Working Papers

The WNE Working Papers series has been published by the Faculty of Economic Sciences at the University of Warsaw since 2008.

The WNE Working Papers series provides a fast, open channel for disseminating research conducted at the Faculty of Economic Sciences, University of Warsaw. The papers hosted here are working versions (pre-prints) and may evolve as authors refine their analyses, incorporate feedback, or progress through formal peer-review. What you read is the current version released by the authors, timestamped and assigned DOI/ISSN identifiers to ensure precise citation and version tracking. Copyright remains with the authors, who may, at any time, upload a revised file or add a note directing readers to a later, peer-reviewed publication.

The Working Papers series accepts articles by research employees of the Faculty and publications from conferences organised at the Faculty of Economic Sciences at the University of Warsaw. Articles should be original research papers which have not been previously published, on the subject of economics.

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Number of Results 23

WP(28/2026)522. Intra-Household Relative Income and Happiness: The Role of Unpaid Work Division During COVID and Afterwards

Authors: Grabowska Magdalena
Rising female employment and earnings have transformed partners’ economic positions, while gender divisions in unpaid labor persist. The COVID-19 pandemic disrupted the organization of paid and unpaid work, opening a window to reassess these tw…

WP522. Intra-Household Relative Income and Happiness: The Role of Unpaid Work Division During COVID and Afterwards

Rising female employment and earnings have transformed partners’ economic positions, while gender divisions in unpaid labor persist. The COVID-19 pandemic disrupted the organization of paid and unpaid work, opening a window to reassess these two dimensions within couples. Using longitudinal panel data from Poland (2021–2024), this paper examines how relative income and the division of unpaid labor relate to both life satisfaction and partner satisfaction among partnered adults. Random-effects models reveal distinct gendered patterns. For men, these dynamics are associated primarily with global life satisfaction: men report higher life satisfaction when they out-earn their partners, but substantially lower life satisfaction when they are out-earned and primarily responsible for domestic work. For women, effects concentrate in partner satisfaction: women who out-earn their partners report lower partner satisfaction when they also perform most domestic labor. These patterns hold for both housework and childcare and are observed primarily in the post-pandemic period.


DOI: https://doi.org/10.33138/2957-0506.2026.28.522
Grabowska Magdalena
relative income unpaid labor division subjective well-being intra-couple income distribution Poland

WP(10/2026)504. Clashing narratives about economic inequality in the economic and sociological textbooks

Authors: Weychert Ewa, Kopczewski Tomasz
Students of introductory economics courses pointed out that economic inequality the most significant challenge in the 21st century (Bowles & Carlin, 2020). However, there is limited research on how this issue is portrayed in introductory textbook…

WP504. Clashing narratives about economic inequality in the economic and sociological textbooks

Students of introductory economics courses pointed out that economic inequality the most significant challenge in the 21st century (Bowles & Carlin, 2020). However, there is limited research on how this issue is portrayed in introductory textbooks. Our study aims to investigate the presentation of economic inequality in economics textbooks compared to sociological ones. We conduct a mixed-method study to examine differences in how introductory economics and sociology textbooks portray economic inequality. By focusing on the comparison between economic and sociological textbooks, we aim to highlight the importance of an interdisciplinary approach to studying economic inequalities, as advocated by economist Thomas Piketty (Korom, 2019). Comparing textbooks across disciplines is essential for informing curriculum development, encouraging interdisciplinary learning, and enhancing the relevance of education to real-world issues. This comparison provides insights that help integrate diverse perspectives on economic inequality into educational practices in both disciplines. Our analysis includes twelve introductory economics textbooks and three introductory sociological textbooks. We find significant differences: top-selling economics textbooks focus on statistical measurements of inequality and the trade-off between equality and efficiency, while sociological textbooks consider economic inequality from historical, cultural, and philosophical perspectives.


