# In[3] NW-t检验lags=5defNWtest(a,lags=5):adj_a=pd.DataFrame(a).dropna()iflen(adj_a)>0:adj_a=np.array(adj_a.astype(float))model=sm.OLS(adj_a,[1]*len(adj_a)).fit(cov_type='HAC',cov_kwds={'maxlags':lags})returnfloat(model.tvalues),float(model.pvalues)else:return[np...
capital asset pricing modelstock returnChina’s stock marketThis paper aims at discussing the applicability of the three-factor model in China鈥檚 multiple security markets. The monthly returns of Shenzhen Main Board Market, Shanghai Stock Market, GEM Securities Market and Small and Medium Board ...
最近,有一篇新的研究论文《Evaluating Asset Pricing Models: A Revised Factor Model for China》对这个问题进行了重新审视,并提出了一个修正后的因子模型,它根据每只股票成为壳公司的概率来排除股票,而不是简单地按照规模来划分。这样,就可以避免过度排除一些正常的小盘股,并且提高了因子模型的预测能力和解释能力。
The present 4-factor model (tolerance for stress, tenacity, and goal orientation; adaptability and acceptance of change; optimism and sense of security; and trust in one's instinct) of CD-RISC showed good internal consistency, concurrent validity and consistent structure validity, and had presented...
(3) Input-output variable for production function We adopt a logarithmic C-D production function according to the previous model setting. Many researchers use a two-factor C-D production function to evaluate the TFP(Pires & Garcia, 2012; Reynès, 2019; Ishikawa, 2021; Liu & Tsai, 2021)....
5G will see a far wider range of services than 4G and industry verticals will have much higher demands, which will in turn increase the requirements on network deployment, adjustment, and O&M. Traditional device-centric network architecture and the 4G O&M model, which is reliant on manu...
and 3) the apparent efficacy of China's model of state capitalism--which seemingly served as an alternative approach to Western-style market driven economic models. Moreover, as China's capabilities continued to advance, the sense of a so-called Chinese threat emerged as if a new zero-sum ...
Accumulation model of the Sinian-Cambrian shale gas in western Hubei Province, ChinaZHAI Gangyi1,2,, , WANG Yufang1,2, , LIU Guoheng1,2, LU Yongchao3, HE Sheng3, ZHOU Zhi1,2, LI Juan1,2, ZHANG Yunxiao1,2 1. Oil & Gas Survey, China Geological Survey, Beijing 100029,...
ideas to artificial intelligence, and it can create ideal works according to our wishes. Without exaggeration, generative artificial intelligence is leading a new pattern of creation that liberates human hands.The emergence of...
Table 1 Fit statistics for confirmatory factor model Full size table Table 2 presents respondents’ levels of internalized homophobia as measured by the Internalized Homophobia Scale. The number of bisexual respondents was small, so we combined them with the gay sample in our analyses. The mean sco...