We propose a new, rational stock-price bubble that is able to generate recurringly explosive and stochastically deflating trajectories. Our flexible bubble process entails stock-price volatility dynamics that are consistent with real-world data. To demonstrate this, we fit our bubble...

The paper studies the relation between the US-Dollar/Euro exchange rate and US and euro area interest rates during normal and crisis times. We describe each asset price within a multifactor model and identify the causal contemporaneous relations through heteroskedasticity. We find that US rates...