DOI: https://doi.org/10.33138/2957-0506.2026.10.504
Weychert Ewa, Kopczewski Tomasz
income inequality wealth inequality textbook analysis narrative economics qualitative research

WP(9/2025)472. The End of an Era. The Vanishing Negative Effect of Women’s Employment on Fertility

Authors: Matysiak Anna, Daniele Vignoli
This paper addresses whether women’s employment in the 21st century remains a barrier to family formation, as it was in the 1980s and 1990s, or—similar to men’s—it has become a prerequisite for childbearing. We address this qu…

WP472. The End of an Era. The Vanishing Negative Effect of Women’s Employment on Fertility

This paper addresses whether women’s employment in the 21st century remains a barrier to family formation, as it was in the 1980s and 1990s, or—similar to men’s—it has become a prerequisite for childbearing. We address this question through a systematic quantitative review (meta-analysis) of empirical studies conducted in Europe, North America and Australia. We selected 94 studies published between 1990-2023 (N=572 effect sizes). Our analysis uncovers a fundamental shift in the relationship between women's employment and fertility. What was once a strongly negative association has become statistically insignificant in the 2000s and 2010s—and even turned positive in the Nordic countries and parts of Western Europe (France, Belgium, and the Netherlands). This shift is evident both among childless women and mothers and has occurred across all analyzed country clusters, except in the German/Southern European group, where the relationship has remained negative. These findings challenge longstanding assumptions about work-family trade-offs and suggest a reconfiguration of the economic and social conditions underpinning fertility decisions in contemporary high-income societies. The paper calls for a reconceptualization of the employment-fertility relationship and development of a new theoretical framework that better captures these evolving dynamics in contemporary high-income societies.


DOI: https://doi.org/10.33138/2957-0506.2025.9.472
Matysiak Anna, Daniele Vignoli
Women’s employment Fertility High-income countries Meta-analysis

WP(2/2025)465. Agriculture in interwar Poland: development in a turbulent time

Authors: Bukowski Maciej, Kowalski Michał, Marcin Wroński
We measure the value added in agriculture in Poland during the interwar period. Our calculation is based on the bottom-up methodology. We provide estimates on the national and regional levels. Cultivated area, yields and yields per hectare increased …

WP465. Agriculture in interwar Poland: development in a turbulent time

We measure the value added in agriculture in Poland during the interwar period. Our calculation is based on the bottom-up methodology. We provide estimates on the national and regional levels. Cultivated area, yields and yields per hectare increased during the investigated period. Significant regional convergence, both in the case of prices and value added occurred. In the years 1924 -38 value added increased by 5.35% annually, resulting 4.01% per capita growth rate. However, the yields per hectare grew less than in a majority of other European economies. While less developed eastern regions caught up with more economically advanced western Poland, the leading west lost compared to European peers. Therefore, our assessment of the development of agriculture in Poland in that period remains mixed.


DOI: https://doi.org/10.33138/2957-0506.2025.2.465
Bukowski Maciej, Kowalski Michał, Marcin Wroński
agriculture national income Poland Central and Eastern Europe economic growth regional convergence

WP(26/2024)462. Carbon taxes in Europe do not hurt the poor

Authors: Brzeziński Michał, Monika Kaczan
This study investigates the distributional impacts of carbon taxes, traditionally examined through simulation studies on the regressivity of hypothetical tax scenarios. However, the dy-namic influence of actually implemented carbon taxes on consumpti…

WP462. Carbon taxes in Europe do not hurt the poor

This study investigates the distributional impacts of carbon taxes, traditionally examined through simulation studies on the regressivity of hypothetical tax scenarios. However, the dy-namic influence of actually implemented carbon taxes on consumption/income poverty and inequality in a cross-country setting has been less scrutinised. This paper assesses the effect of carbon taxes introduced in the past three decades in 15 European countries on consumption shares of the lowest decile groups, poverty rates and inequality indices. The analysis shows that a $40/ton CO2 tax covering 30% of emissions leads to a consumption share increase of up to 4% for the bottom 20% and 40% of the population, a trend that persisted for five years post-implementation, particularly in nations that efficiently redistribute carbon tax revenues. This resulted in a modest reduction in consumption inequality over three years. In contrast, the impact of carbon taxes on income poverty and inequality is not statistically significant. These findings suggest that concerns about poverty and inequality due to carbon taxes can be miti-gated by implementing a moderate tax combined with a strategically efficient revenue redis-tribution mechanism.


