Suchergebnisse

The China Labor-force Dynamics Survey (CLDS), launched by Sun Yat-Sen University, is the first national longitudinal social survey targeted at the labor force in China. Using a rotating panel design, the survey is conducted every two years and has accumulated three waves of data now. In this article, we introduce the theoretical background, sample design, and implementation of the survey. We also summarize some scholarly themes which CLDS can be applied to by presenting descriptive statistical results.

Air pollution and lung cancer are closely related. In 2013, the World Health Organization listed outdoor air pollution as carcinogenic and regarded it as the most widespread carcinogen that humans are currently exposed to. Here, grey correlation and data envelopment analysis methods are used to determine the pollution factors causing lung cancer among residents in Nanchang, China, and identify population segments which are more susceptible to air pollution. This study shows that particulate matter with particle sizes below 10 micron (PM10) is most closely related to the incidence of lung cancer among air pollution factors including annual mean concentrations of SO2, NO2, PM10, annual haze days, and annual mean Air Pollution Index/Air Quality Index (API/AQI). Air pollution has a greater impact on urban inhabitants as compared to rural inhabitants. When gender differences are considered, women are more likely to develop lung cancer due to air pollution. Smokers are more likely to suffer from lung cancer. These results provide a reference for the government to formulate policies to reduce air pollutant emissions and strengthen anti-smoking measures.

AbstractWe examine how US mutual funds that invest domestically make portfolio adjustments by incorporating US‐listed foreign stocks (cross‐listed stocks) when faced with US market economic policy uncertainty. We document a positive association between US economic policy uncertainty and US mutual funds' weight of cross‐listed stocks, and find that the effect is concentrated in funds that mainly invest in the US domestic market. The findings are not sensitive to the instrumental variable approach, model specification, sampling, variable definition, and controlling for macro characteristics. Funds with higher weight of cross‐listed foreign stocks when US economic policy uncertainty increases outperform other funds, indicating the rationality of such an investment strategy. A long‐short portfolio generates 3.4% annualized abnormal return in the immediate following quarter. Our study shields light not only on the international diversification benefit of US‐listed foreign stocks but also on the importance of capital market openness for domestic investors.