The Effect of Anti-Abortion Legislation on Nineteenth Century Fertility

Using nineteenth century legal information combined with census information, I examine the effect of state laws that restricted American women’s access to abortion on the ratio of children to women. I estimate an increase in the birthrate of 4 % to 12 % when abortion is restricted. In the absence of anti-abortion laws, fertility would have been 5 % to 12 % lower in the early twentieth century.     

Paired domination versus domination and packing number in graphs

Journal of Combinatorial Optimization - Given a graph $$G=(V(G), E(G))$$ , the size of a minimum dominating set, minimum paired dominating set, and a minimum total dominating set of a graph G are...     

Public policy towards immigrants in poland’s shrinking cities – The case study of the city of Lomza

Some regions and cities in Poland face challenges due to an accelerating depopulation. Simultaneously, Poland is host to more than 2 million immigrants who mitigate the negative consequences of the population outflow and ageing. While bigger Polish cities adopted particular local strategies and measures addressed to migrants, the situation of smaller cities and towns, especially the shrinking ones, has not yet been explored. Therefore, we took a closer look at Lomza, a downscaled middle-sized city in the east of Poland where two phenomena occur: the accelerating depopulation caused mainly by the outflow of its residents and an inflow of foreign migrants, both asylum seekers predominantly coming from Russia (Chechnya) and economic migrants mainly from Ukraine. We explored the state of the public policy towards immigrants in Lomza in order to see what a shrinking city can offer its newcomers when it cannot count on national strategy in this regard.     

COVID-19: Impact on children living in out-of-home care and their carers

Children enter out-of-home care (OOHC) having experienced significant childhood adversities and trauma. Little is known about the short-term impacts of the COVID-19 pandemic on this vulnerable group. To gain some insights, we analysed the early impacts on the well-being and experiences of children in OOHC and their carers using the Pathways of Care Longitudinal Study data prior to and post the first lockdown restrictions. A total of 862 children, young people and their carers were interviewed either pre-COVID-19 restrictions (n = 567) (April 2019–March 2020) or post-COVID-19 restrictions (n = 295) (June–December 2020). While the two groups showed no significant differences in socio-emotional well-being, both the pre- and the post-COVID-19 restriction groups of children in OOHC had slight reductions in socio-emotional well-being. The interviews with the post-COVID-19 group showed that the pandemic restrictions affected children's well-being and behaviour, education, social and physical activities, as well as time spent with their birth family. Likewise, interviews with carers post-COVID-19 found a negative effect on carers' well-being, their ability to manage financially and their capacity to care and access services and support. The article contributes new evidence to inform OOHC policy and practice to support service systems facing unique challenges arising from a pandemic.     

Multiple Attribute Decision Making with Inexact Value-Function Assessment

A major issue in value-function assessment is the possibility of receiving an indefinite response from a decision maker to a question about preferences. The conventional treatment requires a single, definite response from the decision maker. This approach either assumes that response error is zero or accepts the final solution as only approximate, without knowing how approximate it might be. In this paper we examine the issue of indefinite responses, define it more precisely, and present a method for incorporating it into decision making. The method is adaptive in that it is iterative and interactive with the decision maker who, at each iteration, is provided with information regarding the potential advantage of answering more trade-off questions and/or answering questions more carefully to reduce response error. In contrast to other approaches that “force” rationality and decisiveness, we work with irrationality and indecisiveness on the part of the decision maker. The method is demonstrated for the case of concave, increasing value functions.