Yi Zhang

This study examines how chief executive officer overconfidence can influence the quantity, quality and direction of corporate innovation using Chinese firms for the period 2009–2016. Our results suggest that overall, CEO overconfidence has a positive impact on firm innovation productivity. Furthermore, this effect is significant for Chinese non-SOEs but not for Chinese SOEs. Specifically, an overconfident CEO can facilitate firm innovation in new technological areas but not in the firm’s existing areas. Additionally, we find that internal controls can regulate the relationship between CEO overconfidence and innovation. Interestingly, when the internal control level is too high or too low, the correlation between CEO overconfidence and innovation productivity is not significant.

© 2016 IOP Publishing Ltd.Few-layer thick MoSe2 and WSe2 possess non-trivial spin textures with sizable spin splitting due to the inversion symmetry breaking embedded in the crystal structure and strong spin-orbit coupling. We report a spin-resolved photoemission study of MoSe2 and WSe2 thin film samples epitaxially grown on a bilayer graphene substrate. We only found spin polarization in the single-and trilayer samples-not in the bilayer sample-mostly along the out-of-plane direction of the sample surface. The measured spin polarization is found to be strongly dependent on the light polarization as well as the measurement geometry, which reveals intricate coupling between the spin and orbital degrees of freedom in this class of material.

Wang Ming and the pursuit of poetic beauty show other Tang poets, the pastoral poetry, from the clever to the shape of early words, becomes the Xing as exquisite mood to create. Wang specializes in the performance of the empty mountains, the quiet beauty, Meng Cheng in the writing scene in rivers and lakes of pure pale superior; to Wang Meng as the center, forming a landscape of poetry similar to Tang Poetry. His poetry, recluse by the wind and Zen influenced thinking, feelings are willing to lonely landscape of silent contemplation and meditation into one, God will in the matter, over into the Zen can be heard on the air in quiet turbulence, the blazing plain deep. There is a dilute ethereal ethereal charm. Poetry is considered authentic ancient landscape

"The Voice of the Tang Dynasty," the strong voice of the times, the pride of Tang, Gao Bing in "Poetry is the sound" touted in the "Rhythm pure finish" is a refined aesthetic qualities of Tang poetry, established the Ming Dynasty. " Tang poetry must be "the aesthetic ideal. Ming Tang on the physical tone, trying to implement Sheng Tang wonderful rhyme poems for the rule-based method, resulting in obtaining the fur and missing the spirit of the abuse. If designed as Fengshen on the rise and poetry, the Tang Dynasty dance sound of high performance flow away life Charm, can directly show the reader the feeling and imagination, just like the sound of the air, the flower of the mirror is a difficult to explain in words of rhyme outside the cause, that is charm. The poetry of Prime Tang Dynasty, because of based on both rhythm and spirit, was believed the pure sound of Tang Voice. GAO Bing regarded "pure sound" as the aesthetic characteristic, and set up the artistic ideal of Ming Dynasty, which poems renown in the Prime Dynasty. From the stylistic mode, Ming People interpreted the voice of Prime Tang Dynasty into the poetry rhythm, but it resulted that spirit of poem was lost. From the romantic charm, they emphasized brilliance life spirit of the Prime Tang poetry, and made it to be the artistic state that difficult to arrive