Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 79
Primeira ... 1234 ... Última
Imagem não selecionada

Imprime registro no formato completo
Willingness to Pay for a Potential Insurance Policy: Case Study of Trout Aquaculture AgEcon
Shaik, Saleem; Coble, Keith H.; Hudson, Darren; Miller, James C.; Hanson, Terrill R.; Sempier, Stephen H..
Using trout producer survey data and the contingent valuation method, we estimate willing-ness to pay for a potential insurance policy. The survey was conducted in 2005 across the United States; 268 producers completed the survey instrument, resulting in a response rate of 81 percent. Design of the contingent valuation method takes into account two coverage levels and four premium rates. Using standard willingness-to-pay techniques, we assess the premium rate that producers with varying practices and regions are willing to pay for two different cov-erage levels of insurance. In general, trout producers appear willing to pay premium rates of 2 to 11 percent for these coverage levels.
Tipo: Journal Article Palavras-chave: Willingness to pay; Subjective elicitation and survey data; Aquaculture trout insurance; Livestock Production/Industries; Risk and Uncertainty.
Ano: 2008 URL: http://purl.umn.edu/44737
Imagem não selecionada

Imprime registro no formato completo
ESTIMATING THE DEMAND OF CROP INSURANCE AND SUPPLY OF INDEMNITY PAYMENTS: NEBRASKA AGRICULTURE SECTOR AgEcon
Shaik, Saleem; Atwood, Joseph A..
The objective of this paper is to examine the potential impacts of crop insurance on farm economic structure using Nebraska agriculture sector data from 1980-1997. We estimate the system of input demand (output supply) equations including policy premium (policy indemnity) in order to examine the economic impacts of crop insurance.
Tipo: Working or Discussion Paper Palavras-chave: Risk and Uncertainty.
Ano: 2000 URL: http://purl.umn.edu/21795
Imagem não selecionada

Imprime registro no formato completo
Evaluating the Competitive Effects of the Commodity Groups Originated by Class I Railroads in the United States AgEcon
Allen, Albert J.; Myles, Albert E.; Shaik, Saleem; Yeboah, Osei-Agyeman.
Dynamic shift-share analysis reveals that national growth effects were positive while industrial mix, competitive, and allocation effects were negative. Results also show the time(technology) variable were significantly and positively related to the competitive effects for coal, chemical products, food products, nonmetallic products, petroleum products, metallic ores, and other products.
Tipo: Conference Paper or Presentation Palavras-chave: Dynamic shift-share; Competitive effects; Commodity Groups; Class I railroads; Agribusiness; Industrial Organization; L1; L9; L92.
Ano: 2010 URL: http://purl.umn.edu/56409
Imagem não selecionada

Imprime registro no formato completo
Impact of Entry and Exit on Agribusiness-Trucking Industry Efficiency: Stochastic Frontier Analysis AgEcon
Allen, Albert J.; Shaik, Saleem.
In this paper, the impact of entry and exit of firms on the overall efficiency of the industry is examined in the efficiency framework, using agribusiness-trucking firms for the period 1994-2003. Specifically, industry efficiency is compared with and without firms that enter and exit using panel stochastic frontier analysis.
Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness.
Ano: 2006 URL: http://purl.umn.edu/35413
Imagem não selecionada

Imprime registro no formato completo
Southeast Asian Agriculture Returns to Scale: Inferences from Cumulative Rolling Stochastic Frontier Analysis AgEcon
Xu, Zhen; Tu, Wen; Shaik, Saleem.
In this paper, we estimate the time-varying betas or input elasticities and returns to scale in a stochastic frontier cumulative rolling regression analysis framework using FAO data of Southeast Asian countries from 1960-2002. Empirical results indicated returns to scale are overestimated by pooled and panel models relative to stochastic frontier models without accounting for technical inefficiencies. Second, the time-varying estimates of betas or input elasticities and returns to scale indicate variations not only between the models but also over time.
Tipo: Conference Paper or Presentation Palavras-chave: Southeast Asian countries; Agriculture sector; Time-varying betas or input elasticities and returns to scale; Panel data; 1960-2002; Farm Management; Productivity Analysis.
Ano: 2007 URL: http://purl.umn.edu/9687
Imagem não selecionada

