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Sensitivity of technical efficiency estimates to estimation methods: an empirical comparison of parametric and non-parametric approaches
67-72Views:113This paper highlights the sensitivity of technical efficiency estimates to estimation approaches using empirical data. Firm specific technical efficiency and mean technical efficiency are estimated using the non parametric Data Envelope Analysis (DEA) and the parametric Corrected Ordinary Least Squares (COLS) and Stochastic Frontier Analysis (SFA) approaches. Mean technical efficiency is found to be sensitive to the choice of estimation technique. Analysis of variance and Tukey’s test suggests significant differences in means between efficiency scores from different methods. In general the DEA and SFA frontiers resulted in higher mean technical efficiency estimates than the COLS production frontier. The efficiency estimates of the DEA have the smallest variability when compared with the SFA and COLS. There exists a strong positive correlation between the efficiency estimates based on the three methods.
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Demographic and lifestyle attributes with a fundamental role in food supplement consumption (exploratory research)
181-185Views:183The worldwide proportion of food supplement consumers has been steadily increasing, more than 50% of the Hungarian population tends to buy at least one type of dietary supplement. In most cases, the purchase and consumption of food supplements are not based on medical indications but depends on consumers’ individual decisions. The study of consumer groups enables the investigation of typicalities which have an impact on attitudes related to the consumption of food additives. The present study explores the demographical factors determining the global consumption of dietary supplements by secondary research. It sought to explore the typical features of consumer lifestyles in line with the research findings, based on previously specified criteria, through qualitative focus group examinations. My study focused on subjects who bought and purchased at least one type of food supplement in the previous year and placed a high emphasis on healthy diet and lifestyle in their everyday lives. The consumption of dietary supplements indicates growth with age and it is more common among women. Consumers with higher qualifications and incomes tend to buy products with vitamins and minerals in a greater proportion. The identification of nutrition factors revealed that the proportion of those who do not need extra nutrient intake is high among food supplement consumers. It is primarily true of women having a healthy lifestyle (they typically consume high amounts of vegetables and fruits, they are physically active, non-smokers and do not use alcohol); moreover, their socio-economic status is typically high. The findings of my quantitative research suggest that the purchase and consumption of dietary supplements are most characteristic of the “Successful”, “Quality oriented- successful” and “Loyal to the brand - modest” groups in the lifestyle-based consumer segments. The investigated sample showed ambiguous attitudes towards product quality and willingness to pay in all the three batches. Nevertheless, it can be established, when consumers buy food supplements, brand sensitivity proves to be a dominant factor in addition to - typically Hungarian - price sensitivity. Based on lifestyle factors, the current research may bring us closer to the exploration of the motivational and attitude patterns of consumers’ food supplement purchases.
JEL Code: I12, M31
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Bread consumption habits in the gluten free diet
113-119Views:403Gluten is a protein found in many grain products. Celiac disease is a genetic autoimmune disorder characterized by sensitivity to gluten. When a person with celiac disease consumes gluten, his/her immune system perceives the gluten to be a harmful substance and reacts negatively. The only treatment for individuals with celiac disease is lifelong adherence to a gluten-free diet. It is one of the most frequent and well defined of all lifelong diseases. In Hungary, 1-2 % of the population is said to be affected, but only every 10th has been diagnosed. Bread is a basic and frequently consumed food made principally from wheat. Gluten is the main structure-forming protein in flour, and is responsible for the elastic characteristics of dough, and contributes to the crumb structure and appearance of many baked products. Gluten removal results in major problems for bakers. Currently many gluten-free products available on the market are of low quality, exhibiting poor mouth feel and flavour. People wishing to eat bread in the gluten-free diet basically have two options: buying or baking the bread for themselves. There are several gluten-free bread brands are available on the Hungarian market. The price, ingredients, texture, colour, softness of the available breads are different. There is a rather good choice in gluten-free flour mixtures on the Hungarian market, as well. The composition of these mixtures are also different. The aim of our empirical research was to investigate the gluten-free bread consumption habits of people following gluten-free diet. The research was carried out using Google forms in January 2017. Size of the sample is 196. The online form was shared in four closed gluten free Facebook groups in Hungary since they are really active in sharing information concerning gluten-free lifestyle and diet. Summarizing, in this study we wish to examine how evolve the world pork meat production, trade and consumption, and to demonstrate the main consuming countries, highlighting the role of China, as it is the most populated country in the world with its 1.4 billion inhabitants.
