Spatial Seemingly Unrelated Regression Models for Freight Trip Generation by Vehicle Type: Application to the Chennai Metropolitan Area in India

2021 ◽  
pp. 036119812110600
Author(s):  
Mounisai Siddartha Middela ◽  
Gitakrishnan Ramadurai
Keyword(s):  
Error Term ◽  
Seemingly Unrelated Regression ◽  
Trip Generation ◽  
Spatial Correlations ◽  
Large Cities ◽  
Vehicle Type ◽  
Lm Tests ◽  
Unrelated Regression ◽  
Trip Production ◽  
Being Moved

During the last two decades, there has been substantial interest in developing freight trip generation (FTG) models. Most studies consider only truck trips or convert all freight trips into equivalent truck trips. Freight in several large cities is increasingly being moved by smaller vehicles. This calls for modeling FTG by vehicle type. The present research identifies and compares establishment characteristics affecting FTG by different vehicle types. In this context, spatial correlations among nearby establishments and the error-term correlations between independent models by vehicle type become relevant. Based on the Lagrange-Multiplier (LM) tests, we develop non-spatial seemingly unrelated regression (SUR) models for freight trip production (FTP) and spatial SUR models with a spatial lag in the dependent variable to account for both spatial and error-term correlations for freight trip attraction (FTA). The results show that establishment type and size affect FTG by different vehicle types.

A Note on the Efficiency of Seemingly Unrelated Regression

1988 ◽  
Vol 42 (2) ◽  
pp. 137-139 ◽  
Author(s):  
James K. Binkley ◽  
Carl H. Nelson
Keyword(s):  
Seemingly Unrelated Regression ◽  
Unrelated Regression

Workplace disability and job satisfaction in Britain: A co-worker test?

2021 ◽  
pp. 0143831X2110142
Author(s):  
Getinet Astatike Haile
Keyword(s):  
Job Satisfaction ◽  
Negative Relationship ◽  
Organisational Culture ◽  
Seemingly Unrelated Regression ◽  
Unrelated Regression ◽  
Significant Negative Relationship ◽  
Using Data

The article examines the link between workplace disability (WD) and workplace job satisfaction (JS) using data from WERS2011. Controlling for a rich set of workplace characteristics including organisational culture, the study finds a significant negative relationship between JS and the share of disabled respondents within workplaces. Notably, Seemingly Unrelated Regression (SUR)-based analysis distinguishing between disabled and non-disabled respondents reveals that the negative relationship found is specific to non-disabled respondents. Moreover, disability equality policies are found to be significantly positively related with disabled respondents’ JS while they are negatively related with the JS of their non-disabled counterparts. The article ponders if there is a co-worker aspect to the WD–JS link and whether HR policies may need to take heed of co-worker dynamics in this respect.

Determinan Kelaparan di Indonesia Tahun 2015-2019

2021 ◽  
Vol 2021 (1) ◽  
pp. 547-556
Author(s):  
Daniel M V Mone ◽  
Efri Diah Utami
Keyword(s):  
Sustainable Development ◽  
Sustainable Development Goals ◽  
Fixed Effect Model ◽  
Fixed Effect ◽  
Seemingly Unrelated Regression ◽  
Unrelated Regression ◽  
Effect Model ◽  
Development Goals

Sustainable Development Goals (SDGs) adalah sebuah perencana aksi berskala global yang disepakati oleh para pemimpin dunia, termasuk Indonesia dengan tujuan mendorong pembangunan sosial, ekonomi dan lingkungan hidup. Salah satu dari 17 tujuan SDGs adalah mengakhiri kelaparan. Berdasarkan data yang dirilis Badan Pusat Statistik, salah satu pendekatan untuk mengukur tingkat kelaparan adalah proporsi penduduk dengan asupan kalori minimum di bawah 1400 kkal/kapita/hari.  Proporsi penduduk dengan asupan kalori minimum di bawah 1400 kkal/kapita/hari di Indonesia masih cukup tinggi dan terus mengalami peningkatan dari tahun 2017 hingga 2019. Penelitian ini bertujuan untuk menganalisis bagaimana gambaran umum dari tingkat kelaparan dan variabel-variabel yang diduga mempengaruhinya, serta  bagaimana pengaruh variabel-variabel tersebut terhadap tingkat kelaparan di Indonesia tahun 2015-2019. Hasil dari penelitian ini dapat digunakan untuk merumuskan kebijakan-kebijakan guna penuntasan kelaparan di Indonesia. Metode analisis yang digunakan adalah regresi data panel dengan menggunakan  fixed effect model yang diestimasi dengan metode Seemingly Unrelated Regression (SUR). Hasil dari penelitian ini menunjukkan bahwa variabel yang berpengaruh signifikan terhadap tingkat kelaparan adalah pengeluaran makanan dan harga beras, sedangkan jumlah penduduk miskin dan pendapatan perkapita tidak berpengaruh signifikan.

scholarly journals Robust Bayesian seemingly unrelated regression model

2018 ◽  
Vol 34 (3) ◽  
pp. 1135-1157
Author(s):  
Chamberlain Mbah ◽  
Kris Peremans ◽  
Stefan Van Aelst ◽  
Dries F. Benoit
Keyword(s):  
Regression Model ◽  
Seemingly Unrelated Regression ◽  
Unrelated Regression ◽  
Seemingly Unrelated Regression Model

scholarly journals ELASTISITAS HARGA TERHADAP PENAWARAN OUTPUT DAN PERMINTAAN INPUT USAHATANI JAGUNG DI KABUPATEN GROBOGAN, JAWA TENGAH

