We study the asset-pricing implications of changes in the variety of consumption goods which happens through free entry and exit of firms. Fluctuations in varieties drive a wedge between the measured and model-based (including variety growth) consumer price index making the pricing kernel as...

We generalize a simple New Keynesian model and show that a flattening of the Phillips curve reduces the size of fiscal multipliers at the zero lower bound (ZLB) on the nominal interest rate. The factors behind the flatting are consistent with micro- and macroeconomic empirical evidence: it is a...

Applications in modern macroeconomics increasingly require non-linear solution methods. Our paper studies the consequences of the widely used Calvo pricing mechanism in a non-linear world. We introduce the concept of the stability region as a non-linear counterpart to the determinacy region. We...

We study the asset-pricing implications of changes in the variety of consumption goods which happens through free entry and exit of rms. Fluctuations in varieties drive a wedge between the measured and model-based (including variety growth) consumer price index making the pricing kernel as well...