JEL Code: M31
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Optimal crop plan of cooperative farmers in Osun state, Nigeria: a linear programming approach
Views:247Optimal level of production requires better use of existing resources at the lowest possible cost. Despite the inherent advantage of cooperatives to the agricultural sector, the question of how farmers under cooperative umbrella use farm resource for optimal outcome remains unanswered. This study investigates optimal crop mix for cooperative farmers in rural communities in Southwest Nigeria. Primary data were collected for the study through structured questionnaire. The data were fitted to Linear Programming Model. Three different cropping patterns are identified among the cooperative farmers. Based on the results from linear programming model, only maize, cassava and yam are admitted in the final plan and this combination is to be produced at 2.23 hectares. The gross margin value associated with the plan is ₦156, 235.781 (1$ = N365). Input resources such as land, labour, fertilizer, and chemicals are not fully utilized. The slack values for these inputs are 0.31, 651.20, 1929.6 and 140.76 respectively. The sensitivity analysis shows that seed/seedling is the only binding resource in the final plan with a shadow price which suggests that proper allocation of seed and seedlings would improve returns to cooperative farmers. There is need for appropriate farm management strategies to ensure optimal return for farmers. More education and training is suggested to boost cooperative farmers understanding of optimum strategy that is needed to improve production and earnings.
JEL code: Q10, Q13
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Using DEA to evaluate efficiency of higher education
79-82Views:565The aim of the higher education reform process both in Hungary and in the European countries is establishing a competitive, qualitative higher education with efficiently operating institutions. The question of efficiency needs increased attention not only because of the decline of the state support but also the rapid raise of the student mass. In the educationsystemit’snot easy to measurethe output of the services.The situation is more complicated if an organisation or a sector has multiple inputs and outputs. In this case a possible method of determining efficiency is Data Envelopment Analysis. In my paper I’d like to introduce this method and use it to compare the efficiency of higher education systems. urthermore I am examining whether their efficiency is influenced by the extent of the contribution of the state and the private sector or socio-economic factors like GDP per capita and education level of parents.
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Defining the strategic objectives of Hungarian mutton product chain and elements of marketing strategy in the beginning of the second decade of the century
119-132Views:238The sheep sector is regarded to be a “black sheep” in Hungary, both in terms of economy and marketing. On one hand, the sector is not easily traceable as available relevant data are partial and infected by the effects of black market or underground economy; on the other hand, there are no clear, concrete statistical data or surveys on consumption either.
The present study attempts to dissolve the above anomalies and present findings by fact-based model calculations and actual marketing surveys. The fact-based model developed and used for more than 200 variables verifies the correctness of economic calculations. Original examinations were performed by Béla Cehla, doctoral candidate, in 2000–2011. The marketing survey, although not in full accordance with statistical requirements, was carried out in 2012 and it processed relevant data authentically.
The main conclusions are the following: It is clear so far that genetic basis should primarily be evolved in the industry, as it is the factor that mainly contributes to profitability and price-type factors come only following it. Genetic modification is achievable by changing breeds or crossbreeding. The findings of product chain level sensitivity analysis have provided clues that the added value generated in the sector is already determined during slaughter lamb production and progeny influences this value in approximately 80%. Critical points are feed conversion ratio and the relating price of lamb feed, which influence added values by 2.7–2.9%. The remaining factors affect added value through feeding costs, although not considerably.
The following activities can boost interest in the market of sheep products:
• Comprehensive market research
• Stimulation of cultural development by product-tasting, exchanging information and recipes
• Development of supply in accordance with demand
• Identification of target markets, positioning products
• Diversification of product range
• Community trade mark to guarantee excellent quality and Hungarian origin
• Selection of credible poster faces, organization of advertising campaigns -
The effect of logistic controlling on business processes
107-111Views:153The increase in the significance of logistics can be attributed to two major reasons: the increasing cost sensitivity of companies and the necessity for the higher fulfilment of customer needs. Logistic controlling is a tool of management used to coordinate logistic activities and to reach logistic managerial decisions by providing information through the analysis of the system. The up-to-date and precise information that can be gained from the logistic controlling system helps the management in the preparation of decisions, and the adaptation to environmental conditions. With these activities, logistic controlling makes the enterprises more efficient and successful. Taking the above into consideration, I carried out a survey on why commercial entities decided on the introduction and application of a logistic controlling system, what conditions are necessary for the introduction of a logistic controlling system, and what experiences the users gained by the application. Positive effects of logistic controlling were proved on operations, and the introduction and application of logistic controlling were analysed.
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