2020 ◽  
Vol 22 (2) ◽  
pp. 213
Author(s):  
Dewi Sahara ◽  
Tota Suhendrata
Keyword(s):  
Seemingly Unrelated Regression ◽  
Unrelated Regression

Permintaan jagung cenderung meningkat, namun harganya juga relatif berfluktuasi. Penelitian ini bertujuan untuk mengetahui pengaruh perubahan harga output dan harga input terhadap penawaran jagung dan permintaan input produksi. Kegiatan dilaksanakan pada bulan September – Nopember 2016 dengan metode survey terhadap 30 petani jagung di Desa Boloh, Kecamatan Toroh, Kabupaten Grobogan.  Data yang dikumpulkan meliputi data karakteristik rumah tangga, jumlah dan harga input, jumlah dan harga jagung. Data dianalisis dalam bentuk pangsa biaya menggunakan metode <em>Seemingly Unrelated Regression</em> (SUR). Hasil penelitian menunjukkan bahwa penawaran output terhadap harga sendiri bersifat elastis dengan tanda positif, sedangkan terhadap harga input bertanda negatif dan bersifat inelastis, kecuali terhadap permintaan pupuk Urea.  Elastisitas permintaan input terhadap harga sendiri bertanda negatif dan inelastis kecuali terhadap permintaan pupuk Urea dan tenaga kerja bersifat elastis, sedangkan terhadap harga input lainnya besaran dan tandanya bervariasi.  Luas areal tanam bersifat inelastis terhadap permintaan input produksi. Demikian pula dengan pendidikan dan pengalaman usahatani bersifat inelastis kecuali terhadap permintaan tenaga kerja bersifat elastis. Oleh karena itu untuk meningkatkan produksi jagung dapat dilakukan dengan meningkatkan harga jagung, memperluas areal tanam dan meningkatkan kapabilitas sumberdaya petani.

scholarly journals The Impact of Financial Development on Economic Growth as Countries Develop Financially and Economically: WAEMU Countries Case

2018 ◽  
Vol 5 (5) ◽  
pp. 83
Author(s):  
Daouda Coulibaly
Keyword(s):  
Financial Development ◽  
West African ◽  
Seemingly Unrelated Regression ◽  
Per Capita Gdp ◽  
Real Gdp ◽  
Unrelated Regression ◽  
Cointegration Tests ◽  
Real Gdp Per Capita ◽  
Per Capita ◽  
The Impact

We analyse financial development’s impact on real gross domestic product per capita in seven West African Economic and Monetary Union (WAEMU) countries from 1970 to 2014. We assume that income and financial development process converge to USA, France and Japan’s levels respectively. An analysis of the unit root and cointegration tests revealed non-stationary and cointegrated series. Estimates are based on the Dynamic Seemingly Unrelated Regression method (DSUR). Our study shows that, (i) the effect of financial development on real per capita GDP improves in WAEMU countries as the latter converge financially to their respective levels in USA, France and Japan; (ii) the effect of financial development on real GDP per capita decreases in the WAEMU countries as they grow economically to reach USA, France and Japan’s income levels; (iii) the degree of the effect of financial development on real per capita GDP in the case of financial systems is stronger than that of the convergence of income.

scholarly journals MANAGING BRANDS’ POPULARITY ON FACEBOOK: POST TIME, CONTENT, AND BRAND COMMUNICATION STRATEGIES

2019 ◽  
Vol 34 (2) ◽  
pp. 185 ◽  
Author(s):  
Tri Hanifawati ◽  
Utan Sahiro Ritonga ◽  
Euis Evi Puspitasari
Keyword(s):  
Social Media ◽  
Significant Influence ◽  
Research Method ◽  
Communication Strategies ◽  
Seemingly Unrelated Regression ◽  
Review Of The Literature ◽  
Purchasing Intention ◽  
Unrelated Regression ◽  
Food And Beverage ◽  
Time Information

Introduction: A brand’s popularity on social media affects its customers’ purchasing intention and purchasing decision. Background Problem: A review of the literature shows that a brand’s popularity on social media has a secure connection with its content and the time information about it is posted; allegedly the brand’s interactions are also influential. Indicators of its popularity include the number of likes, shares, comments, and views for it. Novelty: Previous brand popularity studies were limited to the features of likes, comments, and shares as a function of the content and time, and OLS was commonly used. However, this study adds the views feature and the function of the administrator’s comments to complete the gap. GLS is used as the method of analysis. Research Method: Data are collected through the observation of six top international food and beverage products’ categories on the Facebook fan page. The data were analyzed using the Seemingly Unrelated Regression (SUR), and the Mann-Whitney and Kruskal-Wallis methods. Findings: The study’s findings shows that video and the day to post have a significant influence and increase the number of likes, shares, comments, and views. A caption only shows significance to increase the number of likes and shares. The hour has a significant effect on comments and shares. The time of posting indicates that posting on weekdays and during busy periods is more effective for increasing the popularity of brands. The administrator’s comments significantly influence the increase in the number of comments and views, while two-way communication is more significant for increasing a brand’s popularity. Conclusion: These findings provide a deeper insight to help managers to improve their brand’s popularity on social media by exploring how brands manage their fan pages.

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