|
|
|
Registros recuperados: 23 | |
|
| |
|
| |
|
|
Kherallah, Mylene; Minot, Nicholas; Gruhn, Peter. |
In response to slow growth in the agricultural sector and as part of a general shift towards a more market-oriented economy, the Government of Egypt started liberalizing the agricultural sector in 1987. Controls over wheat production and marketing were eliminated and wheat producer prices were brought closer to international levels. As a result, there has been remarkable increases in wheat crop area and yields, causing wheat production to triple from 1986 to 1998. This study analyzes the results of a survey of 800 Egyptian wheat farmers in order to address three issues that are of interest to agricultural reform policy in Egypt. First, what are the patterns in wheat production and marketing that have emerged following the economic reforms? Second, why is... |
Tipo: Working or Discussion Paper |
Palavras-chave: Small farmer; Wheat yields; Egypt; Econometrics; Agricultural policy; Crop Production/Industries. |
Ano: 1999 |
URL: http://purl.umn.edu/97384 |
| |
|
|
Brown, Jeff E.; Ethridge, Don E.; Hudson, Darren; Engels, Carlos. |
An automated price reporting system developed through computer technology and hedonic price theory is used to estimate daily cotton market prices, premiums, and discounts. This objective approach for reporting cotton market prices was developed to complement the objective measures of high volume instrument grading of cotton. The computerized, econometric system is limited to the Texas and Oklahoma marketing regions where sales are readily available from electronic markets. The econometric based system has shown all the characteristics of an efficient price reporting system; it is accurate, reliable, consistent, and repeatable in its working process and price estimates. |
Tipo: Journal Article |
Palavras-chave: Computer automation; Cotton marketing; Econometrics; Hedonic price analysis; Price reporting; Crop Production/Industries; Marketing. |
Ano: 1995 |
URL: http://purl.umn.edu/15264 |
| |
|
| |
|
| |
|
|
Petrick, Martin. |
This paper argues that mainstream economics does not follow the positivist research tradition it (often implicitly) claims to follow and expresses some serious doubt that econometrics in particular can make economics a hard science. Mathematical rigour and sophisticated statistical techniques may be regarded as persuasive analytical tools in economics, but their mere application does not guarantee good research practice. The paper outlines an alternative methodological view of pragmatic instrumentalism in which the well known tools of economic analysis can find a new place. Instead of relying on a narrow rule that purports to produce universal truth, this view encourages to increase the target area for questioning and probing. Much more attention is paid... |
Tipo: Working or Discussion Paper |
Palavras-chave: Economic method; Econometrics; Philosophy of science; Pragmatic instrumentalism; Research Methods/ Statistical Methods; B41; C10. |
Ano: 2004 |
URL: http://purl.umn.edu/14911 |
| |
|
| |
|
|
Wachenheim, Cheryl J.; Novak, Patrick J.; DeVuyst, Eric A.; Lambert, David K.. |
Co-products of processing agricultural commodities are often marketed through private transaction rather than through public markets or those in which public transaction information is recorded or available. The resulting lack of historical price information prohibits the use of positive time series techniques to estimate demand. Demand estimates for co-products are of value to both livestock producers, who obtain them for use in livestock rations, and processors, who must sell or otherwise dispose of them. Linear programming has long been used, first by researchers and later as a mainstream tool for nutritionists and producers, to formulate least-cost livestock rations. Here it is used as a normative technique to estimate step function demand... |
Tipo: Working or Discussion Paper |
Palavras-chave: Co-products; Demand estimation; Econometrics; Linear programming; Agribusiness. |
Ano: 2001 |
URL: http://purl.umn.edu/23488 |
| |
|
| |
|
|
Moraes-Oliveira,Adriana Ferreira de; Aparecido,Lucas Eduardo de Oliveira; Figueira,Sérgio Rangel Fernandes. |
Abstract: The objective of this work was to estimate the coffee supply by calibrating statistical models with economic and climatic variables for the main producing regions of the state of São Paulo, Brazil. The regions were Batatais, Caconde, Cássia dos Coqueiros, Cristais Paulista, Espírito Santo do Pinhal, Marília, Mococa, and Osvaldo Cruz. Data on coffee supply, economic variables (rural credit, rural agricultural credit, and production value), and climatic variables (air temperature, rainfall, potential evapotranspiration, water deficit, and water surplus) for each region, during the period from 2000-2014, were used. The models were calibrated using multiple linear regression, and all possible combinations were tested for selecting the variables.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Climate; Econometrics; Modelling; Rural credit. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201158 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
Preckel, Paul V.. |
Mathematical measures of entropy as defined by Shannon (1948) and Kullback and Leibler (1951) are currently in vogue in the field of econometrics, primarily due to the comprehensive work by Golan, Judge, and Miller (1996). In this paper, an alternative interpretation of the entropy measure as a penalty function over deviations is presented. Using this interpretation, a number of parallels are drawn with least squares estimators, and it is demonstrated that, with a minor modification of the traditional least squares estimator, both approaches may be applied to the general linear model. The advantages and disadvantages of each approach are discussed, and a philosophical approach to the selection of estimation technique is suggested. |
Tipo: Working or Discussion Paper |
Palavras-chave: Entropy; Econometrics; Penalty functions; Estimation; Research Methods/ Statistical Methods. |
Ano: 1998 |
URL: http://purl.umn.edu/28625 |
| |
|
| |
|
|
Davis, Todd D.. |
The 2002 Farm Bill creates several opportunities for landowners to adopt management practices that protect and improve soil and water quality. Landowners considering enrollment in conservation programs must compare the monetary and nonmonetary costs and benefits from removing land from production agriculture. The overall purpose of this invited paper session was to improve the understanding of the factors affecting a landowner’s decision to enroll in conservation programs. Papers addressed the environmental benefits of conservation programs and compared the returns to enrolling in conservation programs to the returns from production agriculture. |
Tipo: Journal Article |
Palavras-chave: Certainty equivalents; Conservation; Econometrics; Government payments; Risk; Simulation; Q18; Q16; C15; C31. |
Ano: 2004 |
URL: http://purl.umn.edu/43417 |
| |
Registros recuperados: 23 | |
|
|
|