Agricultural Economics, 2014 (vol. 60), issue 12
AUTHORS INDEXIndex
editors
Agric. Econ. - Czech, 2014, 60(12):IV-V | DOI: 10.17221/7815-AGRICECON 
List of reviewers
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Agric. Econ. - Czech, 2014, 60(12):VI | DOI: 10.17221/7814-AGRICECON
VOLUME 60, CONTENTSIndex
editors
Agric. Econ. - Czech, 2014, 60(12):i-iii | DOI: 10.17221/7813-AGRICECON
Economic evaluation and design of control mechanisms to determine the concentration of juicesOriginal Paper
Jan Hron, Tomas Macak
Agric. Econ. - Czech, 2014, 60(12):539-545 | DOI: 10.17221/156/2014-AGRICECON
There is a significant attention paid to food analysis in the context of authenticity monitoring in the food industry. Although this has focussed increasingly on food safety and authenticity, the agro-food sector has also instituted requirements for the product identification, differentiation and historical monitoring. For the design and evaluation of the control mechanism, here is used the common approach for the design of experiments (DOE), specifically the "full factorial" design. The uniqueness of the solution lays in a geometric interpretation of the large variability the impedance, due to the samples provided by different producers. The presented...
Automatic discovery of the regression model by the means of grammatical and differential evolutionOriginal Paper
Jiří LÝSEK, Jiří ©«ASTNÝ
Agric. Econ. - Czech, 2014, 60(12):546-552 | DOI: 10.17221/160/2014-AGRICECON
In the contribution, there is discussed the usage of the method based on the grammatical and differential evolution for the automatic discovery of regression models for discrete datasets. The combination of these two methods enables the process to find the precise structure of the mathematical model and values for the model constants separately. The used method is described and tested on the selected regression examples. The results are reported and the obtained mathematical models are presented. The advantages of the selected approach are described and compared to the classical methods.
The career paths of agricultural workers: What is the impact of temporary contracts?Original Paper
Sonia BELLIT
Agric. Econ. - Czech, 2014, 60(12):553-569 | DOI: 10.17221/78/2014-AGRICECON
Agriculture, more than any other sector, is a provider of temporary jobs. The main aim of the paper is to analyze the impact of the temporary contract in agriculture on the probability of remaining employed in this sector. There is used a discrete-time competing risks duration model with two sub-samples, consisting of seasonal contracts and fixed-term contracts. The results show that while the probability of a worker finding a job increases with the number of temporary jobs already amassed in his or her career, this probability decreases with the number of interruptions in employment. There is also shown the effect of time dependence on the transition...
Comparative analysis of the food and nutrients demand in developing countries: The case of main vegetable products in South Asian countriesOriginal Paper
Muhammad Rizwan Yaseen, Irfan Mehmood, Qasim Ali
Agric. Econ. - Czech, 2014, 60(12):570-581 | DOI: 10.17221/28/2014-AGRICECON
Being the most populous countries of South Asia, India, Pakistan and Bangladesh together represent about 37% of the world total undernourished population. In the article, there are calculated the expenditure elasticities and the own and cross non-compensated price elasticities of main vegetable products of these countries by using the LA-AIDS model. There are used the elasticity estimates to decompose the recent demand fluctuations into price effect, income effect and population effect for each country. Then the ways for the government to improve the protein and energy intake after calculating the vegetable protein and calories elasticities are compared....