SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

A revealed-preference approach is proposed for the evaluation of the impact of changed patterns of herbicide use on RR soybeans. The results indicate that farmers consider herbicide safety in their herbicide choices and associate positive values with safety improvements. The aggregate welfare impact of reduced risk for the U.S. soybean farmers was estimated to be $90.3 million in 2001.

Towards a Generalizable Measure of the Value of a Change in Pesticide Use

Palavras-chave: Crop Production/Industries.

Ano: 2008

URL: http://purl.umn.edu/8215

This study develops a comparable measure of pesticide risks. Based on revealed preference method an index system is developed for individual pesticides combining the information on different environmental and health risks. A data obtained from a survey of U.S. farmers has revealed that on average the adoption of Roundup Ready soybeans results in reduced toxicity of herbicides.

Relative Importance of Environmental Attributes Using Logistic Regression

Palavras-chave: Risk and Uncertainty.

Ano: 2005

URL: http://purl.umn.edu/35513

Carpio, Carlos E.; Sydorovych, Olha; Marra, Michele C..

We investigate the problem of determining the relative importance of attributes in the discrete choice setting. Four alternative methods of extracting the relative importance of attributes are considered. The empirical application involves the development of a risk index system for individual herbicides combining the information on the herbicides' different human and environmental risks. The values of the pesticide risk indices are found to be consistent across the different methods.

An Application of Conjoint Analysis in Agricultural Sustainability Assessment

Palavras-chave: Environmental Economics and Policy.

Ano: 2007

URL: http://purl.umn.edu/34846

Sydorovych, Olha; Wossink, Ada.

Increasing public interest in the concept of sustainable agriculture has resulted in the development of a number of methods that could be used for the assessment of sustainability of various agricultural production systems. Because of its complex, multi-dimensional nature, sustainability is most often assessed using numerous indicators, which make aggregate comparisons among systems difficult. In this paper we propose a methodology that could be beneficial in aggregate sustainability assessment. We apply conjoint analysis to identify economic, social, and ecological attributes that are perceived as important for agricultural sustainability by different stakeholders and to assess their relative impact on the overall sustainability measure.

The Effect of Label Information on Farmers’ Pesticide Choice

Palavras-chave: Conjoint analysis; Choice experiments; Sustainability assessment; Environmental Economics and Policy.

Ano: 2008

URL: http://purl.umn.edu/44464

Hasing, Tomas; Carpio, Carlos E.; Willis, David B.; Sydorovych, Olha; Marra, Michele C..

The general objective of this study was to analyze the effect of labeling information on farmers’ herbicide choice. Herbicide choices made by farmers were used to estimate their willingness to pay for different herbicide attributes. Estimation results indicate that human health and environmental statements displayed on pesticide labels (which reflect higher level of risk) are important components in herbicide selection. For example, it is estimated that farmers are willing to pay, on average, $27 per acre to avoid using an herbicide with the word “Warning” and $38 per acre to avoid using an herbicide with the word “Danger.”

Valuing the Changes in Herbicide Risks Resulting from Adoption of Roundup Ready Soybeans by U.S. Farmers: A Revealed-Preference Approach

Palavras-chave: Mixed logit; Household production models; Non-nested models.; Demand and Price Analysis; Environmental Economics and Policy.

Ano: 2010

URL: http://purl.umn.edu/61131

Assessing Sustainability of Agricultural Systems: Evidence from a Conjoint Choice Survey

Valuing the Changes in Herbicide Risks Resulting from Adoption of Roundup Ready Soybeans by U.S. Farmers: A Revealed-Preference Approach

Tipo: Journal Article

Palavras-chave: Pesticide human and environmental risks; Revealed preferences; Roundup Ready soybeans; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Risk and Uncertainty; Q51.

Ano: 2008

URL: http://purl.umn.edu/47258

Sydorovych, Olha; Wossink, Ada.

This study identifies a list of economic, social, and ecological agricultural sustainability attributes based on experts' opinions. Next, the attributes are used in a conjoint choice experiment which enables direct extraction of the relative impact of the attributes and attribute levels on individual respondents' perception of overall sustainability.

A Genetically Engineered Crop's Impact on Pesticide Use: A Revealed-Preference Index Approach

Palavras-chave: Environmental Economics and Policy.

Ano: 2007

URL: http://purl.umn.edu/34889

Towards a Generalizable Measure of the Value of a Change in Pesticide Use

A revealed-preference-based method is proposed for assessment of the environmental and human health impact of genetically engineered (GE) crops. This method employs the relative pesticide toxicity information from farmers' pesticide choices combined with volume of pesticides as an alternative to previous methods which are based on volume only, on number of pesticide applications, or on stated preferences. The method is applied to estimate the changes in the impact of herbicides after environmental and health perspective. The results indicate that, on average, a reduction in herbicide human heath and environmental impacts occurs when farmers adopt RR soybean varieties.

Tipo: Journal Article

Palavras-chave: Environmental impact; Genetically engineered crops; Pesticide risk index; Revealed preference information; Roundup Ready soybeans; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.

Ano: 2007

URL: http://purl.umn.edu/7083

A risk index system combining information on different environmental and health risks of pesticides is developed to evaluate the impact of Roundup Ready (RR) soybean adoption on pesticide use. A data set obtained from a survey of U.S. farmers indicates that on average adoption of RR soybeans results in reduced toxicity of herbicides. The contingent valuation method is used to estimate the value to the farmers of additional herbicide safety.