Petr BendaPavel ŠimekJan MasnerJiří Vaněk
DOI: 10.7160/aol.2017.090401
No 4/2017, December
pp. 3 - 13
ABSTRACT
The aim of the eAGRI portal is to inform not only professionals in the field of agriculture but also the general
public about current events and news in the respective resort. Merit of the paper is to discover if the current
level of eAGRI portal ergonomics is sufficient or not. Several usability analysis and studies were applied
with unflattering results. The results of all applied analysis show that the overall ergonomics of the portal is
not at a satisfactory level and that there is no significant imp rovement on the portal in the last year.
KEYWORDS
Ergonomics, Usability Analysis, eAGRI portal, Human-Computer Interface, Five second test, Thirty second test, Heuristic evaluation, First click test.
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Michal ČermákKarel MalecMansoor Maitah
DOI: 10.7160/aol.2017.090402
No 4/2017, December
pp. 15 - 24
ABSTRACT
This paper is focused on the modelling of volatility in the agricultural commodity market, specifically
on wheat. The aim of this study is to develop an applicable and relevant model of conditional heteroscedasticity
from the GARCH family for wheat futures prices. The GARCH (1,1) model has the ability to capture
the main characteristics of the commodity market, specifically leptokurtic distribution and volatility
clustering. The results show that the forecasted volatility of wheat has a tendency towards standard error
reversion in the long-run and the position of price distribution is closed to the normal distribution. The wheat
production can be hedged against the price variability with long-term contracts. The price of wheat was
influenced during the years of 2005 to 2015 by different events, in particular; financial crisis, increasing grain
demand and cross-sectional price variability. The results suggest that agricultural producers should focus
on short-term structural events the wheat market, rather than long-term variability.
KEYWORDS
Price volatility, forecasting, GARCH, wheat price, CME, futures contracts.
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Imre Fertő
DOI: 10.7160/aol.2017.090403
No 4/2017, December
pp. 25 - 32
ABSTRACT
The paper investigates the impacts of economic crisis on the duration of word wine exports for 40 leading
wine exporter countries between 2000 and 2012. We analyze three attributes of wine exports embodied
in exports relationships: the initial value of exports, the growth of exports within a spell, and the hazard
of exports ceasing. Our results indicate that wine exports are rather short lived even for leading wine exporter
countries. Our estimations imply that economic crisis has not significant impacts on initial value of wine
export starting before crisis, whilst it has negative effects on spells beginning after crisis. However, economic
crisis does not influence the export growth, and decrease the pr obability of failure of wine exports.
KEYWORDS
Duration of world wine exports, economic crises, leading wine exporters.
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Zdeňka Gebeltová
DOI: 10.7160/aol.2017.090404
No 4/2017, December
pp. 33 - 44
ABSTRACT
The primary objective of the paper is to assess the extent and exploitation of agricultural land in the CR
and EU countries based on selected macro-socioeconomic indicators in order to determine the position
of the CR and future desirable exploitation, protection and stabilisation of agricultural land in the CR.
The following methods will be employed in order to meet the objective: (1) The Coefficient of Geographical
Association (CGA) and my own modified coefficients of association reflecting the impact of exploitation
of agricultural land on indicators of the country’s economic level. (2) Comparison (shrinkage of agricultural
land, workforce in agriculture and market price of agricultural land in selected countries). (3) The Coefficient
of Ecological Stability to assess the extent of stable and unstable areas in EU-27 countries. The following
data are used for calculations: Eurostat (2009, 2015), World Bank and FAOSTAT (1993-2014). The extent
of agricultural land in the CR (2014/1993) has been decreasing more slowly than in the detailed comparison
countries (5 countries with the lowest CGA). The price of the agricultural land (2014) is lower than in France,
Germany and Poland; nevertheless, the actual price rates are not as contrasting against these countries
if purchase parity is considered. The Coefficient of Ecological Stability ranks the Czech Republic in the second
half of the list of EU-27 countries (22nd place). While the ecological stability of land has decreased slightly
in Germany and France (2009-2015), an improvement has occurred in the CR.
KEYWORDS
Agricultural land fund, the Coefficient of Geographical Association, agricultural land loss, the Coefficient of Ecological Stability, land price.
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Marcela HallováPeter PolakovičIvana Slováková
DOI: 10.7160/aol.2017.090405
No 4/2017, December
pp. 45 - 52
ABSTRACT
Lately lifelong learning has become an integral part of the whole society. This is also the reason
for the greatest development of new concepts serving just the implementation of lifelong learning policy.
