Research on the Characteristics of Uncertainty of China's Economic Policy

As a socialist country, China has made great progress in its economy since the implementation of the reform and opening-up policy in 1978. Economic policy plays an important role in economic development. But with the arrival of the new normal economy, slow development has become the main problem facing us now, even the downward pressure of the economy. Therefore, the Chinese government constantly adjusts its economic policies to adapt to the development of the economy. Appropriate changes in economic policies are conducive to better play the role of adjustment, but frequent changes in policies will hinder the development of the economy to a certain extent. This paper analyses the characteristics of China's EPU index tries to find the characteristics of the index and puts forward some policy recommendations. By using the GARCH model to analyze China's EPU index, we find that the index has the following characteristics: volatility clustering, autocorrelation and heteroscedasticity. And through the trend chart of the index, we can see that in recent years, China's EPU index has been improving in general

A note on inversion of Toeplitz matrices

AbstractIt is shown that the invertibility of a Toeplitz matrix can be determined through the solvability of two standard equations. The inverse matrix can be denoted as a sum of products of circulant matrices and upper triangular Toeplitz matrices. The stability of the inversion formula for a Toeplitz matrix is also considered

Rutin has anti-asthmatic effects in an ovalbumin-induced asthmatic mouse model

Purpose: To investigate the anti-asthmatic effects of the flavonoid rutin in an ovalbumin (OVA)-induced asthmatic mouse model.Methods: Asthma was induced by OVA induction. Effects of rutin (25–100 mg/kg BW) on interleukins (IL)-4, IL-5, and IL-13 and interferon (IFN)-γ in bronchoalveolar lavage fluid (BALF) and serum OVAspecific IgE levels were assessed by enzyme linked immunosorbent assay (ELISA). Airway hyperresponsiveness (AHR) was measured by determining lung compliance and airway resistance. Expression levels of p-I-κBα, p-NF-κB p65, TNF-α, and Foxp3 were also assessed. The CD4+ CD25+ Foxp3+ T regulatory cell population was determined by flow cytometry.Results: Rutin significantly (p < 0.05) decreased Th2 cytokines (IL-4, IL-5, IL-13), whereas it enhanced IFN-γ levels in BALF. Decreased OVA-specific serum IgE was also observed with improved lung histology. Rutin was effective in reducing AHR and regulating the expression levels of p-I-κBα, p-NF-κB p65, and TNF α, and also increased the CD4+ CD25+ Foxp3+ Treg cell population and Foxp3 mRNA and protein levels.Conclusion: Rutin effectively suppresses OVA-induced asthma and improves airway function by suppressing inflammatory mediators and inflammatory cell infiltration.Keywords: Asthma, CD4+ CD25+, Cytokines, Inflammation, Ovalbumin, Rutin, Protein level

Asymmetrical Power Between Internet Giants and Users in China

We find that the asymmetry of power between the Internet giants and the users, prevalent in the digital era, is deeply problematic in China in that the two key players of big data—the Internet giants and the government—are interested in exploiting the potential of big data, but the regulation of the use and application of user data is an obstacle to their goal. The Internet giants do not value the provision of transparent privacy policies and the enforcement of the policies, while the government, being an investor in and consumer of big data services, is neither interested in nor technologically capable of regulating big data technology. Moreover, there is no unified Internet governance system to solicit cooperation within the government to regulate Internet privacy. These contextual characteristics facilitate the building of the social credit system that pays limited attention to user privacy. The findings suggest that in the discussion about the political consequences of ICT development in China, we should focus on the Internet giants and their unchecked technological power instead of only the governmen