Ucal, Meltem
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Name Variants
Meltem, Ucal
Ucal, M.
Ucal,M.
M. Ucal
MELTEM UCAL
Ucal,Meltem
U., Meltem
UCAL, Meltem
UCAL, MELTEM
Ucal, Meltem
U.,Meltem
Ucal, MELTEM
Ucal M.
Meltem UCAL
Meltem Ucal
Ucal, Meltem Şengün
Şengül Ucal, Meltem
Ucal, Meltem Şengün
Şengün Ucal, Meltem
Ucal, M.
Ucal,M.
M. Ucal
MELTEM UCAL
Ucal,Meltem
U., Meltem
UCAL, Meltem
UCAL, MELTEM
Ucal, Meltem
U.,Meltem
Ucal, MELTEM
Ucal M.
Meltem UCAL
Meltem Ucal
Ucal, Meltem Şengün
Şengül Ucal, Meltem
Ucal, Meltem Şengün
Şengün Ucal, Meltem
Job Title
Prof. Dr.
Email Address
msengun@khas.edu.tr
Main Affiliation
Economics
Status
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals Report Points
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Scholarly Output
34
Articles
23
Citation Count
6
Supervised Theses
6
10 results
Scholarly Output Search Results
Now showing 1 - 10 of 10
Article Citation - WoS: 0Citation - Scopus: 0The Nexus Between Migration and Environmental Degradation Based on Fundamental Climate Variables and Extreme Climate Indices for the Mena Domain(Elsevier, 2025) Ucal, Meltem; Demiralay, Zekican; Ucal, Meltem; Kurnaz, M. Levent; EconomicsEnvironmental migration has recently become primary source of population growth and environmental degradation from extreme events has created the environmental refugee concept with a variety of manners affecting lives. For understanding of the environmental degradation impact on migration, a hybrid approach (regional climate modelling, RegCM4.4 and statistical modelling, ordered logit) has been applied for 65 countries in the Middle East and North Africa (MENA) for the periods of 2021-2050 and 2051-2080. It is aimed to examine how climate change affect migration by applying fundamental climate variables (i.e., maximum temperature, minimum temperature, and precipitation) and the control variables (i.e., the hot days, the tropical nights, and the dry days) in the MENA. While key findings indicate an increase in the minimum temperatures (Tmin) in future in all populous cities, the water amount may further decrease in the mid-latitude and Mediterranean with temperate climates due to precipitation change. While it may pose a high risk in the regions having experienced extreme temperatures e.g., tropical nights (Tn), it may further adversely affect ones not having experienced extremes. Considering statistically significant positive relationship between Tmin, and net migration rate (NMIG), and negative relationship between precipitation and NMIG, it may encourage migration to cooler regions.Book Part Citation - Scopus: 5Energy and Sustainable Development From Perspective of Energy Poverty(Springer, 2021) Ucal, Meltem Şengün; Ucal, Meltem; EconomicsEnd of poverty, the number one Sustainable Development Goal, focuses on ending all kinds of poverty all over the world. The elimination of all forms of poverty continues to be the biggest problem facing humanity today. The most important problems that have been encountered since the beginning of the energy use are the increasing risk of deterioration of energy supply, energy production and energy poverty. The problem of energy poverty among them is widely mentioned in the literature. In general, the studies on the subject focus on how the problem is defined worldwide, its size, its consequences, the obstacles to the elimination of the problem and some solution opportunities. The term “energy poverty” can refer to two different socio-economic issues, depending on the geographical scope of its application: energy affordability in higher income and developed states; inadequate access to “modern” energy services in most low income or developing countries”. Poor people pay a high price for the energy they use, either in cash or by labor. In addition, poor households spend more on energy than wealthy people, not only because their income is much smaller, but also because the fuels and equipment they use are much less efficient than modern fuels and equipment. No country has been able to diminish energy poverty to a great extent without increasing energy use. Decreasing the global inequality in energy is key to reducing income, gender and an inequality in other dimensions such as rural/urban income gaps. From this perspective, the importance of the relationship between energy poverty and sustainable development will be discussed by making comparisons by taking the country cases into consideration in the context of energy efficiency and renewable energy. The regional understanding of these concepts will also be discussed in this context.Article Citation - WoS: 18Citation - Scopus: 18A Dynamic Game Theory Model for Tourism Supply Chains(Sage Publications, 2021) Keskin, Kerim; Keskin, Kerim; Ucal, Meltem Şengün; Ucal, Meltem; EconomicsThis article contributes to the game-theoretic analysis of tourism supply chains. We start with a baseline model including three types of agents: (a) one theme park, (b) multiple accommodation providers, and (c) multiple tour operators. We investigate the strategic dynamics (i.e., collaboration and competition) embedded in a market with two different tourism supply chains, and then we extend our model to an infinite-horizon repeated game arguing that agents would face the same decision problem in each week of every holiday season in each year. We show how agents in a tourism supply chain end up with higher profits in any given period of a repeated game compared with their profits in the static version of the game.Master Thesis The Role of Climate Change in the Energy Policies of the European Union(Kadir Has Üniversitesi, 2022) Demirkıran, Vildan; Ucal, Meltem; Ediger, Volkan; Meltem Ucal; EconomicsOne of the key factors for economic