We study the implications of having different sources of nominal rigidities on the relationship between productivity growth and shocks volatility in a model with pro-cyclical R&D and imperfect competition in goods and labour markets. We show that the effects of uncertainty on long-term growth...

We study the relationship between growth and variability in a DSGE model with nominal rigidities and growth driven by learning-by-doing. We show that this relationship may be positive or negative depending on the impulse source of fluctuations A key role is also played by the Frisch elasticity...