József Popp

University of Debrecen · Economics and business

The state of global food security has been considerably improved in the last decades; however, these achievements are attributable to the “green revolutions” in Latin-America and Asia. The food shortage has remained persistent in Sub-Saharan Africa, where the proliferation of undernourishment is nearly 30%. There are a large number of studies inves...

A termelési szerkezetben a szántóföldi növénykultúrák 4,3 millió hektár területének 48%-át a búza és kukorica foglalták el 2016-ban. A piacvezető országok hozamától a hazai átlagok normál évjáratot tekintve is a kukorica esetében 20-30%-kal, a búzánál 40-45%-kal térnek el. A búza termőterülete a 2004-2016 évek között 0,97-1,17 millió hektár között...

For agriculture, precision farming represents the future-by increasing incomes and reducing the environmental burden at the same time. Precision management produces surpluses in yields, revenue, and profits, but not immediately. The additional income potential is expected to increase by 20% to 50%. Farmers mostly introduce precision farming in orde...

The main goal of the paper is to assess the market risk sources of small and medium-sized enterprises in the V4 and Serbia according to the business environment of the countries analyzed. To achieve this goal, a questionnaire-based survey was carried out involving 1,905 small and medium-sized enterprises in these countries. Market risk sources incl...

Absztrakt. A mezőgazdaság számára a precíziós gazdálkodás jelentheti a jövőt, hiszen egyszerre járhat a jövedelmek növelésével és a környezetterhelés mérséklésével. A precíziós gazdálkodás statisztikailag igazolható többletet termel hozamban, bevételben, eredményben, de nem azonnal. A többletjövedelem potenciál 20-50% között várható. A precíziós ga...

This paper examines the thermal properties of free-standing, ground-installed, south-facing crystalline and amorphous silicon photovoltaic modules, the remaining energy and the energy generation of the modules, in ideal and actual summer weather conditions. This work studies the algorithms in other studies used to describe the thermal processes occ...

The aim of the study is to compare the tilt angle-orientation and dual-axis tracking characteristics of mono-(m-Si), polycrystalline (p-Si), and amorphous silicon (a-Si) modules in the summer of 2017, under real meteorological conditions with simulated data. The most important new element of our study is that, besides a comparison of the three most...

A szerzők kutatási célkitűzése, hogy megvizsgálják a napjainkban megfigyelhető nagyarányú népességvándorlással kapcsolatos eseményeket, azok kiváltó okát és prediktív hatását a felsőoktatásban tanuló egyetemi hallgatók, doktoranduszok által felállított és képviselt attitűdjein keresztül. A megkérdezettek csoportját, azaz a mintát, 425 fő a magyar f...

In the enlargement process, the agriculture and food sector merits particular attention because trade and policy issues between the candidate countries and the EU are more important in this sector than in any other. In 2001, Hungarian agriculture’s contribution to GDP was 4.5 percent and agriculture represented 6.2 percent of the total employment....

In Hungary, after the political and economical transition period of the nineties, the transformation of agriculture, the privatisation and the partial compensation brought about fundamental change in the land ownership structure. Recently, the private ownership of land has become dominant. As a result of the land compensation and the restoration of...

Defining the appropriate ranking distance measures among rankings is a classic area of study. The goal of our work is to identify a combination of methodologies, which is proven to be capable for the determination of a proper ranking system. In our study, we used 3 well-established metrics: Kendall tau, Spearman footrule, and Cayley distance and a...

This study of the international characteristics of the macro-logistics system of freight villages is a first overview of the subject, which has not previously been available. The study is divided into four parts. The first part describes the empirical method of the study and introduces the databases which were set up. The second and most relevant p...

Many German dry ports have already been successfully established and positioned in the past; however, several questions may arise. Can they keep pace with latest standards? Can they maintain their strong capabilities or are there locations in Europe, of whose achievements German dry ports can still 'learn'? What impulses come in turn from the Germa...

Deutsche GVZ-Gesellschaft (DGG) establishes the first ranking of Freight Villages (dry ports) throughout Europe. The study assesses the level of development of the European Freight Villages by a method oriented on the benchmarking approach. The results of this process build the first ranking of Freight Villages (FV) on an European level. The study...

The goal of this study is to investigate the cause of a growing food price volatility. We analyse whether food price volatility is mainly induced by transfer of the oil price shock or if it is the consequence of a rising and competitive biofuel production. Furthermore, we evaluate the impact of biofuels on land use as well. Food prices have lately...

Az élelmiszer-biztonság kulcsfontosságú a húsipari cégek versenyképességének megtartásához. A termékek nyomon követhetőségét a különböző vonalkód rendszerek, elektronikus és biológiai azonosítók, valamint ezeknek a technológiák kombinációjával lehet garantálni. Kutatásunk során elemeztük az azonosítási lehetőségek karakterisztikáját, célunk volt me...