Imprime registro no formato completo
INTERTEMPORAL AND INTERSPATIAL VARIABILITY OF CLIMATE CHANGE ON DRYLAND WINTER WHEAT YIELD TRENDS AgEcon
Shaik, Saleem; Helmers, Glenn A..
The importance of climate (temperature and precipitation) variability on Nebraska dryland winter wheat yield trend is examined. The use of short term (1956-1999) climatic divisional panel data (interspatial) and long term (1909-1999) state time series data (intertemporal) is to address the predictability power of estimating the yield trends accounting for climate variability.
Tipo: Conference Paper or Presentation Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2000 URL: http://purl.umn.edu/21782
Imagem não selecionada

Imprime registro no formato completo
Impact of Ethanol Policies on Livestock Production in the United States AgEcon
Miljkovic, Dragan; Shaik, Saleem; Braun, Dane.
This study was conducted to analyze the direct and indirect effects of ethanol policy on livestock production. Results of the theoretical model indicate the possibility of ethanol policy indirectly affecting livestock production. Econometric results show a possibility of ethanol policy indirectly impacting cattle production through the RFS’s influence on corn quantity. Policy makers’ intentions with ethanol policy likely were to increase ethanol consumption rather than to directly affect cattle production. However, results of the reduced form equation indicate that the RFS increased the cattle quantity, which represents a direct outcome of ethanol policy on cattle production. Policy makers can utilize the information provided in this study to...
Tipo: Conference Paper or Presentation Palavras-chave: Livestock Production; Ethanol Policies; Agricultural and Food Policy; Demand and Price Analysis; Livestock Production/Industries; Production Economics; Q17.
Ano: 2011 URL: http://purl.umn.edu/98783
Imagem não selecionada

Imprime registro no formato completo
Role of Panel Analysis in Identifying Asymmetric Information with Optional Unit Provision in Federal Crop Insurance AgEcon
Shaik, Saleem.
This paper has a two-fold contribution, first we demonstrate the relationship of spatial, temporal and residual yield risk estimated from a two-way panel random effects model to asymmetric information with an optional unit provision in the federal crop insurance program. Second, the yield risk components are incorporated in a discrete choice model to examine the presence of asymmetric information due to potential yield switching with optional unit provisions. Empirical application to 1998 U.S. cotton crop insurance data reveals the presence of asymmetric information with optional unit provisions.
Tipo: Report Palavras-chave: Adverse Selection; Moral Hazard; Optional Unit Policy; Crop Insurance; U.S. Cotton; Crop Production/Industries; Demand and Price Analysis; D82; G22; Q10.
Ano: 2009 URL: http://purl.umn.edu/54983
Imagem não selecionada

Imprime registro no formato completo
Demand Analysis for Shrimp in the United States AgEcon
Zhou, Xia (Vivian); Shaik, Saleem.
This paper analyzes the demand for shrimp along with beef, pork, and chicken in the US food market, which contributes much to predicting supply strategies, consumer preferences and policy making. It focuses on the own and cross relationship between the expenditure share and price, income changes. An Almost Ideal Demand System (AIDs) model and two alternative specifications are used to estimate a system of expenditure share equations for shrimp, beef, pork, and chicken. Empirical results indicated that some insignificant slope coefficients and inappropriate signs of them did not comply with microeconomic theory. This could be caused by heteroscedasticity, autocorrelation, a limitation in the data used, or shrimp is a commodity that is quite different.
Tipo: Conference Paper or Presentation Palavras-chave: Expenditure share; Own and cross relationship; Almost Ideal Demand System (AIDs); Heteroscedasticity; And autocorrelation; Demand and Price Analysis.
Ano: 2008 URL: http://purl.umn.edu/6524
Imagem não selecionada

