Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Henry De-Graft Acquah"'
Publikováno v:
Apstract: Applied Studies in Agribusiness and Commerce, Vol 11, Iss 1-2 (2017)
This paper introduces the semiparametric error correction model for estimation of export-import relationship as an alternative to the least squares approach. The intent is to demonstrate how semiparametric error correction model can be used to estima
Externí odkaz:
https://doaj.org/article/2a60b9bde9d24b5a9a132c2e96b9dc8a
Autor:
Henry De-Graft Acquah, Sarah Acquah
Publikováno v:
Apstract: Applied Studies in Agribusiness and Commerce, Vol 11, Iss 1-2 (2017)
This paper introduces interior point algorithm as an alternative approach to simplex algorithm for solving farm resource allocation problem. The empirical result of interior point algorithm is compared with that of the simplex algorithm. It goes furt
Externí odkaz:
https://doaj.org/article/b56a857df1f041bf96d93182025c7380
Autor:
Henry De-Graft Acquah
Publikováno v:
Apstract: Applied Studies in Agribusiness and Commerce, Vol 10, Iss 4-5 (2016)
This paper introduces the rank-based estimation method to modelling the Cobb-Douglas production function as an alternative to the least squares approach. The intent is to demonstrate how a nonparametric regression based on a rank-based estimator can
Externí odkaz:
https://doaj.org/article/2249e4dc2f9b4b22bf2a1ca965ce5a7d
Autor:
Henry de-Graft Acquah
Publikováno v:
Russian Journal of Agricultural and Socio-Economic Sciences, Vol 17, Iss 5, Pp 3-6 (2013)
The power of the Houck's model of asymmetry is examined via bootstrap and Monte Carlo techniques. The results of bootstrap and Monte Carlo simulations indicate that the power of the Houck's test for asymmetry depends on sample size, level of asymmetr
Externí odkaz:
https://doaj.org/article/9a2217561df845f3a7cde2ad559285be
Autor:
Henry de-Graft Acquah, Joseph Acquah
Publikováno v:
Russian Journal of Agricultural and Socio-Economic Sciences, Vol 15, Iss 3, Pp 73-78 (2013)
Alternative formulations of the Bayesian Information Criteria provide a basis for choosing between competing methods for detecting price asymmetry. However, very little is understood about their performance in the asymmetric price transmission modell
Externí odkaz:
https://doaj.org/article/f1283e44183f436b80905bceb41c12d4
Autor:
Henry de-Graft Acquah
Publikováno v:
Russian Journal of Agricultural and Socio-Economic Sciences, Vol 13, Iss 1, Pp 43-48 (2013)
Information Criteria provides an attractive basis for selecting the best model from a set of competing asymmetric price transmission models or theories. However, little is understood about the sensitivity of the model selection methods to model compl
Externí odkaz:
https://doaj.org/article/02a02da0a53749aba35125cf7eca8c2e
Autor:
Henry De-Graft Acquah
Publikováno v:
Russian Journal of Agricultural and Socio-Economic Sciences, Vol 11, Iss 11, Pp 33-36 (2012)
The power of the Granger and Lee (1989) model of asymmetry is examined via bootstrap simulation. The results of the bootstrap simulation indicate that the Granger and Lee model has low power in rejecting the null hypothesis of symmetric adjustments.
Externí odkaz:
https://doaj.org/article/5301d97bf8aa43fdb63c59fe73d3702b
Publikováno v:
Russian Journal of Agricultural and Socio-Economic Sciences, Vol 10, Iss 10, Pp 10-13 (2012)
Climate change tends to have negative effects on crop yield through its influence on crop production. Understanding the relationship between climatic variables and crop area on the mean and variance of crop yield will facilitate development of approp
Externí odkaz:
https://doaj.org/article/022700c65fad411cb7e5afc9e46c28ae
Publikováno v:
Apstract: Applied Studies in Agribusiness and Commerce, Vol 9, Iss 3 (2015)
This study investigates the long-run relationship between Ghana’s exports and imports for the period of 1948 to 2012. Using the Engle Granger two-step procedure we find that Ghana’s exports and imports are cointegrated. However, the slope coeffic
Externí odkaz:
https://doaj.org/article/55d02952a44d403aa4397f5e4d2f5859
Publikováno v:
Apstract: Applied Studies in Agribusiness and Commerce, Vol 8, Iss 2-3 (2014)
The study applies the single-stage modelling stochastic frontier approach to investigate the performance of maize farmers in the Ejura-Sekyedumase District of Ghana. It estimates the level of technical efficiency and its determinants for 306 maize fa
Externí odkaz:
https://doaj.org/article/9d64d76ef3744f738215edc841d26963