Analysis of the drivers of Ghana's energy demand change using the Laspeyres index method of decomposition: Q-effect, I-effect and S-effect

2018 ◽  
Vol 42 (3) ◽  
pp. 262-276
Author(s):  
Benjamin Akrofi ◽  
Ishmael Ackah ◽  
Daniel Sakyi
Keyword(s):  
Energy Demand ◽  
Index Method ◽  
Laspeyres Index

scholarly journals MOLDOVAN EXTERNAL TRADE WITH EU, CIS AND OTHER COUNTRIES: ACHIEVEMENTS AND CHALLENGES

2019 ◽  
pp. 53-70
Keyword(s):  
Foreign Trade ◽  
Volume Index ◽  
The European Union ◽  
External Trade ◽  
Index Method ◽  
Republic Of Moldova ◽  
Trade Relations ◽  
Physical Volume ◽  
The Republic ◽  
Laspeyres Index

The foreign trade of a state represents a determinant in assessing its economic statute among the neighbours and in the whole world. Actuality of the studied topic is determined by the changing trade relations that the Republic of Moldova is passing through in the last years. Republic of Moldova holds the necessary criteria for becoming a competitive country in the region in terms of the manufactured and marketed goods. The aim of the study is to evaluate the foreign trade of the Republic of Moldova, by emphasizing the main traded groups of products, trade partners as well as to analyze the average price index and physical volume index of imports and exports. The paper also comes with an analysis of re-export and re-import, which represent a peculiarity for our country’s trade pattern. Research methods that have been used within the paper are the following: analogy, systemic approach, statistical and scientific analysis, Laspeyres index method. The obtained results focus on the recovery of the foreign trade between 2015 and 2017 with higher revival rates of exports, and a growing reorientation of exports towards the European Union and other countries markets.

scholarly journals Decomposition Analysis of Global Water Supply-Demand Balances Focusing on Food Production and Consumption

2021 ◽  
Vol 13 (14) ◽  
pp. 7586
Author(s):  
Yohei Yamaguchi ◽  
Naoki Yoshikawa ◽  
Koji Amano ◽  
Seiji Hashimoto
Keyword(s):  
Water Balance ◽  
Water Supply ◽  
Food Production ◽  
Water Footprint ◽  
Decomposition Analysis ◽  
Index Method ◽  
Production And Consumption ◽  
Offset Factor ◽  
Laspeyres Index ◽  
Balance Index

Food production and consumption require large amounts of freshwater. There is no literature on the decomposition analysis of the intensities of water supply-demand balances (water balance intensities) for each country worldwide. The aim of this study is to evaluate the water balance intensities and elucidate the promoting factors and offset factors of water balance intensities for each country worldwide, focusing on food supply-demand balances and considering food trade balances on a global scale. The modified Laspeyres index method is applied to both a production-based water balance index (WBIPB) and a consumption-based water balance index (WBICB). The major promoting factor for the WBIPB is the renewable freshwater resources, whereas the major offset factor is the produced item preference. The major promoting factor for the WBICB is the consumed item preference, whereas the major offset factor is the producing area preference. Improving irrigation efficiencies of rice and cereals is effective because rice requires the largest blue water footprint intensities, considering irrigation efficiency on a calorie content basis in all of the items, whereas cereals are the largest share of calorie-based production quantities in all of the items worldwide. This study provides the foundation for decreasing water balance intensities regarding food production and consumption.

scholarly journals The Place of Turkey among MINT Countries from Efficient Energy Use Perspective: A Comparative Decomposition Analysis

2017 ◽  
Author(s):  
Harun Bal ◽  
Banu Tanrıöver ◽  
Müge Manga
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Energy Input ◽  
Energy Use ◽  
Decomposition Analysis ◽  
Index Method ◽  
Safety Strategies ◽  
Energy Dependent ◽  
Input Prices ◽  
Efficient Energy Use

The security of energy supply has become an important issue for energy-dependent countries due to increasing energy demand and energy input prices in recent years. Therefore, energy-dependent countries have developed energy safety strategies to reduce dependence. However, the environmental problems that occur because of the increase in energy consumption, countries had to adopt an economic development process, sustainable development strategies taking account of environmental factors together with economic growth. Thus, an energy input and optimal energy policies have become increasingly important. This paper investigates the real energy efficiency by decomposing the structural and production activities and energy consumption changes of MINT countries, namely, Mexico, Indonesia, Nigeria and Turkey for the period of 1990-2014 utilizing Logarithmic Average Division Index Method. The results show that Mexico uses energy more efficiently among the countries. Mexico is followed by Indonesia, Turkey and Nigeria, respectively.

A novel ligand with –NH2 and –COOH-decorated Co/Fe-based oxide for an efficient overall water splitting: dual modulation roles of active sites and local electronic structure

2020 ◽  
Vol 10 (18) ◽  
pp. 6266-6273
Author(s):  
Yalan Zhang ◽  
Zebin Yu ◽  
Ronghua Jiang ◽  
Jung Huang ◽  
Yanping Hou ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Water Splitting ◽  
Energy Demand ◽  
Active Sites ◽  
Electrode Materials ◽  
Global Energy ◽  
Overall Water Splitting ◽  
Local Electronic Structure ◽  
Electrochemical Water Splitting

Excellent electrochemical water splitting with remarkable durability can provide a solution to satisfy the increasing global energy demand in which the electrode materials play an important role.

