impulse response analysis
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2021 ◽  
Vol 8 (4) ◽  
pp. 361-373
Author(s):  
Xie Guoe ◽  
Yu Jia

Based on the statistical data from 1995 to 2018, this paper uses regression analysis, error correction model and impulse response analysis to empirically test the specific impact of import trade structure on Shanghai's technological progress. The results show that the decrease in the proportion of intermediate goods imports promotes the technological progress, while the increase in the proportion of capital goods imports has a significant positive impact on Shanghai's technological progress. The relationship between FDI and technological progress in Shanghai is negative. The development of Finance and the increase of patent authorization promote the technological progress of Shanghai. The stability test of VEC model shows that there is a long-term equilibrium and stable relationship among the variables. Impulse response analysis shows that there is a bidirectional interaction between the import trade structure and Shanghai's technological progress. Therefore, we should further reduce the quantity of intermediate goods with low technology content and increase the import volume of capital goods appropriately. At the same time, we should attach importance to innovation based on introduction and absorption, and use the platform of China International Import Expo to attract foreign enterprises to widely display new products, new technologies and new services of various countries, so as to help high-quality development in the future.


2021 ◽  
pp. 29-57
Author(s):  
Anastasiou Athanasios ◽  
Kalligosfyris Charalampos ◽  
Kalamara Eleni

The purpose of this paper is tο examine the causality relationships and the degree of interdependence, between the level of tax evasion in Greece and a set of deterministic factors, using annual data for the period 1995 - 2018. The research methodology employed includes testing for stationarity with the Augmented Dickey-Fuller (ADF) test, cointegration test according to Engle-Granger approach, estimation Error Correction Models (ECM) to investigate the short-run and long-run relationships, variance decomposition and impulse response analysis. The results indicate a significant interdependence, which is an important tool for pursuing a targeted and effective policy to fight tax evasion. More specifically, the survey showed that the level of tax rates, the level of unemployment, the Rule of Laws index, the level of GDP, the level of non-performing loans, the government efficiency, the corruption perception index and the level of final consumption expenditure, affect the size of tax evasion in Greece, significantly. In addition, the results of variance decomposition and impulse response analysis, support the above findings, providing a quantitative representation of the causality relationships between the factors under investigation and tax evasion.


2021 ◽  
pp. 214-225
Author(s):  
Hecong Xu ◽  
Xiaolei Xu ◽  
Zhen Wu ◽  
Haifeng Guo ◽  
Yuxi Zhang ◽  
...  

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