Despite the widespread belief that technology shocks are the main source of business fluctuations, recent empirical studies find that an investment efficiency shock mainly drives such fluctuations and reflects financial conditions for investment. This poses the question as to what is the major...

This paper proposes a new econometric framework for estimating trend inflation and the slope of the Phillips curve with a regime-switching model. As a unique aspect of our approach, we assume regimes for the trend inflation at one-percent intervals, and estimate the probability of the trend...