News & Events
2008 - n° 4 28/05/2020
Using age specific fertility rates of Italian and Swedish women aged between 15 and 49 years old I examine the presence of fertility postponement in period and cohort outputs. Period data consist of standard five-year age group rates ranging from 1960 to 2005. Cohort data are arranged on age specific year groups born between years 1930-1970. The method used in this work is based upon quadratic spline interpolation procedure, developed by Carl P. Schmertmann (2003), in which three index ages determine the schedules shape. The recent fertility postponing behavior is investigated through the help of five index ages, which show the dynamics of postponement both in cohort and period data.
Keywords: Second Demographic Transition,fertility trends,postponement,quadratic spline interpolation,Italy,Sweden
Emilio Zagheni is Director of the Max Planck Institute for Demographic Research (MPIDR) and Affiliate Associate Professor of Sociology at the University of Washington, where he served as Training Director of the Center for Studies in Demography and E ...
2019 - n° 130 28/05/2020
The aim of this paper is to study whether politicians manipulate fiscal policy to extract private rents. We focus on the local personal income tax (PIT), in the setting of Italian cities, which is a progressive instrument that allows mayors to set different rates to distinct wage groups. We exploit discontinuities in mayors’ salaries, that are based on population thresholds, to study whether mayors systematically apply lower rates to their own tax bracket. The main results document large rent-seeking activity in fiscal policy. First, we show that when mayors’s salary is exogenously located in the following tax bracket this receives a significantly lower tax rate than the previous bracket, compared to the control group. Second, we show that this rent-seeking activity is highly detrimental for the public treasury, with a considerable reduction in fiscal revenues. And finally, we document that the monetary gains for rent-seeker politicians are rather limited. These results suggest that when fiscal policy is prone to be manipulated politicians do not hesitate to engage in rent-seeking activities even in case of little profits.
Keywords: rent-seeking,fiscal policy,personal income tax,efficiency wage,regression discontinuity design
2011 - n° 47 28/05/2020
Over recent decades the family formation process radically changed in Europe. Even though similar trends have been observed across the continent there are still important differences between countries. Using the theoretical approach and conceptual definitions given by Ajzen's (1991) theory of planned behavior without applying its empirical model, the main focus of the present paper is on the way in which paid job and unpaid work and women's attitudes towards them influence the decision to have a second child. The study uses a qualitative approach, by means of the investigation of in-depth interviews with 27 women in reproductive ages in Cagliari, one of the lowest-low fertility contexts in Italy, itself a lowestlow fertility country. Mothers were divided into six different groups on the basis of their intentions to have a second child. The results demonstrate that the theoretical framework is able to highlight substantial differences in attitudes and perceived behavioural controls among the women with different intentions for childbearing.
Keywords: fertility intentions,second birth,paid work,unpaid jobs,theory of planned behavior,qualitative research methods
2007 - n° 2 28/05/2020
Students' experiences at university prepare them for a future in which they are expected to engage in life-long learning. Self-efficacy theory suggests that a persons beliefs in their capacity to learn will influence their participation in learning. This paper describes development of a new scale to measure self-efficacy for learning (SEL) among university students, designed to be appropriate for both campus-based and online learning, and for administration in a battery of tests on student development. Undergraduate students (n = 265) in a business school in Milan and a department of psychology in Rome participated in the final study. Beginning with a random sample of 200 participants, item response theory and exploratory factor analysis with LISREL were used to identify a 10 item scale to measure SEL. The scales properties were confirmed in a second random sample of 200 participants, using confirmatory factor analysis in LISREL. Correlation with expected grades was, consistent with earlier studies, moderately small (.22), but statistically significant.
Keywords: academic self-efficacy,self-efficacy for learning,SEL,university,measurement scale
2008 - n° 15 28/05/2020
We present an introduction to the NetLogo simulation environment using the Segregation Model presented by Nobel Prize Winner Thomas Schelling in 1978. While reviewing the model, its Netlogo implementation is described step by step, using visual tools accompanied by the code for programming in the Netlogo language. Two extensions to the original model are proposed and programmed. All the models are fully described in the text.
Keywords: NetLogo,Schelling,simulation,agent-based,segregation