These changes in the process of continuous education are in practice much more than a comprehensive
adaptation of the education system, which is why this trend is currently understood mainly in the developed
countries of the world as a response to the changing labor market. Lifelong learning thus provides individuals
with a better perspective and at the same time increases the chances of an organization in which they succeed
and differentiate themselves on a global scale. That is why we can designate lifelong learning, learning
and constant improving as an essential part of the development of managers. Education and training
of human resources in organizations form a significant part of lifelong learning. Employee training focuses
on shaping individuals, their skills and increasing their competitiveness on the global market. In today's
turbulent and difficult-to-anticipate period, educational activities in management and training are important.
This brings the ever-increasing demands for expanding, specialized and retraining education and thus
the constant demand for new and more efficient forms of educatio n.
KEYWORDS
Information and communication technologies, business performance, manager, educating of managers.
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Viet Van HoangKhai Tien TranBinh Van TuVinh Ngoc NguyenAn Quynh Nguyen
DOI: 10.7160/aol.2017.090406
No 4/2017, December
pp. 53 - 67
ABSTRACT
This study measures the static and dynamic agricultural competitiveness of Vietnam by the RCA
and the NRCA. The dynamics of the trade competitiveness indicators are assessed in three ways: OLS
regression, Markov matrices, and trend analysis. The paper, moreover, tests the consistency between the RCA,
NRCA, and RTA indices. The results show that (i) Vietnam, generally, achieves strong competitiveness in crop
and fishery sectors whilst it has weak competitiveness in livestock and processed food sectors; (ii) the country
has the convergent pattern of agricultural competitiveness with the high stability of strong competitive
and uncompetitive sectors; (iii) the country’s agricultural export strategy and competitiveness pattern are based
on the natural-resource-intensive and traditional agricultural products with a slight improvement over time;
and (iv) the RCA, NRCA, and RTA indices are strongly consistent in identifying the degrees of competitiveness
and determining whether a country obtains competitiveness while they are weakly consistent in ranking
competitiveness.
KEYWORDS
Vietnam, Agriculture, Competitiveness, RCA, NRCA, Dynamics, Consistency.
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Jana KřečkováJan RydvalHelena BrožováAndrea Hornická
DOI: 10.7160/aol.2017.090407
No 4/2017, December
pp. 69 - 79
ABSTRACT
Many publications describe problems in businesses and project management that are caused by communication.
Team communication is a very complicated process full of soft aspects. One of basic problems represents
a choice of an appropriate communication route kind useful for messages transmission between the team
members as sources and recipients. It is a complex issue because of necessity to evaluate individual
communication routes from many different perspectives. Therefore the suitable communication route of team
members can be selected by a multicriterial mathematical model. Since communication can be understood
as a distribution of messages, the appropriate model form can be based on the distribution model. The proposed
model is derived from the three-dimensional transportation problem. The article discusses the possibility
of this approach on the case study of communication modelling in the field of agriculture. Specifically, it is
constructed and solved a model of communication problem for small team of agriculture equipment dealers.
KEYWORDS
Team, communication, message, communication route, three-dimensional transportation model, agriculture equipment dealers.
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Libuše SvatošováJana Köppelová
DOI: 10.7160/aol.2017.090408
No 4/2017, December
pp. 81 - 89
ABSTRACT
Many authors all over the world attempt to perform time series analyses (at differing levels of expertise)
in their published works. Knowledge of quantitative information is necessary for decision making in any
domain. Therefore, it is more desirable to enter this field of problems and examine and develop everything
that has been offered by these modern methodologies. In time series forecasting, the extrapolation methods
are applied most frequently in practice. Currently, the combined models have been increasingly employed
in experiments – these represent an aggregation of prognoses obtained from various separate models.
The study presented is aimed at such new approaches, i.e. the construction of combined prediction models
that are more realistic, more flexible and more concise in the time series modelling. This paper focuses
on a subsequent assessment of combined prognoses constructed and a comparison of these with selected
separate models having participated in the aggregate prognoses making. In order to obtain an efficient product,
the Time Series Forecasting System (TSFS) component has been employed, being a component of the SAS
programme system. For quality assessment of the models constructed, the assessment criteria selected
in advance have been applied. The results of this empirical study have shown that in the domain of estimation
of future foodstuffs consumption development, the techniques illustrated in this paper by examples
of long-term time series from foodstuffs consumption area in the Czech Republic (CR), can be employed
with success. This way represents a suitable supplement to complex econometric models.
KEYWORDS
Foodstuffs consumption in the Czech Republic, time series analysis, exponential smoothing models, Box-Jenkins methodology, combined forecasting models.
