Using Norwegian register data on migrant-background individuals born 1985 to 2001 who were either native born or who immigrated as children or teens, in combination with data from the World Marriage Database, we investigate how residential partner markets and marriage behavior in countries of...

Differences in the timing and pathway into family life provide insights into the social distance between majority and immigrant-background groups. Increasing similarity in these processes across immigrant generations may indicate blurring of group distinctions. We situate our study in Norway, a...

Using Norwegian register data on all individuals born 1985 to 2000 who were either native-born or who immigrated as children or teens (N=1,013,734), the current study investigated timing of first co-residential union and choice of union type in the period 2005 through 2018. Descriptive results...

We construct linked register data on five Norwegian birth cohorts, covering: criminal charges after age 15; family characteristics and history up to age 15; and (for males) IQ test scores. A longitudinal analysis of the risk of initiation into crime in early adulthood suggests an increased risk for...

We embed a lockdown choice in a simplified epidemiological model and derive formulas for the optimal lockdown intensity and duration. The optimal policy re- ects the rate of time preference, epidemiological factors, the hazard rate of vaccine discovery, learning effects in the health care...

We contrast the canonical epidemiological SIR model due to Kermack and McKendrick (1927) with more tractable alternatives that offer similar degrees of "realism" and exibility. We provide results connecting the different models which can be exploited for calibration purposes. We use the expected...