Economies or diseconomies of scope in the EU banking industry?
研究欧盟银行范围经济与不经济，发现成本上存在范围经济，但收入和利润上存在范围不经济；分离商业与投资活动会带来成本低效但收入和利润高效。
Abstract Banks’ business models are assumed to affect efficiency, as documented in the banking supervisory priorities of the European Union (EU) for 2016–2018 and the 2014 structural reform proposal for the EU banking sector. We investigate evidence of economies and diseconomies of scope for the EU. We find cost economies of scope and revenue diseconomies of scope, resulting in profit diseconomies of scope. Separating commercial from investment activities generates economic inefficiencies on costs but efficiencies on revenues and profits. Economies of scope are affected by bank size, liquidity, competition in the banking industry, and the European sovereign debt crisis.