Lone mothers are overrepresented among the poor in many European countries, with detrimental consequences for them and their children. Even in Norway, which is known for its successful economic and welfare development, lone mothers were at least three times more likely to be poor than married...

Lone mothers are overrepresented among poor people in many European countries. In 1998, in Norway, a welfare reform increased the amount of benefits and introduced working requirements. Using a quasi-experimental model, Mogstad and Pronzato (2012) find a positive effect of the reform on lone...

A large proportion of divorced and separated fathers form new partnerships. The new partner's preferences are not likely to put much weight on expenditures on the man's children from his previous union. Thus, his own and his partner's income would have different impacts on his child support...

A large proportion of divorced and separated fathers form new partnerships. The new partner's preferences are not likely to put much weight on expenditures on the man's children from his previous union. Thus, his own and his partner's income would have different impacts on his child support...

We revisit the identification argument of Kirkeboen et al. (2016) who showed how one may combine instruments for multiple unordered treatments with information about individuals' ranking of these treatments to achieve identification while allowing for both observed and unobserved heterogeneity...

As an alternative to the conventional methods for measuring chronic poverty, this paper proposes an interpersonal comparable measure of permanent income as a basis for defining and measuring chronic poverty. This approach accounts for the fact that individuals regularly undertake inter-period...

We examine instrumental variables estimation in situations where the instrument is only observed for a sub-sample, which is fairly common in empirical research. Typically, researchers simply limit the analysis to the sub-sample where the instrument is non-missing. We show that when the...

This paper proposes a two-step aggregation method for measuring long-term income inequality and income mobility, where mobility is defined as an equalizer of long-term income. The first step consists of aggregating the income stream of each individual into a measure of permanent income, which...

This paper is concerned with the problem of ranking Lorenz curves in situations where the Lorenz curves intersect and no unambiguous ranking can be attained without introducing weaker ranking criteria than first-degree Lorenz dominance. To deal with such situations Aaberge (2009) introduced two...