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This paper analyzes efficiency and profitability in the Swiss banking sector over the period 1997-2019. We find strong … evidence for scale economies: for most banks in the sample, efficiency and profitability increase with bank size. Using an … instrumental variables strategy for a subset of geographically restrained banks, we find that the effect of size on efficiency and …
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Several studies have been conducted to analyze whether a regulation of the postal sector as a monopoly is actually efficient by examining its cost structure. The authors detected significant scale economies only in the delivery function and hence demonstrated a necessity for competition in the...
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