Innovation and Industry Bifurcation: the Evolution of R&D Strategy
通过构建包含企业进入退出和成长过程的产业演化模型，并用计算机模拟实验，研究了研发投资如何导致产业分叉为创新和模仿两类策略，以及这种分叉与景观特征、退出率和战略惯性的关系。
R&D investment can bifurcate industries into groups following innovative and imitative strategies. To examine conditions for strategic bifurcation over time, we develop a model of industry evolution, including industry entry and exit processes, as well as a firm growth process. Growth results from adaptive search over a probabilistic fitness landscape with stochastic attractors. Computer simulation experiments link the strategic bifurcation of industries to landscape features, industry exit rates and strategic inertia. The model implies that mobility barriers can arise from evolutionary and environmental sources independently of firms' defensive actions.