Summary This paper investigates the contagion effects of five regional nuclear accidents, nuclear expansions, or nuclear phase‐out events or policies from 2007 to 2017 on the stock markets of the global nuclear energy markets. Contagion tests based on correlation and higher order comoments are applied to determine how these events or policy shocks affect global nuclear energy stock prices. The empirical results show that the Fukushima nuclear accident had the most significant impact on global nuclear energy markets, followed by the Korean nuclear expansion, while the German, Korean, and French nuclear phase‐out policies had the least pervasive contagion. The nonlinear dependence test detected more evidence of contagion than did the linear dependence test, indicating that both asymmetric and extremal dependences are important dimensions of measuring risk contagion in nuclear energy markets.
Under the information asymmetrical theory, the Chinese securities analysts are affected by many benefit factors, so the purpose of the study is trying to figure out what benefit elements and how to affect analysts' earnings forecasts. Using data from 2012 to 2015, the author creatively quantifies interest factors, and does the empirical analysis. Regression results indicate that the closer relationship between securities analysts and the listed companies management or institutional investors, the greater accuracy of their earnings forecasts. Besides, analysts' reputation exists a negative correlation between earnings forecasts accuracy. Furthermore, securities' underwriting relationships have no significant influence on the accuracy of analysts' earnings forecasts, but the underwriting analysts are more likely to overestimate earnings per share of the target companies.
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