Imprime registro no formato completo
Importance of Financial Variables on Efficiency of Class I Railroads in the United States AgEcon
Shaik, Saleem; Allen, Albert J.; Myles, Albert E.; Yeboah, Osei-Agyeman.
This study evaluates the consequences of financial variables on the efficiency of Class I railroads in the United States for the period 1996-2006. A panel stochastic frontier analysis is used to simultaneously estimate the stochastic frontier model and financial ratio model with output and efficiency measures as endogenous variables. Results show the average efficiency measures was 83 percent across six major class I railroads. The Burlington Northern-Santa Fe was most efficient and Norfolk Southern the least efficient for the period, 1996-2006.
Tipo: Conference Paper or Presentation Palavras-chave: Public Economics.
Ano: 2008 URL: http://purl.umn.edu/6874
Imagem não selecionada

Imprime registro no formato completo
Demand for Optional Units in Crop Insurance AgEcon
Shaik, Saleem; Atwood, Joseph A..
This article demonstrates the importance of temporal-spatial yield, acreage and price risk apart from price in addressing the importance of optional unit provision in Federal crop insurance program. Specifically, based on 1998 U.S. cotton producers data, the demand for optional versus basic unit is examined using binomial logit model.
Tipo: Conference Paper or Presentation Palavras-chave: Risk and Uncertainty.
Ano: 2003 URL: http://purl.umn.edu/21890
Imagem não selecionada

Imprime registro no formato completo
Aggregation Issues in the Estimation of Linear Programming Productivity Measures AgEcon
Shaik, Saleem; Mishra, Ashok K.; Atwood, Joseph A..
This paper demonstrates the sensitivity of the linear programming approach in the estimation of productivity measures in the primal framework using Malmquist productivity index and Malmquist total factor productivity index models. Specifically, the sensitivity of productivity measure to the number of constraints (level of dis-aggregation) and imposition of returns to scale constraints of linear programing is evaluated. Further, the shadow or dual values are recovered from the linear program and compared to the market prices used in the ideal Fisher index approach to illustrate sensitivity. Empirical application to U.S. state-level time series data from 1960-2004 reveal productivity change decreases with increases in the number of constraints. Further,...
Tipo: Report Palavras-chave: Aggregation; Share-weights; Single and multiple output and input; Malmquist productivity index; Malmquist total factor productivity index; Agribusiness; Production Economics.
Ano: 2011 URL: http://purl.umn.edu/101783
Imagem não selecionada

Imprime registro no formato completo
Risk Adjusted Productivity Measures AgEcon
Glazyrina, Anna; Shaik, Saleem.
Tipo: Conference Paper or Presentation Palavras-chave: Risk; Productivity measures; DEA; Hyperbolic distance function; Panel data; Productivity Analysis; Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/56580
Imagem não selecionada

Imprime registro no formato completo
Do Farm Programs Explain Mean and Variance of Technical Efficiency? Stochastic Frontier Analysis AgEcon
Ranjan, Rahul; Shaik, Saleem; Mishra, Ashok K..
Past literature has examined the importance of farm programs on the volatility and returns on general and agriculture economic growth. The objective of this study was to assess the impact of farm program payments on technical efficiency. The study used aggregate state level panel data from the U.S agricultural sector. Results indicate production increasing with increasing units of inputs. Results from this study indicate that farm program payments play an important role in technical efficiency. For example, farm program payments indicate a negative and positive effect on mean and variance of technical efficiency in the long-run and short-run, respectively
Tipo: Conference Paper or Presentation Palavras-chave: Production Economics; Productivity Analysis; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/56365
Imagem não selecionada

Imprime registro no formato completo
Measurements of Agricultural Productivity and Efficiency Gains from NAFTA AgEcon
Yeboah, Osei-Agyeman; Gunden, Cihat; Shaik, Saleem; Allen, Albert J.; Li, Tongzhe.
The primary objective of this study is to empirically determine whether North American Free Trade Agreement (NAFTA) has contributed to increased agricultural productivity in any of its member countries. Implementation of the NAFTA began on January 1, 1994. This agreement removed most barriers to trade and investment among the United States, Canada, and Mexico, in which all non-tariff barriers to agricultural trade between these countries were eliminated. Data Envelopment Analysis (DEA) and the Malmquist Productivity Index were used to estimate the total factor productivity change, technical change, and efficiency change of agricultural production for each NAFTA country. Then, using time series data, the efficiency changes in countries were compared to...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural Efficiency; Data Envelopment Analysis; Malmquist Index; NAFTA; Total Factor Productivity; International Relations/Trade.
Ano: 2011 URL: http://purl.umn.edu/98726
Imagem não selecionada

