Introduction: Widespread immunization is critical to bringing the COVID-19 pandemic an end. The objective of this cross-sectional data analysis was investigate impact vaccination on frequency occurrence and presence its symptoms clinical presentations. Material methods: This a retrospective, study, analysing medical records patients hospitalized at Dr Antoni Jurasz University Hospital No. 1 in ...

Delayed Entry into First Marriage: Further Evidence on the Becker-Landes-Michael Hypothesis In their pioneering research, Becker, Landes and Michael (1977) found that beyond age 30 there is a positive relationship between women’s age at first marriage and marital instability. They interpreted this finding as a “poor-match” effect emerging as the biological clock begins to tick. In analyses of t...

Income Pooling and Household Division of Labor: Evidence from Danish Couples If income pooling indicates primary earners’ willingness to trade part of their income with spouses who earn less and work more in household production, then among specialized couples income pooling will be positively associated with the price of commercial domestic services, substitutes for household production. In li...

This paper investigates the impact of demographic shocks on optimal decisions about saving, life insurance, and, most centrally, asset allocation. We analyze these choices within the framework of a life-cycle model that features exogenous changes in family composition, heterogeneity in lifetime income, and uninsurable fluctuations in earnings and medical costs. Our analysis indicates that marit...

Recent theoretical contributions depart from the usual practice of treating individual attitude endowments as a black box, by assuming that these are shaped by the attitudes of parents and other role models. Attitudes include fundamental preferences such as risk preference, and crucial beliefs about the world, such as trust. This paper provides evidence on the three main mechanisms for attitude...

On the Origin of the Family This paper presents an overlapping generations model to explain why humans live in families rather than in other pair groupings. Since most non-human species are not familial, something special must be behind the family. It is shown that the two necessary features that explain the origin of the family are given by uncertain paternity and overlapping cohorts of depend...

Single Mothers and Work Western countries differ greatly in the extent to which single mothers participate in the labor market. Using LIS data for 15 countries, I propose and estimate a simple structural model of labor supply that incorporates the main variables that influence the work decision for single mothers. The results suggest that a large part of the cross country variation in the emplo...

The Effects of In-Work Benefit Reform in Britain on Couples: Theory and Evidence This paper examines the effects of the Working Families’ Tax Credit (WFTC) on couples in Britain. We develop a simple model of household decisions which explicitly accounts for the role played by the tax and benefit system. Its main implications are then tested using panel data from the British Household Panel Surv...

Criminal Victims, Victimized Criminals, or Both? A Deeper Look at the Victim-Offender Overlap Offenders are more likely than non-offenders to be victims, and victims are more likely than non-victims to be offenders. The overlap between offenders and victims is not well understood in criminology, and in the economics of crime the stylized empirical fact is even widely ignored. The paper gives a ...