This paper constructs a simple endogenous growth model featuring the product cycle, i.e., the transition from monopoly to perfect competition, and studies its implications for both asset market and business cycle statistics. I find that the product cycle is a powerful amplification mechanism;...

This paper proposes a structural explanation for a news shock. My hypothesis is that a surprise, research and development sector-specific productivity shock may be identified and labeled as news by prominent empirical research in the literature. To examine this hypothesis, I construct a simple...

This paper studies a model that includes investment-specific technological shocks, a variable capacity utilization rate, and endogenous product entry subject to sunk product development costs. These factors constitute a powerful amplification mechanism as they interact with each other. The model...

Most of the theoretical work in the news shock literature abstracts away from structural explanations, assuming instead that news is a pure signal giving agents advance notice that aggregate technology will undergo exogenous change at some future point. This paper proposes that a surprise...

This paper shows that the empirically documented disinflationary nature of news shocks is consistent with the implications of a sensibly modified version of a New Keynesian model, even if capital is introduced to the model. The modification proposed in the current paper, however, is different...

This paper proposes an approximate solution of firm's optimal inattentive length in a standard macroeconomic model. The approximate solution conceptually fits a sticky-information model better, and predicts empirically more plausible inattentive length than the one proposed by Reis (2006)