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Comparing Parametric and Nonparametric Regression Methods for Panel Data: the Optimal Size of Polish Crop Farms

Czekaj, Tomasz Gerard; Henningsen, Arne - Institut for Fødevare- og Ressourceøkonomi, … - 2012

Translog functional form implies an implausible linear relationship between the (logarithmic) firm size and the elasticity of …

Persistent link: https://www.econbiz.de/10010583806

Panel Data Nonparametric Estimation of Production Risk and Risk Preferences: An Application to Polish Dairy Farms

Czekaj, Tomasz Gerard; Henningsen, Arne - Institut for Fødevare- og Ressourceøkonomi, … - 2013

We apply nonparametric panel data kernel regression to investigate production risk, out-put price uncertainty, and risk attitudes of Polish dairy farms based on a firm-level unbalanced panel data set that covers the period 2004–2010. We compare different model specifications and different...

Persistent link: https://www.econbiz.de/10010709599

Panel Data Specifications in Nonparametric Kernel Regression: An Application to Production Functions

Czekaj, Tomasz; Henningsen, Arne - Institut for Fødevare- og Ressourceøkonomi, … - 2013

We discuss nonparametric regression models for panel data. A fully nonparametric panel data specification that uses the time variable and the individual identifier as additional (categorical) explanatory variables is considered to be the most suitable. We use this estimator and conventional...

Persistent link: https://www.econbiz.de/10010822723

Estimating Farm Efficiency in the Presence of Double Heteroscedasticity Using Panel Data

Guermat, Cherif; Hadri, Kaddour; Whittaker, Julie M. - 2015

inefficiencies are sensitive to specification errors. One source of such errors is heteroscedasticity. This paper addresses this … issue by extending the Hadri (1999) correction for heteroscedasticity to stochastic production frontiers and to panel data …. It is argued that heteroscedasticity within an estimation can have a significant effect on results, and that correcting …

Persistent link: https://www.econbiz.de/10014028978

Doubly Heteroscedastic Stochastic Production Frontiers with an English Cere al Farms.

Hadri, K.; Guermat, C.; Whittaker, J. - Business School, University of Exeter - 1998

. The extended correction for heteroscedasticity is supported by the data. The study uses data on 102 mainly cereal farms in …

Persistent link: https://www.econbiz.de/10008852251

A metafrontier analysis on the performance of grain-producing regions in Norway

Alem, Habtamu - In: Economies : open access journal 9 (2021) 1/10, pp. 1-10

Previous application of the stochastic frontier model and subsequent measurement of the performance of the crop sector can be criticized for the estimated production function relying on the assumption that the underlying technology is the same for different agricultural systems. This paper...

Persistent link: https://www.econbiz.de/10012483225

Bayesian treatments for panel data stochastic frontier models with time varying heterogeneity

Liu, Junrong; Sickles, Robin C.; Tsionas, Efthymios G. - In: Econometrics : open access journal 5 (2017) 3, pp. 1-21

This paper considers a linear panel data model with time varying heterogeneity. Bayesian inference techniques organized around Markov chain Monte Carlo (MCMC) are applied to implement new estimators that combine smoothness priors on unobserved heterogeneity and priors on the factor structure of...

Persistent link: https://www.econbiz.de/10011711007

Identifying Different Technologies Using a Latent Class Model : Extensive Versus Intensive Dairy Farms

Alvarez, Antonio - 2010

In this article, we use a stochastic frontier latent class model to estimate the technology of dairy farms according to their degree of intensification. The results are compared with a model which assumes that the technology is common to all farms. The empirical analysis uses data on a balanced...

Persistent link: https://www.econbiz.de/10013142909

Heteroscedasticity and non-monotonic efficiency effects of a stochastic frontier model

Wang, Hung-Jen - Volkswirtschaftliche Fakultät, … - 2002

We consider a model that provides flexible parameterizations of the exogenous influences on inefficiency. In particular, we demonstrate the model's unique property of accommodating non-monotonic efficiency effect. With this non-monotonicity, production efficiency no longer increases or decreases...

Persistent link: https://www.econbiz.de/10009025310

Estimating Farm Efficiency in the Presence of Double Heteroscedasticity Using Panel Data

Hadri, Kaddour; Guermat, Cherif; Whittaker, Julie - 2003

Persistent link: https://www.econbiz.de/10009445692