Absztrakt: Kutatásunk során a családi gazdálkodásról szóló cikkek szerzőinek kapcsolati hálózatát elemeztük. A kapcsolatháló elemzés definíciója alapján makro szinten tettük ezt, hiszen ez vizsgálja az egyének közötti kapcsolatokat, illetve a közöttük lévő interakciókat. A minta alapját az 1976-2016 között ebben a témában írt 254 tudományos cikk ad...

The article analyses co-authorship and co-citation networks in the Journal of Food Policy that is the most important agricultural policy journal in the field of the agricultural economics literature. The paper highlights the principal researchers in this field together with their authorship and citation networks on the basis of 714 articles written...

The aim of this research is to examine the effect of the role and level of in-sector trust (involving clients, subcontractors, and other logistics providers) and trust within firms in creating competitiveness in logistics service providers. The data were collected from 51 logistics service providers in Hungary. During our research we established th...

The economic, political and social changes experienced globally in recent years have influenced international migration in various countries. The aim of our study is to present the economic and non-economic aspects which determine the quantitative evaluation of migration and to reveal which of the two main factor groups is more dominant. In January...

Several enterprises have tried to introduce the lean approach in order to enhance competitiveness. However, the only successful ones were the companies which understood that lean is not only about methods and tools, but the people using them: employees. The only way an enterprise can become a lean organisation is if all of its members deeply identi...

A technológiai fejlődésnek köszönhetően egyre fokozódó, felgyorsuló piaci verseny alakult ki a vállalatok között. Ezen verseny nemcsak a logisztikai folyamatokban, hanem a termeléssel kapcsolatos kérdésekben is jelentősnek tűnik, hiszen a termelővállalatok középpontját jelentik az értékesítésnek, és nélkülük nem teremthetők meg a logisztika folyama...

This study presents the sequestration and emissions of forests and algae related to CO2 while providing a comparison to other biomass sources (arable crops, short rotation coppices). The goal of the paper is to analyze the impact of the current CO2 balance of forests and the future prospects for algae. Our calculations are based on data, not only f...

Producers are eager to implement their processes more effectively in order to minimize costs and to maximize profit. The primary purpose is to keep inventory value at the lowest possible rate to minimize costs. To this end, the investigated organization operates several processes. One of them is the so-called Vendor Managed Inventory (VMI), in whic...

The tertiary sector is one of the modern styles of economic systems in view of the share it occupies in the field of production as well as employment occupied share. Hence, just like other lands, the UAE, witnessed an economic structural change similar to developed and developing nations, where the tertiary industries contributed 55.4% in 2015 to t...

This paper focuses on the impact of sprinkling and refrigerant based cooling methods of photovoltaic modules on actual performance, the duration of cooling and the quickness of the impact of cooling in comparison with monocrystalline photovoltaic modules without cooling. The obtained findings were analysed both from technical and economic aspects....

Reflecting the growing interest from both consumers and policymakers, and building on recent developments in Willingness to Pay (WTP) methodologies, we evaluate consumer preferences for an archetypal traditional food product. Specifically we draw on stated preference data from a discrete choice experiment, considering the traditional Hungarian mang...

The authors wish to make the following correction to their paper[1].[...].

This review studies biofuel expansion in terms of competition between conventional and advanced biofuels based on bioenergy potential. Production of advanced biofuels is generally more expensive than current biofuels because products are not yet cost competitive. What is overlooked in the discussion about biofuel is the contribution the industry ma...

In this article we present the necessary changes in production logistics of automobile manufacturing for the upcoming years. Based on the higher amount of car models and the continuing growth of variations in the premium car segment, it has become difficult to produce vehicles economically using Henry Ford’s idea conveyor-based techniques. While th...

The latest reform of the Common Agricultural Policy has just been accepted, identifying important challenges for EU agriculture but proposing only limited changes to existing policy. Now it is time for the implementation of new measures. However, from a theoretical point of view, it seems that the CAP can hardly meet the challenges it faces due to...

The latest reform of the Common Agricultural Policy (CAP) has recently been accepted, identifying important challenges for EU agriculture, but proposing only limited changes to the previous CAP. Now it is time for the implementation of the new measures. However, from a theoretical point of view, it seems that the CAP can hardly meet the challenges...

The development of biofuels has been one of the most visible and controversial manifestations of the use of biomass for energy. Bioenergy may compete with the food sector, either directly if food commodities are used as the energy source, or indirectly if bioenergy crops are cultivated on soil that would otherwise be used for food production. Both...

Limited land is available globally to grow crops for food and fuel. There are direct and indirect pressures on forests and other lands to be converted from growing food for feedstock to be used for biofuel production. The balance of evidence indicates there will probably be sufficient appropriate land available to meet demands for both food and fue...