Imprime registro no formato completo
Succession Decisions in U.S. Family Farm Businesses AgEcon
Mishra, Ashok K.; El-Osta, Hisham S.; Shaik, Saleem.
Farm transfer or succession by the “next generation” holds a place of central importance in the determination of industry structure and total number of farmers and has profound implications for farm families. The family farm sector relies heavily on intergenerational succession. Succession and retirement are linked and reflective of the life cycles of the farm household and the farm business. A large farm-level data set and a logistic regression model were used to examine the determinants of farm succession decisions in the United States, with special emphasis given to the treatment of endogenous wealth and farm size variables. Results point to the importance of farmer’s age, educational attainment of farm operators, off-farm work by the operator or...
Tipo: Journal Article Palavras-chave: Education; Endogeneity; Farm household wealth; Farm transfer; Household income; Intergenerational succession; Life cycle; Logit model; Off-farm work; Farm Management; Labor and Human Capital.
Ano: 2010 URL: http://purl.umn.edu/61055
Imagem não selecionada

Imprime registro no formato completo
An Assessment of the Efficiency of Agribusiness Trucking Companies: A Data Envelopment Analysis Approach AgEcon
Shaik, Saleem; Allen, Albert J.; Estrada, Joselito K..
The purpose of this study is to investigate the issue of efficiency in the U.S. motor carrier industry using DEA and SFA. While both methods used the same variables, the resulting efficiency scores were significantly different. This leads to the question of which method is a better measure of efficiency.
Tipo: Conference Paper or Presentation Palavras-chave: Public Economics.
Ano: 2005 URL: http://purl.umn.edu/35661
Imagem não selecionada

Imprime registro no formato completo
The Impact of Trade Openness on Technical Efficiency in U.S. Agriculture AgEcon
Miljkovic, Dragan; Shaik, Saleem.
This study addresses the impact of trade openness on technical efficiency in the U.S. agricultural sector. The results indicate that trade protectionism illustrated with a decrease in the share of agricultural imports in agricultural GDP led to an increase in technical efficiency. A change in the share of agricultural exports in agricultural GDP had no impact on technical efficiency. These results are partially consistent with the premise of the new trade theory, but also seem to be driven by the intricacies of the agricultural sector and agricultural policy in the US and internationally.
Tipo: Conference Paper or Presentation Palavras-chave: Agriculture; Technical Efficiency; Trade Openness; United States; International Relations/Trade; Production Economics; Q17.
Ano: 2010 URL: http://purl.umn.edu/56334
Imagem não selecionada

Imprime registro no formato completo
Does Accounting for Inefficiency Affect the Time-Varying Short and Long-Run Returns to Scale? AgEcon
Shaik, Saleem.
The returns to scale for nineteen South Asian countries are estimated using window and cumulative rolling stochastic frontier regression analysis. The stochastic frontier analysis accounts for technical inefficiency of Hicks non-neutral technology production function in the estimation of the returns to scale. The window rolling regression and cumulative rolling regression allows the estimation of short and long run time-varying returns to scale, respectively. Empirical application to Asian agriculture sector using Food and Agricultural Organization data from 1961-2008 indicates returns to scale are under (over) estimated by the traditional panel models in the short (long) run time-varying estimation. The time-varying estimates of returns to scale indicate...
Tipo: Conference Paper or Presentation Palavras-chave: Asian agriculture sector; Stochastic frontier analysis; Window and cumulative time-varying input elasticities and returns to scale; One-way fixed effect; 1961-2008; Agribusiness.
Ano: 2011 URL: http://purl.umn.edu/115521
Registros recuperados: 79
Primeira ... 1234 ... 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