We study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new en-trant....

We study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new entrant....

Drawing on identity and social comparison theories, we propose and test a model of motivation to lead based on two types of self-to-role comparisons (i.e., self-comparisons with specific leaders and with more abstract representations of the leadership role). We propose that these comparisons...