scholarly journals MODELING THE ANTENNA INPUT IMPEDANCE BY THE METHOD OF MOMENTS

2021 ◽  
Author(s):  
Dmitriy Klyukin ◽  
Aleksandr Demakov ◽  
Anton Ivanov ◽  
Sergey Kuksenko
Keyword(s):  
Method Of Moments ◽  
Input Impedance ◽  
Computational Grid ◽  
Excitation Source ◽  
Source Models ◽  
The Impact ◽  
Antenna Input ◽  
Antenna Model

The paper presents a comparison of excitation source models when modeling antennas by the method of moments. By using a set of adjacent edges when specifying the impact, it is possible to obtain correct results when the computational grid of the antenna model is more frequent. This is shown on the example of a symmetric electric vibrator.

Does Bank Profitability Stimulate Economic Growth in the Arab Region?

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Omar Ghazy Aziz
Keyword(s):  
Financial Development ◽  
Method Of Moments ◽  
Positive Impact ◽  
Generalized Method Of Moments ◽  
Arab Countries ◽  
Return On Assets ◽  
Bank Profitability ◽  
Arab Region ◽  
Return On Equity ◽  
The Impact

AbstractThis study empirically investigates the impact of bank profitability, as a complementary measure of financial development, on growth in the Arab countries between 1985 and 2016. Using a generalized method of moments (GMM) estimation to test the impact of the bank profitability on growth, this study utilises two variables in the econometric model which are return on assets and return on equity. This study reveals that both variables of bank profitability are positive and significant. This confirms that the bank profitability, beside other financial development variables, has positive impact on the growth. This study points out some important implications based on this result.

Calculation of antenna input impedance by TLM method

1995 ◽  
Vol 31 (25) ◽  
pp. 2138-2139
Author(s):  
Y. Huang ◽  
D. Mirshekar-Syahkal ◽  
I.J. Dilworth
Keyword(s):  
Input Impedance ◽  
Tlm Method ◽  
Antenna Input

The impact of urbanization on energy consumption and efficiency

2017 ◽  
Vol 28 (7) ◽  
pp. 673-686 ◽  
Author(s):  
Pengfei Sheng ◽  
Yaping He ◽  
Xiaohui Guo
Keyword(s):  
Energy Consumption ◽  
Method Of Moments ◽  
Energy Use ◽  
Generalized Method Of Moments ◽  
Method Of Moments Estimation ◽  
Process Of Urbanization ◽  
Per Capita ◽  
Using Data ◽  
Impact Of Urbanization ◽  
The Impact

There is no consensus about the impact of urbanization on energy efficiency. We seek to fill this gap in literature using data from 78 countries for the period of 1995 through 2012. Extending the Stochastic Impacts by Regression on Population, Affluence, and Technology model, we identify the impact of urbanization on energy consumption and efficiency. Results of generalized method of moments estimation indicate that the process of urbanization leads to substantial increases in both the actual and the optimal energy consumption, but a decrease in efficiency of energy use. In addition, we find that the extent to which energy inefficiency correlates with urbanization is greater in countries with higher gross domestic product per capita.

scholarly journals A Crook is a Crook . . . But is He Still a Crook Abroad? On the Effect of Immigration on Destination-Country Corruption

2015 ◽  
Vol 16 (4) ◽  
pp. 464-489 ◽  
Author(s):  
Eugen Dimant ◽  
Margarete Redlin ◽  
Tim Krieger
Keyword(s):  
Method Of Moments ◽  
Fixed Effects ◽  
Generalized Method Of Moments ◽  
Destination Country ◽  
Estimation Methods ◽  
Econometric Methodology ◽  
Migration Flows ◽  
The Difference ◽  
Method Of Moments Estimator ◽  
The Impact

AbstractThis paper analyzes the impact of migration on destination-country corruption levels. Capitalizing on a comprehensive dataset consisting of annual immigration stocks of OECD countries from 207 countries of origin for the period 1984-2008, we explore different channels through which corruption might migrate. We employ different estimation methods using fixed effects and Tobit regressions in order to validate our findings. Moreover, we also address the issue of endogeneity by using the Difference- Generalized Method of Moments estimator. Independent of the econometric methodology, we consistently find that while general migration has an insignificant effect on the destination country’s corruption level, immigration from corruption-ridden origin countries boosts corruption in the destination country. Our findings provide a more profound understanding of the socioeconomic implications associated with migration flows.

scholarly journals Assessment of the Effect of Technological Innovations on Unemployment in the European Union Countries

2021 ◽  
Vol 32 (2) ◽  
pp. 130-139
Author(s):  
Zigmas Lydeka ◽  
Akvile Karaliute
Keyword(s):  
European Union ◽  
Method Of Moments ◽  
Scientific Literature ◽  
Generalized Method Of Moments ◽  
Technological Innovations ◽  
Labour Demand ◽  
The European Union ◽  
Independent Variables ◽  
European Union Countries ◽  
The Impact

