probabilities individuals face are unobservable to researchers. The common remedy for unobservable probabilities involves the estimation of probabilities in a profit or production that includes farmer, farm and agro-climatic variables. Unfortunately, these variables are often correlated with wealth such that estimated probabilities are likely to leave statistical fingerprints on subsequently-estimated risk aversion coefficients and may thereby introduce spurious correlations between wealth and...
Tipo: Conference Paper or Presentation
Palavras-chave: Risk and Uncertainty.
Ano: 2006
URL: http://purl.umn.edu/21167

Integrating Economic Analysis with a Randomized Controlled Trial: Willingness-to-Pay for a New Maternal Nutrient Supplement
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Adams,   Katherine P.; Vosti,   Stephen A.; Lybbert,   Travis J.; Ayifah,   Emmanuel.
Maternal nutrition during pregnancy can have significant implications for a child’s prenatal growth and development, and undernutrition experienced during the prenatal period increases the risk of early childhood morbidity and mortality and can permanently impair a child’s physical growth and cognitive development.  We use new data from Ghana generated using contingent valuation and experimental auction techniques to estimate willingness-to-pay (WTP) for LNS, a new nutrient supplement aimed at preventing maternal undernutrition during pregnancy.  We also explore the relative importance of individual and household characteristics as well as information about the long-term benefits of preventing undernutrition on WTP.  We find that WTP is positive for a...
Tipo: Conference Paper or Presentation
Palavras-chave: Economic Development; Nutrition; Willingness-to-Pay; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; International Development.
Ano: 2011
URL: http://purl.umn.edu/103793

Combining Consumer Valuation Research with Sensory Science Techniques: A Laboratory Experiment
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Gustafson,   Christopher R.; Lybbert,   Travis J.; Sumner,   Daniel A.
In this research, we integrated an experimental auction with sensory science techniques—namely, trained sensory panels used to analyze the sensory attributes of wines—to examine the effects of objective and sensory information in the market for California-produced Cabernet Sauvignons. The experiment permitted observation of consumer valuation for sensory attributes of wine, appellations, expert ratings, and wineries.  Participants submitted bids each time they received new information about the wines.  The balanced experimental design permits evaluation of the effects of consumer characteristics on attribute valuation.  We had 236 people participate in the research, which consisted of nine rounds of bidding and one round of hedonic liking scores. Rounds...
Tipo: Conference Paper or Presentation
Palavras-chave: Experimental Economics; Willingness to Pay; WTP; Wine; Consumer Valuation; Hedonic Pricing; Sensory Analysis; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Marketing; Research Methods/ Statistical Methods.
Ano: 2011
URL: http://purl.umn.edu/103430

BAYESIAN HERDERS: ASYMMETRIC UPDATING OF RAINFALL BELIEFS IN RESPONSE TO EXTERNAL FORECASTS
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.; Barrett,   Christopher B.; McPeak,   John G.; Luseno,   Winnie K.
Temporal climate risk weighs heavily on many of the world's poor. Recent advances in model-based climate forecasting have expanded the range, timeliness and accuracy of forecasts available to decision-makers whose welfare depends on stochastic climate outcomes. There has consequently been considerable recent investment in improved climate forecasting for the developing world. Yet, in cultures that have long used indigenous climate forecasting methods, forecasts generated and disseminated by outsiders using unfamiliar methods may not readily gain the acceptance necessary to induce behavioral change.  The value of model-based climate forecasts depends critically on the premise that forecast recipients actually use external forecast information to update...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; O1; D1; Q12.
Ano: 2003
URL: http://purl.umn.edu/14762

STOCHASTIC WEALTH DYNAMICS AND RISK MANAGEMENT AMONG A POOR POPULATION
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.; Barrett,   Christopher B.; Desta,   Solomon; Coppock,   D. Layne.
The literature on economic growth and development has focused considerable attention on questions of risk management and the possibility of multiple equilibria associated with poverty traps. We use herd history data collected among pastoralists in southern Ethiopia to study stochastic wealth dynamics among a very poor population.  These data yield several novel findings.  Although covariate rainfall shocks plainly matter, household-specific factors, including own herd size, account for most observed variability in wealth dynamics.  Despite longstanding conventional wisdom about common property grazing lands, we find no statistical support for the tragedy of the commons hypothesis. It appears that past studies may have conflated costly self-insurance with...
Tipo: Working or Discussion Paper
Palavras-chave: Common property; Covariate risk; Ethiopia; Idiosyncratic risk; Poverty traps; Social insurance; Risk and Uncertainty; O1; Q12.
Ano: 2002
URL: http://purl.umn.edu/14736

POWDERY MILDEW RISK AND FORECASTING IN WINE GRAPES: DO GROWERS CHANGE RISK MANAGEMENT STRATEGIES IN RESPONSE TO DISEASE FORECASTS?
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.; Magnan,   Nicholas; Gubler,   W. Douglas.
How and how well growers manage the risks inherent in agriculture has direct welfare implications for producers and consumers at both local and societal levels. While better weather, pest and disease forecast information are rapidly disseminating among producers and are often touted as promising inputs to production and risk management, little is known about how this new information actually shapes producer behavior in practice. We argue that better forecast information can benefit growers and improve their capacity to manage disease and pests effectively, but that we must jointly consider the various margins of adjustment available to growers in order to properly understand their response to this improved information. Using the case of California wine...
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries; Farm Management; D8; Q1; Q5.
Ano: 2010
URL: http://purl.umn.edu/61745

Average vs. Marginal Risk Aversion: Reconciling Simultaneously Risk Averse and Risk Loving Behavior
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Just,   David R.; Lybbert,   Travis J.
Tipo: Conference Paper or Presentation
Palavras-chave: Risk and Uncertainty.
Ano: 2007
URL: http://purl.umn.edu/9979

Dynamic Field Experiments in Development Economics: Risk Valuation in Morocco, Kenya, and Peru
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.; Galarza,   Francisco B.; McPeak,   John G.; Barrett,   Christopher B.; Boucher,   Stephen R.; Carter,   Michael R.; Chantarat,   Sommarat; Fadlaoui,   Aziz; Mude,   Andrew G.
The effective design and implementation of interventions that reduce vulnerability and poverty require a solid understanding of underlying poverty dynamics and associated behavioral responses. Stochastic and dynamic benefit streams can make it difficult for the poor to learn the value of such interventions to them. We explore how dynamic field experiments can help (i) intended beneficiaries to learn and understand these complicated benefit streams, and (ii) researchers to better understand how the poor respond to risk when faced with nonlinear welfare dynamics. We discuss and analyze dynamic risk valuation experiments in Morocco, Peru, and Kenya.
Tipo: Journal Article
Palavras-chave: Poverty; Risk and uncertainty; Dynamics; Experiments; Kenya; Morocco; Peru; International Development; Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 2010
URL: http://purl.umn.edu/90791

Drought Risk and Drought Response in Morocco: Vulnerability, Risk Perceptions and Drought Coping Among Rainfed Cereal Farmers
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Lybbert,   Travis J.; Kusunose,   Yoko; Magnan,   Nicholas; Fadlaoui,   Abdelaziz.
Tipo: Conference Paper or Presentation
Palavras-chave: Drought; Coping; Vulnerability; Risk; Community/Rural/Urban Development; Food Security and Poverty; Risk and Uncertainty.
Ano: 2009
URL: http://purl.umn.edu/49367