Working papers results

2024 - n° 159

We study whether (and why) self-employed individuals have higher fertility than employees.
Macro- and micro-level studies have produced inconsistent findings. Self-employment has been associated with income uncertainty and instability and may be negatively related to fertility. However, self-employment also implies workplace flexibility and higher potential income and may positively affect fertility. These mechanisms operate differently for men and women. We use the Italian Survey on Household Income and Wealth for 1995-2014, which includes objective and subjective fertility measures, and distinguish between three types of self-employment: laborer (solo) self-employment, entrepreneurship, and professionals. We show that all self-employed men and laborer self-employed women have higher fertility than comparable wage earners of the same sex. Using an instrumental variable treatment-effect regression approach and work histories, we show that self-employment causes higher fertility. We provide evidence that male and female entrepreneurs have more children because they would like to pass their business to their offspring (and rely on the family labor supply). Contrary to the US studies, Italian women do not perceive self-employment as facilitating work-life balance or encouraging childbearing.

Francesco C. Billari, Berkay Özcan, Concetta Rondinelli
Keywords: Self-Employment, Gender, Fertility, Entrepreneurship, Children
2024 - n° 158

Despite the efforts to reduce gender gaps, women are still under-represented among politicians. This paper suggests a new channel to explain female disadvantage in electoral success related to politicians’ ability to extend their electorate and attract voters from opponent parties. I rely on Swiss elections exploiting several features of this setting. This electoral system is based on open lists (voters can select candidates within their favorite party), and it allows cross-voting (voters can also select candidates from lists other than their favorite). Furthermore, electoral registers report the amount of preference votes collected by each politician separately by the voter’s favorite party. I show that individual preference votes are an essential driver of gender differences in candidates ’success. Interestingly, while no gender gap emerges in preferences cast by party supporters, male politicians collect more preference votes through cross-voting than females, i.e. they are more successful in persuading voters from competing parties. Motivated by several mechanisms, these new results bring salient policy implications concerning the impact of electoral systems on female representation.

Giulia Savio
Keywords: gender gap, preference votes, open lists, cross-voting, panachage, elections
2023 - n° 157

Women’s labor force participation has increased remarkably in western countries, but important gender gaps still remain, especially among parents. This paper uses a novel comparative perspective assessing women’s and men’s mid-life employment trajectories by parity and education. We provide new insight into the gendered parenthood penalty by analyzing the long-term implications, beyond the core childbearing ages by decomposing years lived between ages 40 to 74 into years in employment, inactivity, and retirement. We compare three countries with very different institutional settings and cultural norms: Finland, Italy, and the U.S. Our empirical approach uses the multistate incidence-based life table method. Our results document large cross-national variation, and the key role that education plays. In Finland years employed increase with parity for women and men and the gender gap is small; in the U.S. the relation between parity and years employed is relatively flat whereas among those with two or more children a gender gap emerges; and in Italy, years employed decreases sharply with parity for women, and increases for men. Education elevates years employed similarly for all groups in Finland; but in the U.S and Italy, highly educated mothers experience only half of the gender gap compared to low-educated mothers. The employment trajectories of childless women and men differ greatly across countries.  

Angelo Lorenti; Jessica Nisen; Letizia Mencarini; Mikko Myrskylä
2023 - n° 156

It is widely acknowledged that the quest for social status can result in an inefficient consumption ”rat-race” and the existing literature has discussed how taxes can mitigate the associated externalities. We suggest a new reason to tax conspicuous consumption. Our paper highlights that taxing status goods can achieve a more equitable distribution of welfare by compressing the status distribution. By curbing the conspicuous consumption of the wealthy, the government renders signaling less informative and increases the share of the social status surplus derived by the less wealthy. This ”status channel” serves as a complement to traditional monetary channels of redistribution.

Spencer Bastani; Tomer Blumkin; Luca Micheletto
Keywords: Optimal taxation, Signaling, Status
2022 - n° 155

State interventions to decrease the gender wage gap are often criticized for creating one-approach-forall which may be inappropriate for the specific difficulties faced by each sector and firm. In this paper, I study a unique policy where French firms were mandated by law to negotiate agreements on gender equality with union representatives. I estimate the causal effect of the signature of such agreements on the wage gap and other measures of gender inequalities. Using a unique combination of administrative datasets, I exploit the staggered signature of agreements over the 2010-2013 period and find that the law had an effect on the signature of those agreements but did not alter the gender wage gap nor many other outcomes reflecting gender inequalities. The absence of gender-related changes can plausibly be explained by the lack of obligation of result in the law and by the weak oversight of agreements’ content.