Innovation and unemployment are two economic elements related to each other that have been constantly analyzed in the economic debates from the beginning of the 21st century. A classical question is whether innovation creates or destroys jobs. The conventional approach contemplates innovation as a transformation instrument of an economy, resulting in economic growth and jobs creation. Another approach points out to various mechanisms which can compensate the primary effect of innovations and cause an ultimate effect of innovations on labour demand to be unclear. In view of the fact that there are many different explanations about the impact of innovations on labour demand, this paper, after the analysis of theoretical and empirical scientific literature in this field, provides an empirical analysis with unemployment as the dependent variable. The authors use data from 28 European Union countries for the period of 1992–2016 and pursue to research how technological innovations affect unemployment rate. There are two core independent variables – expenditure on R&D (research and development) and number of patent applications – as the main proxies for technological innovations. Control variables that affect unemployment are included to the model as well. The model was estimated using a dynamic two-step System Generalized Method of Moments (GMM-SYS) of a panel data system. After the composition of 12 different estimations of the model, the results suggest that, in some cases, technological innovations affect unemployment.

scholarly journals Determinants of Basmati Exports from Pakistan: A Panel Data Analysis

2021 ◽  
Vol 3 (1) ◽  
pp. 12-18
Author(s):  
Muhammad Munwar Hayat ◽  
Raheela Khatoon
Keyword(s):  
Panel Data ◽  
Method Of Moments ◽  
Negative Impact ◽  
Positive Impact ◽  
Panel Data Analysis ◽  
Generalized Method Of Moments ◽  
Trading Partner ◽  
Dummy Variable ◽  
Export Competitiveness ◽  
The Impact

This paper aims to estimate the impact of different factors of basmati exports from Pakistan to its trading partner. Results are obtained by using the Generalized Method of Moments (GMM) model and panel data methodology with a sample of 22 countries for the period of 2003-2019. To estimate the impact of different variables on basmati exports Generalized Method of Moments (GMM) model is used on the panel dataset. The results revealed that the inflation rate of Pakistan has a negative and significant effect on the export competitiveness of Pakistani basmati. The exchange rate of Pakistan has a positive and significant impact on the basmati export, the population of Pakistan has a negative and significant impact on basmati export. Basmati production in Pakistan also has a significant and negative impact on basmati export. The Gross Domestic Product (GDP) of Pakistan has a significant and positive impact on the basmati export while the GDP of the trading partner has a significant and negative impact on the basmati export. The dummy variable for joint border also has a positive and significant impact on basmati exports of Pakistan.

scholarly journals Efektivitas Kredibilitas Bank Sentral terhadap Inflasi bagi Produsen dan Konsumen di Indonesia

2020 ◽  
Vol 20 (2) ◽  
pp. 174-196
Author(s):  
Rakhmat Prabowo ◽  
Mohamad Ikhsan
Keyword(s):  
Central Bank ◽  
Method Of Moments ◽  
Price Index ◽  
Generalized Method Of Moments ◽  
Wholesale Price ◽  
Producer Price ◽  
Core Inflation ◽  
Wholesale Price Index ◽  
The Impact ◽  
Central Bank Credibility

This study is intended to explain the impact of central bank credibility on inflation in Indonesia at the producer and consumer level. In this study, Central Bank Credibility is measured using an index with values between 0 (zero credibility) and 1 (perfect credibility). Generalized Method of Moments (GMM) method is used to analyze the impact of central bank credibility on inflation. Based on the results, central bank credibility can reduce inflation on both producer and consumer price. Central bank credibility is more sensitive towards producer price index compared to Gross Domestic Product (GDP) deflator and wholesale price index while at the consumer level, central bank credibility is more sensitive towards core inflation compared to headline inflation. -------------------------------------- Penelitian ini menjelaskan dampak kredibilitas Bank Sentral terhadap inflasi di Indonesia. Dampak kredibilitas Bank Sentral dianalisis pada tingkat produsen maupun konsumen. Untuk mengukur kredibilitas Bank Sentral, penelitian ini menggunakan indeks kredibilitas bernilai 0 (zero credibility) hingga 1 (perfect credibility). Metode Generalized Method of Moments (GMM) digunakan untuk menganalisis dampak kredibilitas Bank Sentral terhadap inflasi. Berdasarkan hasil empiris, kredibilitas Bank Sentral cenderung lebih memengaruhi inflasi pada Indeks Harga Produsen (IHP) dibandingkan Indeks Harga Perdagangan Besar (IHPB) dan deflator Produk Domestik Bruto (PDB). Kredibilitas Bank Sentral lebih memengaruhi inflasi inti dibandingkan dengan inflasi umum. Dari hasil empiris diketahui bahwa kredibilitas Bank Sentral lebih memengaruhi inflasi pada sisi produsen dibandingkan konsumen.

scholarly journals Verification of modeling wired antennas by the method of moments

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
A. Alhaj Hasan ◽  
◽  
A.A. Kvasnikov ◽  
S.P. Kuksenko ◽  
T.R. Gazizov ◽  
...  
Keyword(s):  
Method Of Moments ◽  
Input Impedance ◽  
Computer Aided Design ◽  
Segment Length ◽  
Good Match ◽  
Half Wave ◽  
Computer Aided ◽  
Design Systems ◽  
Aided Design ◽  
Frequency Dependences

. Modeling of several antennas by the method of moments in the TALGAT system was performed for comparison with tested results. At first, the published results for half-wave and wave dipoles are compared with our results. Current module distributions and frequency dependences of the real and imaginary parts of the input impedance are obtained. The results showed a good match. Then the published experimental and analytical results for the radiation pattern and frequency dependence of the admittance of the gull shape antenna are compared with our results. The convergence of the results with segment length decreasing is shown. A good match is obtained. It is shown that detailed testing is important in the process of implementation and development of computer-aided design systems

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