A Dynamic Analysis of the Adoption of a New Technology: The Case of Optical Scanners
使用两个比例风险模型，研究市场结构变量如何影响食品杂货店在不同阶段采用光学扫描仪的概率，发现早期采用者特征与后期不同。
Two p roportional hazard models are used to investigate the differingeffects of marke t structure variables on the conditional probabilityof a firm initially adoptin g the new technology of optical scanners as the innovation spreads through the f ood store industry. During the early stage, leading firms with large average sto re size which are not members of chains and which operate in less concentrated m arkets with higher incomes and wage rates, tend to adopt scanners sooner. Later on, differences in seller concentration, market share, and size become less impo rtant as other firms follow prior adoptions. Copyright 1987 by MIT Press.