This paper shows how and when it is possible to obtain a mapping from a quarterly DSGE model to a monthly specification that maintains the same economic restrictions and has real coefficients. We use this technique to derive the monthly counterpart of the Gali et al (2011) model. We then augment...

We study a prototypical new-Keynesian model in which agents are averse to ambiguity, and where the ambiguity regards the monetary policy rule. We show that ambiguity has important effects even in steady state, as uncertainty about the policymaker’s response function affects the rest of the...

This paper investigates the role of the rise of services in the narrowing of gender gaps in hours and wages in recent decades. We document the between-industry component of the rise in female work for the U.S., and propose a model economy with goods, services and home production, in which women...

This paper presents a simple macroeconomic model where government spending affects aggregate demand directly and indirectly, through an expectational channel. Prices are fully flexible and the model is static, so intertemporal issues play no role. There are three important elements in the model:...

This paper analyzes optimal unemployment insurance (UI) over the business cycle. We consider a general matching model of the labor market. For a given UI, the economy is efficient if tightness satisfies a generalized Hosios condition, slack if tightness is too low, and tight if tightness is too...

Skill erosion during unemployment was of particular concern as unemployment duration increased in the Great Recession. I argue that it generates an externality in job creation: firms ignore how their hiring decisions affect the unemployment pool’s skill composition, and hence the expected...

When workers are exposed to human capital depreciation during periods of unemployment, hiring affects the unemployment pool’s composition in terms of skills, and hence the economy’s production potential. Introducing human capital depreciation during unemployment into an otherwise standard...

In this paper I argue that the financial crisis is likely to have a long term impact on the level of labour productivity in the UK while leaving the long run growth rate unaffected. Based entirely on pre-crisis data, and using a two-sector growth model, I project the future growth rate of GDP...

The size and sign of the government spending multiplier crucially depends on how the spending is financed and how consumers respond to implied future tax increases. I investigate this issue in an estimated New Keynesian DSGE model with distortionary labor and capital taxes and, importantly, with...

Changes in the stock of inventories are important for fluctuations in aggregate output. However, the possibility that firms do not sell all produced goods and inventory accumulation are typically ignored in business cycle models. This paper captures this with a goods-market friction. Using US...