In order to compare the clinical characteristics of familial and non-familial bullous lichen planus (BLP), the archival data of 36 BLP patients with positive family history and 21 BLP patients with negative family his...In order to compare the clinical characteristics of familial and non-familial bullous lichen planus (BLP), the archival data of 36 BLP patients with positive family history and 21 BLP patients with negative family history diagnosed according to the clinical features and histopathology were collected in our department from 1956 to 2003. The clinical features were analyzed and compared. There were significant differences between familial and non-familial BLP in age of onset, duration of disease and extension of eruption (P<0.01). It was concluded that familial BLP appeared to differ from the non-familial form in its earlier age of onset, longer duration of the disease, more extensive eruption and more tendency to involve nails. Hereditary factors may play a role in the pathogenesis of familial BLP.展开更多
Using a sample of Chinese family firms listed from 1999 to 2014, we investigate the relationship between non-family leadership and firm performance. We find that firms with a non-family member as board chair perform s...Using a sample of Chinese family firms listed from 1999 to 2014, we investigate the relationship between non-family leadership and firm performance. We find that firms with a non-family member as board chair perform significantly worse than firms whose chair belongs to the family. Moreover, we show that the underperformance of nonfamily-chair firms is more pronounced when firms are under weaker outside monitoring and when the controlling families care less about family business longevity. The negative effect of a non-family chair is robust to a variety of endogeneity tests. We also dismiss alternative explanations other than concern for reputation. Overall, our empirical results suggest that the social norms regarding family reputation are important in shaping the controlling shareholders＇ expropriation incentives and firm performance.展开更多
文摘In order to compare the clinical characteristics of familial and non-familial bullous lichen planus (BLP), the archival data of 36 BLP patients with positive family history and 21 BLP patients with negative family history diagnosed according to the clinical features and histopathology were collected in our department from 1956 to 2003. The clinical features were analyzed and compared. There were significant differences between familial and non-familial BLP in age of onset, duration of disease and extension of eruption (P<0.01). It was concluded that familial BLP appeared to differ from the non-familial form in its earlier age of onset, longer duration of the disease, more extensive eruption and more tendency to involve nails. Hereditary factors may play a role in the pathogenesis of familial BLP.
文摘Using a sample of Chinese family firms listed from 1999 to 2014, we investigate the relationship between non-family leadership and firm performance. We find that firms with a non-family member as board chair perform significantly worse than firms whose chair belongs to the family. Moreover, we show that the underperformance of nonfamily-chair firms is more pronounced when firms are under weaker outside monitoring and when the controlling families care less about family business longevity. The negative effect of a non-family chair is robust to a variety of endogeneity tests. We also dismiss alternative explanations other than concern for reputation. Overall, our empirical results suggest that the social norms regarding family reputation are important in shaping the controlling shareholders＇ expropriation incentives and firm performance.
