Research Papers

The euro area has been experiencing a prolonged period of weak economic activity and very low inflation.

Some fresh reflections on ECB policy

Veiling among Muslim women is modeled as a commitment mechanism that limits temptation to deviate from religious norms of behavior. 

This paper examines the value of connections between German industry and the Nazi movement in early 1933. Drawing on previously unused contemporary sources about management and supervisory board composition and stock returns, we find that one out of seven firms, and a large proportion of the biggest companies, had substantive links with the National Socialist German Workers’ Party. Firms supporting the Nazi movement experienced unusually high returns, outperforming unconnected ones by 5% to 8% between January and March 1933. These results are not driven by sectoral composition and are robust to alternative estimators and definitions of affiliation. 

Stock Market Returns and Corporate Networks 

“The Failure of Democracy” – “The weaknesses of Weimar” Do headlines such as these suggest that the whole architecture of the first German republic was wrong, that it was doomed right from the start, that the “collapse” was unavoidable?

In the paper that we present this afternoon, Soren Johansen, Anders Rahbek, Morten Tabor, and I introduce the Qualitative Expectations Hypothesis (QEH) as a new approach to modeling macroeconomic and financial outcomes.

After re-iterating five well-known theorems about the properties of conditional expectations in stationary settings—such as providing unbiased minimum mean square error predictions despite in- complete information, and the law of iterated expectations—we clarify unpredictability and illustrate its prevalence empirically.

I have read the various conference papers and am struck by the fact that many use the (omnipresent New-Keynesian) model of an aggregate loanable funds market to diagnose secular stagnation and investigate possible remedies.

The prevailing wisdom that aggregate demand ‘shocks’ determine short-run cyclical fluctuations around a supply-determined equilibrium growth rate and an associated equilibrium unemployment rate (or NAIRU) has been called into question by various streams of literature in the last decades. Specifically, a recently revived literature on hysteresis finds significant persistence in the effects of recessions and negative aggregate demand shocks (Blanchard et al. 2015; Martin et al. 2015).

The past 30 years has witnessed a worldwide decrease in real interest rates. We demonstrate that a large part of the fall in interest rates can be explained by changes in demography, which are as the result of a sudden fall in fertility rates across all of the advanced economies in the early 1970s.

We examine the hypothesis that the slowdown in productivity following the Great Recession was in significant part an endogenous response to the contraction in demand that induced the downturn.

The concern that an economy could experience persistent, and in some sense unusual, weakness goes back to Keynes’s General Theory and led Alvin Hansen to coin the term “secular stagnation.”

This paper shows that aging has positive effect on output growth per capital at positive interest rates, due to capital deepening.

We provide a Keynesian growth theory in which pessimistic expectations can lead to very persistent, or even permanent, slumps characterized by high unemployment and weak growth.