Competing risks models are fundamentally unidentified. This paper derives bounds for aspects of the underlying distributions under a number of different assumptions. These bounds are then applied to mortality data from the US. We find that trends in cancer show much larger improvements than was...

This paper investigates the responsiveness of household portfolios to tax incentives by exploiting a substantial tax reform that altered after-tax returns and cost of debt for a large number of households. An extraordinary panel data set that covers two years before and after the reform is used...

The objective of the paper is to investigate and compare the performance of some of the unit root tests in micro-panels which have been suggested in the literature. The framework is an autoregressive panel data model allowing for heterogeneity in the intercept but not in the autoregressive...

A problem encountered in growth empirics is that the number of explanatory variables is large compared to the number of observations. This makes it impossible to condition on all regressors when determining if a variable is important. We investigate methods used to resolve this problem: Extreme...

Previous work on board size effects in closely held corporations has established a negative correlation between board size and firm performance. We argue that this work has been incomplete in analysing the causal relationship due to lack of ownership information and weak identification...

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The Danish policy towards work-disabled persons comprise contradictory forces. The state seeks to enhance labour market integration of work-disabled persons through vocational rehabilitation. However lax job protection legislation makes it easy for employers to dismiss sick-listed employees. We...

We investigate whether job loss as the result of displacement causes ill health. In doing this we use much better data than any previous investigators. Our data are a random 10% sample of the adult population of Denmark for the years 1981-1999. For this large representative panel we have very...

We combine two techniques to consistently estimate the effect of active labour market programmes and, in particular, active labour market policy regimes. Our aim is to explicitly estimate the threat effect of active labour market programmes. Based on Danish data (1998-2002) from administrative...

Individuals match on length and type of education. We investigate whether the systematic relationship between educations of partners is explained by opportunities (e.g. low search frictions) or preferences (e.g. complementarities in household production or portfolio optimization). We find that...