development and increasing the welfare level of the people is energy. Developed and developing countries depend on fossil fuel resources to meet their energy demand. The need for fossil energy sources, unevenly distributed throughout the world, is increasing daily. However, the rapid depletion of reserves and their short life span threaten countries in terms of energy supply. One of these countries is the European Union, which is a supranational organization. The Union, which ranks first in energy imports, meets more than half of its energy needs from fossil resources. In the past, the problems experienced in energy supply due to international oil crises and political instability in the countries on which it is dependent on energy forced the Union to produce a new energy policy. In the 1990s, the issue of climate change, which emerged as a result of the excessive use of fossil fuels, came to the fore, and the goal of reducing carbon emissions, which reached dangerous levels, to pre-Industrial Revolution rates brought a new dimension to the energy policies of the European Union. In order to ensure energy supply security, reduce dependence on fossil fuels, and produce sustainable and environmentally friendly energy, the EU develops new policies. Aiming to be a climateneutral continent by 2050, the Union plans to obtain most of its energy needs from renewable sources and low-carbon technologies. In this study, the change in energy policies since the establishment of the EU, the role of climate change in policy making, how far the EU is in carbon emission reduction targets, the role of the EU in global climate leadership and future plans will be discussed.Article Citation - WoS: 1Citation - Scopus: 1Food to Grid: Developing a Multi-Value renewable energy investment ecosystem(Pergamon-Elsevier Science Ltd, 2022) Ucal, Meltem; Efthimiadou, Aspasia; Ucal, Meltem; EconomicsThe paper is focused on building a multi-source small-scale facility that shall be focused on increasing the Renewable Energy Sources share into the grid and at the same time meet the energy, and fresh food needs of the small community that shall operate. The developed facility that shall be utilised is introducing, in practice, a sustainable Energy-Food nexus plan that can be implemented and put into action by the independent power producers and municipalities, meeting also the goal of supporting the grid (a Food to Grid approach). A case study was tested, and it was found that a scheme that couples the curtailed power with a potential mass deployment of vertical farms is beyond sustainable and even with very low marginal price-earnings and the minimum price offered for vertical farms, under specific scenarios can have a full payback in 14 years as an investment. However, in the average optimal case, the investors can get their investments back in 7 years, with an internal rate of return of 17%.Article Citation - WoS: 2Citation - Scopus: 2Is Precarity a Fate for Women in Türkiye? Rethinking Energy Poverty From a Gender Perspective(Springer Heidelberg, 2023) Ucal, Meltem; Ucal, Meltem; Gunay, Simge; EconomicsEnergy poverty is a challenging issue that hampers economic and sustainable development and lowers people's standard of living. While trying to understand energy poverty, it is imperative to focus on the disadvantaged individuals mentioned in the literature, as they are often most vulnerable to the problem. Focusing on them is essential to achieving sustainable development goals, especially in developing countries, particularly regarding poverty, energy poverty, and gender equality. Therefore, the paper aims to examine the impact of economic precarity on working-age females' energy poverty perceptions using 2018-2020 TURKSTAT-SILC pooled cross-sectional data. Our findings from the bivariate probit, multivariate probit and Bayesian bivariate probit models suggested that economic precarity has a disruptive role on females' energy poverty perceptions. Furthermore, inefficient energy use is an important factor in influencing females' perceptions of energy poverty. Females' inability to pay required housing expenses increases their perceived energy poverty. Therefore, social-welfare policies and energy policies should be considered together by the policymakers to resolve females' energy poverty problem to achieve a more sustainable future.Article Citation - WoS: 11Citation - Scopus: 11Household Happiness and Fuel Poverty: a Cross-Sectional Analysis on Turkey(SPRINGER, 2021-01) Ucal, Meltem; Günay, Simge; EconomicsIn recent years, self-reported happiness and fuel poverty have both become hotly-debated topics in the literature. Since both of them affect people's quality of life, they are certainly worth serious consideration. Therefore, this paper aims to conduct a household-level analysis on the association between happiness and fuel poverty taking advantage of other housing characteristics. We used ordered logit model utilizing Turkish Statistical Institute (TURKSTAT)'s 2014-2018 Life Satisfaction Survey (LSS) data for the analysis. Our dependent variable is household happiness. The results show that household fuel poverty is negatively associated with household happiness in Turkey. A positive association exists between becoming home-owner and household happiness in the country; however, it becomes mostly negative after considering odds ratios. On the other hand, there is a positive association between climbing income ladder and household happiness in the country. Also, the presence of men in households is found to be negatively associated with household happiness in Turkey. Our results imply a U-shaped association between age groups in households and household happiness in the country. Finally, we