Recent advances in the econometric modelling of count data have often been based on the generalized method of moments (GMM). However, the two-step GMM procedure may perform poorly in small samples, and several empirical likelihood-based estimators have been suggested alternatively. In this paper...

In a large sample of Swedish unemployed disabled workers, the workers participate in between zero and ten policy programmes during their unemployment spell. Clustering of programmes to about half of the sample is prominent. <p> The number of programmes is modelled as a standard count data model, as...</p>

This paper studies the effects of day care exposure on behavioral problems and mental health as well as on various aspects of physical health, at various ages during childhood. We draw on a unique set of comprehensive individual-level out-patient and inpatient health care register data from...

The paper studies childhood migrants and examines how age at migration affects their ensuing integration at the residential market, the labor market, and the marriage market. We use population-wide Swedish data and compare outcomes as adults among siblings arriving at different ages in order to...

This paper evaluates how access to paid parental leave affects labor market entrance for immigrating mothers with small children. Paid parental leave together with job protection may increase labor force participation among women but if it is too generous it may create incentives to stay out of...

As of the end of 2017, 3.4 million Syrian refugees lived in Turkey. These refugees left a country where the health system was completely broken. Several studies report that Syrian refugees faced numerous diseases during their exodus, brought certain infectious diseases to the hosting...

Millions of children are forcibly displaced around the world, making child labor a serious risk. However, little is known about this topic due to the difficulty of finding representative datasets for this population and information on child labor. In this study, we use a representative dataset...

We study the spillover effects of immigration enforcement policies on children's human capital. Exploiting the temporal and geographic variation in the enactment of immigration enforcement policies, we find that English language skills of US-born children with at least one undocumented parent...

I study the effects of naturalizations on labor market outcomes and family formation. The results show that naturalizations are associated with improving economic outcomes for immigrants from outside the OECD. The strength of the correlation varies depending on the country group and gender. A...

I develop a new approach for sample selection problems that allows parametric forms of any type to be chosen for both for the selection and the observed variables. The Generalized Parametric Selection (GPS) model can incorporate both duration and count data models, unlike previous parametric...