Empirical Analysis on Regression Model Based on Time Series and Cross Section Data of Hot-Rolled Coil Price

2012 ◽  
Vol 198-199 ◽  
pp. 876-879
Author(s):  
Juan He ◽  
Xin Ma

This paper, considering the lack of empirical analysis on price risk of inventory based on large-sample, introduces factor analysis method, multiple regression method and SPSS 17.0 to make an empirical analysis on hot-rolled coil price forecasting model by analyzing the characteristics of its price fluctuation. The results show that there is small difference between forecast result and the actual one and that this forecast method is feasible.

ILR Review ◽  
1983 ◽  
Vol 36 (2) ◽  
pp. 199-213 ◽  
Author(s):  
Ronald G. Ehrenberg ◽  
Daniel R. Sherman ◽  
Joshua L. Schwarz

This paper develops and illustrates the use of two methodologies to analyze the effect of unions on productivity in the public sector. Although the methodologies are applicable to a wide variety of public sector functions, the focus of the paper is on municipal libraries because of the availability of relevant data. The empirical analysis, which uses 1977 cross-section data on 260 libraries, suggests that collective bargaining coverage has not significantly affected productivity in municipal libraries.


2020 ◽  
Vol 9 (3) ◽  
pp. 126-137
Author(s):  
I Wayan Suparta ◽  
Ahmad Dhea Pratama

This study aims to research the causality relationship between industrial agglomeration in labor, fisheries production, and fisheries households in Tanggamus district. The agglomeration index measured using the Balassa Hoover Index analysis tool and Geographic Information System (GIS) using Geoda. The data used are secondary data obtained directly from the Central Statistics Agency (BPS), the Department of Fisheries and Maritime Affairs of Tanggamus Regency. The number of cross-section data is 20 districts in the period 2012-2016. analyzed using the Granger Causality Analysis method. The Hoover Ballassa index results show a strong degree of agglomeration in only 6 districts. The results of the analysis of the relationship between states of origin state that there is a unidirectional causality between the agglomeration and labor variables, which statistically significantly influence the agglomeration and do not apply otherwise. Unidirectional causality occurs between agglomeration variables and fisheries production only fisheries production which statistically significantly influences agglomeration and does not apply vice versa. Unidirectional causality occurs between agglomeration variables and fisheries households ie only fishery households that statistically significantly influence agglomeration and do not apply otherwise.


Econometrica ◽  
1969 ◽  
Vol 37 (3) ◽  
pp. 552
Author(s):  
V. K. Chetty

Atoms ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 31
Author(s):  
Ghanshyam Purohit

We report triple differential cross-sections (TDCSs) for the electron impact single ionization of tungsten atoms for the ionization taking place from the outer sub shells of tungsten atoms, viz. W (6s), W (5d), W (5p) and W (4f). The study of the electron-induced processes such as ionization, excitation, autoionization from tungsten and its charged states is strongly required to diagnose and model the fusion plasma in magnetic devices such as Tokamaks. Particularly, the cross-section data are important to understand the electron spectroscopy involved in the fusion plasma. In the present study, we report TDCS results for the ionization of W atoms at 200, 500 and 1000 eV projectile energy at different values of scattered electron angles. It was observed that the trends of TDCSs for W (5d) are significantly different from the trends of TDCSs for W (6s), W (5p) and W (4f). It was further observed that the TDCS for W atoms has sensitive dependence on value of momentum transfer and projectile energy.


1986 ◽  
Vol 94 (1-4) ◽  
pp. 49-52 ◽  
Author(s):  
R. C. Hertzog ◽  
P. D. Soran ◽  
J. S. Schweitzer

2010 ◽  
Vol 68 (9) ◽  
pp. 1656-1661 ◽  
Author(s):  
M.S. Uddin ◽  
M.R. Zaman ◽  
S.M. Hossain ◽  
I. Spahn ◽  
S. Sudár ◽  
...  

2012 ◽  
Vol 7 (2) ◽  
pp. 203-222 ◽  
Author(s):  
Michael Beenstock ◽  
Dan Feldman ◽  
Daniel Felsenstein

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