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Edita ŠilerováKlára HennyeyováRobert MichálekEva KánskáJan Jarolímek
DOI: 10.7160/aol.2017.090409
No 4/2017, December
pp. 91 - 98
ABSTRACT
The article examines the influence of the existence of an information system and the existence
of an information strategy for the management of information systems and information and communication
technologies in the company. Two hypotheses have been identified: H1 - in the monitored sample
of enterprises there is an increasing tendency of the existing department of informatics, as a separate unit
and H2 - monitored respondents are used to manage information systems and information and communication
technologies created information strategy. The article was developed based on scientific methods - using
holistic methodology, analysis, synthesis, induction and deduction. The established hypotheses were verified
by a questionnaire survey. The questionnaire survey was supplemented by direct questioning. The established
hypotheses were not confirmed.
KEYWORDS
Information systems, information and communication technologies, informatics management, information strategy.
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Ondřej ŠkubnaJaroslav HomolkaAnna Vladimirovna Belova
DOI: 10.7160/aol.2017.090410
No 4/2017, December
pp. 99 - 108
ABSTRACT
The main objective is to verify whether it is possible to confirm differences in price policy not only
in the division of chains according to the format of the shops but also in relation to Czech and foreign
food and whether these findings can be clearly identified. The partial objective is to find the difference
between Czech and foreign products in the context of chain approach according to other criteria
such as price differences among products and among chains. There are eleven chains evaluated
in the tables as well as 29 relevant food groups. The used underlying data is based on the data processed
from the primary data obtained by the data collection in the retail chains. The average number
of observations of one item, which is about 43 observations, of which 37 observations of Czech products
and about 29 products with price. Only Lidl has a higher number of price observations from the total
number of observations of foreign products. In the area of price policy evaluation (whether it is possible
to confirm the differences not only in the division of the chains according to the format of the stores, but also
in relation to Czech and foreign foods and identify clearly these findings), the difference is considered mainly
according to the "low price“ of food and it can be said that there are noticeable differences among the chains,
which also confirm different approach to Czech and foreign food and differences according to the format
of chain stores. This paper originated in the context of the exploratory study „Prices of selected Czech
and foreign food products in retail chains in November 2016“. The study was created for the needs
of the Ministry of Agriculture of the Czech Republic.
KEYWORDS
Foodstuffs, Czech products, foreign products, retail chain, price, format of stores, foodstuff offer, foodstuff price, price policy.
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Jaromír ŠtůsekKarel KubataVladimír Očenášek
DOI: 10.7160/aol.2017.090411
No 4/2017, December
pp. 109 - 122
ABSTRACT
The article discusses the issue of the use of information technology in the search for potential competitive
advantages in agricultural companies. Information technology in agriculture should provide a clearly defined
benefit for the management’s decision-making. If information technology is not being used to its full potential
and if the results are interpreted incorrectly, the overall impact may be damaging to the position of companies
in the competitive environment. Investment in information technology requires considerable sums that
should return in the form of faster and better decision-making in which digitalized corporate processes play
a complex role. Strategic decision-making concerning investments in information technology in various
types of agricultural businesses varies depending on their size, focus, economic situation etc. In the context
of the current state of agriculture in the Czech Republic and after a detailed analysis of available literature,
the authors conclude that the issues of quality of information technology have not yet been systematically
examined and resolved in Czech agricultural companies. For this reason, they consider it fruitful to focus
their attention on this subject. The main objective of the paper is to develop and apply a methodological
model for evaluating the quality of information technology in an agricultural business. In addition, we want
to examine the broader impact of the criterion of IT quality from the perspective of its strategic importance
for competitiveness and the extent to which it supports strategic management in practice.
KEYWORDS
Strategy, decision-making in management, competitiveness, information technology, information processes, IT quality evaluation, methodological model.
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Jan Tyrychtr
DOI: 10.7160/aol.2017.090412
No 4/2017, December
pp. 123 - 129
ABSTRACT
Data processing is an important aspect of business decision support systems (DSS). A good analytical
system to process these data is essential to implement as a primary pillar for the development of complex
expert systems. Businesses themselves are constantly confronted with deciding on investment opportunities
to improve their performance. An important criterion for selecting investment is its profitability which cannot
be easily determined when investing in analytical systems. Currently, there are two types of approaches
to evaluating investments into information systems: normative and positive approaches. The simplest form
of decisional analytical modeling is the decision tree (normative approach). The purpose of the article
is to illustrate decision tree analysis as a component of an analytical system for evaluating two decision
alternatives. The test case is demonstrated on an example of decision-making in agriculture.
KEYWORDS
Analytical system, decision tree, decision rules, economic value, agriculture.
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