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A Whole Farm Analysis of the Influence of Auto-Steer Navigation on Net Returns, Risk, and Production Practices AgEcon
Shockley, Jordan M.; Dillon, Carl R.; Stombaugh, Timothy S..
A whole farm economic analysis was conducted to provide a detailed assessment into the economic, risk, and production implications due to the adoption of auto-steer navigation. It was determined that auto-steer navigation was profitable for a grain farmer in Kentucky with net returns increasing up to 0.90% ($3.35/acre). Additionally, the technology could be used in reducing production risk. Adoption of the technology also alters production practices for optimal use.
Tipo: Journal Article Palavras-chave: Economics; Farm management; Mean-variance; Precision agriculture; Simulation; Farm Management; Risk and Uncertainty; C61; C63; D81; Q12; Q16.
Ano: 2011 URL: http://purl.umn.edu/100640
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Analise de risco de sistemas de rotacao de culturas com triticale, sob sistema plantio direto. Repositório Alice
SANTOS, H. P. dos; AMBROSI, I.; LHAMBY, J. C. B.; BAIER, A. C..
Num periodo de cinco anos (1987 a 1991), foram avaliados, em Passo Fundo, RS, os efeitos de cinco sistemas de rotacao de culturas com triticale I (triticale/soja), sistema II (triticale/soja e aveia-preta/soja), sistema III (triticale/soja e ervilhaca/milho), sistema IV (triticale/soja, ervilhaca/milho e aveia-preta/soja) e sistema V (triticale/soja, triticale/soja, ervilhaca/milho e aveia-preta/soja). Em 1990, nos sistemas II, IV e V, a aveia-preta foi substituida por aveia-branca. Utilizou-se o delineamento de blocos ao acaso, com tres repeticoes. No presente trabalho, apresenta-se a analise de risco naquele periodo. Foram aplicados dois tipos de analise na receita liquida dos sistemas: analise da media variancia e analise de risco (distribuicao de...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Custo; Receita liquida; Media variancia; Dominancia estocastica; Cost; Net return; Mean-variance; Stochastic dominance.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/handle/doc/85586
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Choice of Optimal Planting and Marketing Decisions for Fresh Vegetable Producers: A Mathematical Programming Approach AgEcon
Vassalos, Michael; Dillon, Carl R.; Coolong, Tim.
This study combines whole farm economic analysis with biophysical simulation techniques in order to achieve a twofold objective. First, the study seeks to develop a multiple enterprise vegetable farm model with a production and marketing decision interface and, second, to determine optimal production practices for Kentucky vegetable growers. Three vegetable crops are examined: tomatoes, bell peppers and sweet corn. The findings indicate that the risk associated with vegetable production can be significantly mitigated with diversification of production mix and with a greater number of transplanting dates. However, this reduction in risk comes at a high cost in terms of expected net returns.
Tipo: Presentation Palavras-chave: Vegetable production; Mean-variance; Biophysical simulation; Farm management; Farm Management; C61; C63; D81.
Ano: 2012 URL: http://purl.umn.edu/120016
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Teoria dos jogos e seleção de portfólio: uma proposta de adaptação ao modelo minimax e aplicação ao mercado acionário brasileiro AgEcon
Farias, Christiano Alves; Vieira, Wilson da Cruz; Santos, Maurinho Luiz dos.
The objective of this paper was to compare and to analyze three portfolio selection models: Mean-Variance, Minimax and Minimax Weighted. These models were evaluated using historical data (September 1999 to August 2000, January 2001 to December 2001 and February 2002 to January 2003) obtained from the Brazilian Stock Market (Bovespa). They were selected optimal portfolios to each month based on the returns of the last twelve months. The results show that the returns obtained through the Mean-Variance model were superiors in certain circumstances and inferiors in others when compared to the Ibovespa index. The Minimax model obtained the best accumulated returns when compared with the others models and the Ibovespa index.
Tipo: Journal Article Palavras-chave: Portfolio selection; Mean-variance; Bovespa; Game theory; Financial Economics.
Ano: 2004 URL: http://purl.umn.edu/56814
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Willingness-to-Pay for Attribute Level and Variability: The Case of Mexican Millers’ Demand for Hard Red Winter Wheat AgEcon
Gallardo, Rosa Karina; Lusk, Jayson L.; Holcomb, Rodney B.; Rayas-Duarte, Patricia.
In-person interviews were carried out with Mexican millers who were administered a conjoint-type survey designed to incorporate uncertainty in attribute levels. Two methods were used to model millers’ risk preferences: a modified mean-variance approach and an explicit expected utility approach. Controlling for variability, Mexican millers are willing to pay premiums for increases in quality factors such as test weight, protein content, falling number, and dough strength/extensibility. We find millers are not particularly sensitive to changes in the variability of quality characteristics. Out-of-sample forecasts suggest the mean-variance model provides an accurate depiction of actual Mexican imports.
Tipo: Journal Article Palavras-chave: Mean-variance; Mexican wheat market; Moment generating function; Preference elicitation; Wheat quality; Agribusiness; Farm Management; Food Consumption/Nutrition/Food Safety; International Relations/Trade; Marketing; Production Economics; Risk and Uncertainty; C35; C42; Q13.
Ano: 2009 URL: http://purl.umn.edu/56646
Registros recuperados: 5
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