Using the split share structure reform in China as a natural experiment, we study how changes in controlling shareholder incentive affect the pay-for-performance sensitivity. The reform converts the shares owned by controlling shareholders from non-tradable to tradable shares. The removal of...

We present an exact solution of the q-state Potts model on a class of generalized Sierpinski fractal lattices. The model is shown to possess an ordered phase at low temperatures and a continuous transition to the high temperature disordered phase at any q ≥ 1. Multicriticality is observed in...

The latest researches have explored the topic of complex network control based on the linear system control theory. These researches aim to control all nodes of a network. However, in many cases it is sufficient to control just a part of nodes. Because a community usually plays an independent...

Domain reversal was performed on both near-stoichiometric and heavily Mg-doped lithium niobate crystals. H+ related defect structures in these two types of crystals were studied through the infrared absorption spectra. It is found that the intensity of some decomposed peaks of absorption band...

We study the ground-state properties of frustrated Heisenberg ferrimagnetic ladders with antiferromagnetic exchange interactions and two types of alternating sublattice spins. In the limit of strong rung couplings, we show that the mixed spin-1/2 and spin-1 ladders can be systematically mapped...