found that the association between an increase in household size and household happiness varies across each category of the independent variable. This is also the case for the association between number of rooms and household happiness as well as for the association between dwelling area and household happiness in Turkey.Article Citation - WoS: 4Citation - Scopus: 5Housing Prices in a Market Under Years of Constant Transformation: a County-Based Analysis of Istanbul(Cracow Univ Economics, 2020) Ucal, Meltem; Ucal, Meltem; Kaplan, Uğur; EconomicsObjective: The objective of the article is to present a comprehensive approach to analysing Istanbul's housing prices, using a hedonic price model with a large dataset and a single variable for locational attributes. Research Design & Methods: The analysis of consequent housing prices in Istanbul's counties with hedonic price modelling and the extrapolation of results by comparing the prices to the human development level of counties. We use multiple regression and Ordinary Least Squares (OLS) methods to estimate two semi-log hedonic price models for two time periods. Findings: The relationship between socioeconomic development levels and housing prices varies for counties under different urban transformation processes. Implications & Recommendations: The results are useful for the housing price analysis in Istanbul. The housing prices appear to follow the socioeconomic development level of the county in which a house is located, thus showing variations between different counties. The relationship between housing prices and urban transformation processes should be approached with caution by policymakers, as the outcomes may disturb both the sociological and economic balance in the long run. Contribution & Value Added: The study contributes to the existing research on housing price analysis by interpreting locational attributes as a whole and housing research at large by combining hedonic price modelling and case study methods.Article Citation - WoS: 67Citation - Scopus: 84Multidirectional Relationship Between Energy Resources, Climate Changes and Sustainable Development: Technoeconomic Analysis(Elsevier, 2020) Ucal, Meltem Şengün; Ucal, Meltem; Xydis, George; EconomicsGlobal changes in temperature will likely change energy use and electricity production capacity. Considering the relationship between climate change and energy resource use, changes in temperature and the frequency and intensity of extreme events will affect how much energy is produced and consumed. The green economy and green growth are located at the heart of the fight against climate change in creating sustainable development. This paper considers the multidirectional relations between climate change, energy resources, and sustainable development including the perspective of a green economy via a technoeconomic analysis. A link among energy resources, climate changes and sustainable development has been displayed via a technoeconomic analysis in the case study, which was focused on taking into consideration the needs of the hydroponic units, the product selling price, the electricity price of the wind farm (WF), and at the same time the energy demand, under a nexus approach. Via the technoeconomic analysis, it was proven that moving on to smaller investments of 2 MWs is more efficient compared to larger projects e.g. 18 MWs, however, this cannot be considered immediately as the preferred solution since it is always a matter of impact on the local society.Book Part Citation - Scopus: 0Economics of Energy and Green Growth: Decoupling Debate(CRC Press, 2022) Ucal, Meltem; EconomicsIt is well known that energy is crucial for both human welfare and the continuous development of society. Energy sources can be categorized as either depletable or renewable and storable or non-storable, respectively. Today, global energy consumption mostly depends on fossil fuels. On the other hand, the increasing use of renewable energy sources is very promising due to the disruptive effects of climate change. Increased use and production of renewable energy will also contribute to the transition towards green growth. In this context, it is not possible to talk about the concept of decoupling; we can choose a way to grow without damaging the nature and the environment. To locate these conceptual expressions, developed countries should look at national and international production strategies in this direction. Especially societies and countries that grow with energy production need to be careful about this issue. Energy consumed in different amounts and methods is among the factors that accelerate environmental destruction. Without decoupling, ongoing and growing economic growth in developed and the increasing environmental pressures, inevitably exceeding the carrying capacity of ecosystems, and the corresponding environmental impacts and adversities on society will inevitably refer to developing countries. If the pressure on the environment caused by climate change greenhouse gas emissions cannot be successfully separated (decoupled) from economic growth, it will not be possible to reach the desired targets. Decoupling is defined as 'relative' ('weak') or 'absolute' ('strong'). Relative decoupling signifies higher rates of economic growth than rates of growth in material and energy consumption and environmental impact. Consequently, relative decoupling implies a gain in efficiency rather than the removal of the link between impact and GDP. In this chapter, the economics of energy (in terms of production), green growth, and their impact on the environment will be discussed in terms of decoupling. © 2023 selection and editorial matter, Muhammad Asif. All rights reserved.