Caroline Coly
Keywords: GenderWage Gap, Agreements, Gender Law, Pay Transparency
2022 - n° 154

We study the joint design of nonlinear income and education taxes when the government pursues redistributive objectives. A key feature of our setup is that the ability type of an agent can affect both the costs and benefits of acquiring education. Market remuneration of agents depends on both their innate ability type and their educational choices. Our focus is on the properties of constrained efficient allocations when educational choices are publicly observable at the individual level, but earned income is subject to misreporting. We find that income-misreporting (IM) affects the optimal distortions on income and education and shed light on the reasons for it and mechanisms through which it is done. We show how and why IM strengthens the case for downward distorting the educational choices of low-ability agents. Finally, we find that IM provides another mechanism that makes commodity taxation useful.

Spencer Bastani, Firouz Gahvariy, Luca Micheletto
Keywords: Optimal taxation; education; human capital; income-misreporting; redistribution.
2022 - n° 153

The standard model of household behavior predicts that couples cooperate to maximize family income. This paper shows that gender identity norms repre- sent an important friction preventing family income maximization. For identi- fication, we focus on an Italian policy that grants a large tax credit to the main earner in a couple when the second earner reports income below a cutoff. Using new tax returns data, we show large bunching responses at the tax credit cut- off from second earner women, but no response from second earner men. This result suggests that household decisions are not Pareto-efficient when men are the second earner within the couple. Gender differences in bunching mostly emerge after marriage and childbirth, and do not reflect any gender-specific dif- ference in scope for bunching. In support of the view that gender norms drive our results, we find that gender differences in bunching are relatively larger among immigrants coming from more conservative societies, and natives liv- ing in more gender-traditional municipalities. Additionally, these results have important implications for gender inequality: we show that the spouse tax credit persistently limits women’s careers and amplifies the gender income gap.

Tommaso Giommoni, Enrico Rubolino
Keywords: Gender norms, gender inequality, spouse tax credit, income taxation.
2022 - n° 152

This study provides a review of the concept of family ties. It then measures family ties in an unprecedentedly all-encompassing way, accounting for the individual 
eterogeneity (by context, gender, education and age) that may affect them, looking at the patterns of variation among the different dimensions. Indeed, a large number of indicators have been used in the literature to measure family ties, but the inter-relation among their dimensions has rarely been explicitly taken into account. Furthermore, family ties have been assumed to be invariant among different individuals, without any formal test of this assumption. The analysis is based on Italian National Statistical Office (ISTAT) survey on family and social subjects (FFS 2016) on 24,753 individuals. A Structural Equation Model (SEM) is used to measure the different family tie dimensions and to test their invariance by individual characteristics. The results bring out seven dimensions of family ties. These dimensions are invariant by context and gender, but not by education and age. These findings offer a clear picture of the concept of family ties and show how this concept is differently perceived on the basis of some ascribed and some acquired personal characteristics.

Giorgio Piccitto, Arnstein Aassve, Letizia Mencarini
Keywords: family ties, inter-generational relations, education, gender
2022 - n° 151

We analyze the relationship between natives' attitudes towards citizenship acquisition for foreigners and trust. Our hypothesis is that, in sub-Saharan Africa, the slave trade represents the deep factor behind contemporary attitudes toward citizenship, with more intense exposure to historical slave exports for an individual's ethnic group being associated with contemporary distrust for strangers, and in turn opposition to citizenship laws that favor the inclusion of foreigners. We find that individuals who are more trusting do show more positive attitudes towards the acquisition of citizenship at birth for children of foreigners, that these attitudes are also negatively related to the intensity of the slave trade, and that the underlying link between trust and the slave trade is confirmed. Alternative factors - conflict, kinship, and witchcraft beliefs - that, through trust, may affect attitudes toward citizenship, are not generating the same distinctive pattern of linkages emerging from the slave trade.

Graziella Bertocchi, Arcangelo Dimico, Gian Luca Tedeschi
Keywords: Citizenship,Trust,Slave Trade,Migration,Ethnicity,Conflict,Kinship,Witchcraft
2021 - n° 150
We investigate the gender gap in Economics among bachelor's and master's graduates in Italy between 2010 and 2019. First we establish that being female exerts a negative impact on the choice to major in Economics: at the bachelor level, only 73 women graduate in Economics for every 100 men, with the mathematical content of high school curricula as the key driver of the effect and a persistence of the gap at the master level. Second, within a full menu of major choices, Economics displays the largest gap, followed by STEM and then Business Economics. Third, decomposition analyses expose a unique role for the math background in driving the Economics gender gap relative to other elds. Fourth, a triple difference analysis of a high school reform shows that an increase in the math content of traditionally low math curricula caused an increase in the Economics gender gap among treated students.
Graziella Bertocchi, Luca Bonacini, Marina Murat
Keywords: Education Gender Gap,Economics,Higher Education,Business Economics,Major Choice,Major Switching,Mathematics,Stereotypes.