The degree of scale economies and scale economies of bank industral

摘要

This essay will discuss scale economies of bank industry. First, we will point out the characteristics of scale economies of bank industry. After the concepts of subadditivikty of costs function, declining average costs, declining marginal costs and the degree of scale economies have been introduced, some crikterions are given. We will use this method to study the model in (3). Finally, we will construct the degree of scale economics of bank industry and give some criterions.