The Impact of Technology Adoption on Market Structure
研究银行采用自动柜员机（ATM）对本地银行市场集中度的影响，发现大银行采用ATM会提高市场集中度，小银行采用则会降低集中度。
This paper examines the impact of bank adoptions of automated teller machines (ATMS) on subsequent levels of concentration in local banking markets. The findings suggest that banks have had some success in using ATMs to attract customers from competitors. As a consequence, technology adoption's impact on market structure depends upon whether it is the larger or smaller firms within the market that adopt the new technology. Large firm adoptions increase concentration levels, while small firm adoptions tend to reduce them. The evidence also suggest that a state of structural disequilibrium seems to be characteristic of banking markets. Copyright 1990 by MIT Press.