We study the time-varying effects of Tobin's q and cash flow on investment dynamics in the USA using a vector … variation over time of the response of investment to shocks in both variables. The time-varying sensitivity of investment to a … show that, although Tobin's q and cash flow are complementary sources of information for investment decisions, their …

breaks) in the volatility of financial time series. Comparative study of three techniques: ICSS, NPCPM and Cheng's algorithm … breaks in volatility, while Cheng's technique works well only when a single break occurs. …