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本文使用我国22家商业银行2004~2016年度非平衡面板数据,利用两阶段广义矩估计法,研究收益多样性、杠杆率对资本缓存、风险行为和效益的影响,得出主要结论:收益多样性的银行具有更强的盈利能力,同时收益波动性大的银行具有较弱的资本缓存能力;杠杆率与资本缓存之间存在明显的正相关关系,反映出两者存在顺周期性;从事风险行为高的银行具有较好的资本缓冲能力,而效益与资本缓存和风险之间不存在明显的关系。
This paper uses unbalanced panel data of 22 commercial banks in China from 2004 to 2016 and the two-stage generalized moment estimation method to study the impact of diversification of earnings and leverage on capital buffer, risk behaviors and benefits. The main conclusions are as follows: Of the banks have stronger profitability and the banks with large earnings volatility have weaker capital buffer capabilities. There is a clear positive correlation between the leverage ratio and the capital buffer, which shows that the two are pro-cyclical and risk-taking behaviors High banks have good capital buffer capacity, while there is no obvious relationship between efficiency and capital buffer and risk.