求助几篇sciencedirect上的英文文献~~谢谢！
1. Regret theory and the banking firm: The optimal bank interest margin
http://www.sciencedirect.com/science/article/pii/S0264999311001787

2.
Progressive taxation, tax exemption, and corporate liquidation policy
http://www.sciencedirect.com/science/article/pii/S0264999308000977

3.
Progressive taxation and the intensity and timing of investment
http://www.sciencedirect.com/science/article/pii/S0264999310001975