Detecting Random Responses in a Personality Scale Using IRT-Based Person-Fit Indices

2019 ◽  
Vol 35 (1) ◽  
pp. 126-136 ◽  
Author(s):  
Tour Liu ◽  
Tian Lan ◽  
Tao Xin
Keyword(s):  
Experimental System ◽  
Real Data ◽  
Fit Indices ◽  
Random Response ◽  
Person Fit ◽  
Index Method ◽  
Single Person ◽  
Person Fit Index ◽  
Random Responses ◽  
Response Behaviors

Abstract. Random response is a very common aberrant response behavior in personality tests and may negatively affect the reliability, validity, or other analytical aspects of psychological assessment. Typically, researchers use a single person-fit index to identify random responses. This study recommends a three-step person-fit analysis procedure. Unlike the typical single person-fit methods, the three-step procedure identifies both global misfit and local misfit individuals using different person-fit indices. This procedure was able to identify more local misfit individuals than single-index method, and a graphical method was used to visualize those particular items in which random response behaviors appear. This method may be useful to researchers in that it will provide them with more information about response behaviors, allowing better evaluation of scale administration and development of more plausible explanations. Real data were used in this study instead of simulation data. In order to create real random responses, an experimental test administration was designed. Four different random response samples were produced using this experimental system.

Advances in rib waveguide analysis using the weighted index method or the method of moments

1990 ◽  
Vol 137 (1) ◽  
pp. 27 ◽  
Author(s):  
P.C. Kendall ◽  
M.J. Robertson ◽  
P.W.A. McIlroy ◽  
S. Ritchie ◽  
M.J. Adams
Keyword(s):  
Method Of Moments ◽  
Index Method ◽  
Rib Waveguide ◽  
Weighted Index

Analysis of the spectral index method for vector modes of rib waveguides

1990 ◽  
Vol 137 (1) ◽  
pp. 21 ◽  
Author(s):  
M.S. Stern ◽  
P.C. Kendall ◽  
P.W.A. McLlroy
Keyword(s):  
Spectral Index ◽  
Index Method ◽  
Rib Waveguides

Fuzzy multi-objective decision making approach for nuclear power plant installation

2020 ◽  
Vol 39 (5) ◽  
pp. 6339-6350
Author(s):  
Esra Çakır ◽  
Ziya Ulukan
Keyword(s):  
Linear Programming ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Energy Supply ◽  
Energy Demand ◽  
Nuclear Power ◽  
Power Plants ◽  
Total Duration ◽  
Objective Functions ◽  
Multi Objective

Due to the increase in energy demand, many countries suffer from energy poverty because of insufficient and expensive energy supply. Plans to use alternative power like nuclear power for electricity generation are being revived among developing countries. Decisions for installation of power plants need to be based on careful assessment of future energy supply and demand, economic and financial implications and requirements for technology transfer. Since the problem involves many vague parameters, a fuzzy model should be an appropriate approach for dealing with this problem. This study develops a Fuzzy Multi-Objective Linear Programming (FMOLP) model for solving the nuclear power plant installation problem in fuzzy environment. FMOLP approach is recommended for cases where the objective functions are imprecise and can only be stated within a certain threshold level. The proposed model attempts to minimize total duration time, total cost and maximize the total crash time of the installation project. By using FMOLP, the weighted additive technique can also be applied in order to transform the model into Fuzzy Multiple Weighted-Objective Linear Programming (FMWOLP) to control the objective values such that all decision makers target on each criterion can be met. The optimum solution with the achievement level for both of the models (FMOLP and FMWOLP) are compared with each other. FMWOLP results in better performance as the overall degree of satisfaction depends on the weight given to the objective functions. A numerical example demonstrates the feasibility of applying the proposed models to nuclear power plant installation problem.

Biodiesel production from non-edible oils: A review

2020 ◽  
pp. 149-159
Author(s):  
Jatinder Kataria ◽  
Saroj Kumar Mohapatra ◽  
Amit Pal
Keyword(s):  
Environmental Impact ◽  
Energy Demand ◽  
Fossil Fuels ◽  
World Wide ◽  
Edible Oils ◽  
Control Measure ◽  
Biodiesel Production ◽  
Pollution Level ◽  
Animal Fats ◽  
The World

The limited fossil reserves, spiraling price and environmental impact due to usage of fossil fuels leads the world wide researchers’ interest in using alternative renewable and environment safe fuels that can meet the energy demand. Biodiesel is an emerging renewable alternative fuel to conventional diesel which can be produced from both edible and non-edible oils, animal fats, algae etc. The society is in dire need of using renewable fuels as an immediate control measure to mitigate the pollution level. In this work an attempt is made to review the requisite and access the capability of the biodiesel in improving the environmental degradation.

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