DOI: https://doi.org/10.33138/2957-0506.2024.26.462
Brzeziński Michał, Monika Kaczan
climate policy carbon tax poverty inequality consumption/income distribution revenue re-cycling

WP(10/2023)417. What if she earns more? Gender norms, income inequality, and the division of housework

Authors: Magda Iga, Cukrowska-Torzewska Ewa, Palczyńska Marta
Using data from “Generation and Gender Survey” for Poland, we study the relationship between women’s relative income within the household, as measured by the female share of total household income, and women’s involvement in h…

WP417. What if she earns more? Gender norms, income inequality, and the division of housework

Using data from “Generation and Gender Survey” for Poland, we study the relationship between women’s relative income within the household, as measured by the female share of total household income, and women’s involvement in housework. We find that households in which the woman contributes more to the total household income are more likely to share housework equally. We also find that individual gender norms matter both for women’s involvement in unpaid work at home and for the observed link between the female share of income and inequality between the partners in the division of housework. Women from less traditional households are found to be more likely to share housework equally. However, this negative relationship between the female share of household income and female involvement in housework is not observed among more traditional couples.


Magda Iga, Cukrowska-Torzewska Ewa, Palczyńska Marta
household income income inequality housework gender norms

WP(4/2023)411. Inequality and happiness: the role of income versus wealth inequality

Authors: Sałach-Dróżdż Katarzyna
There are conflicting theories about whether individuals like or dislike inequality, or in other words, whether living in an unequal country increases or decreases their subjective well-being. The empirical literature has also not yet reached a conse…

WP411. Inequality and happiness: the role of income versus wealth inequality

There are conflicting theories about whether individuals like or dislike inequality, or in other words, whether living in an unequal country increases or decreases their subjective well-being. The empirical literature has also not yet reached a consensus. In this paper, we add a new perspective to the inequality-happiness puzzle. First, we study not only income inequality, but also wealth inequality, which has so far been overlooked in the happiness literature. Second, we reach beyond the usually studied Gini coefficient and top income shares, looking also at the other parts of income or wealth distribution. Using data from the integrated World Values Surveys and European Values Surveys for over 50 countries, matched with World Inequality Database data over the years 1981-2020, we find that individuals are happier with increases in the top 10% and top 1% shares of wealth and less happy with increases in the middle 40% share of either wealth or pre-tax income. Increasing the bottom 50% share of after-tax income also makes individuals happier, suggesting that they favor income redistribution. We offer possible explanations for these findings.


Sałach-Dróżdż Katarzyna
income inequality wealth inequality happiness subjective well-being life satisfaction

WP(2/2023)409. Prudent populists? The short-term macroeconomic impact of populist policies in Poland

Authors: Brzeziński Michał, Sałach-Dróżdż Katarzyna
Recent research shows that populist governments in general depress countries’ economic growth and fail to improve income distribution. We study the short-term macroeconomic consequences of populist policies implemented in Poland since 2015. Usi…

WP409. Prudent populists? The short-term macroeconomic impact of populist policies in Poland

Recent research shows that populist governments in general depress countries’ economic growth and fail to improve income distribution. We study the short-term macroeconomic consequences of populist policies implemented in Poland since 2015. Using the augmented synthetic control method, we find that the populists boosted the GDP per capita by almost 8% between 2016 and 2019. We do not find any effect of populism on inflation and estimate only small labor market impacts. The populists improved tax revenue collection and reduced public debt. A generous child benefit program and other redistributive policies introduced by the populists significantly reduced overall poverty and almost eradicated absolute child poverty. Our results imply that anti-establishment populists may be macroeconomically prudent, at least in the short run.


Brzeziński Michał, Sałach-Dróżdż Katarzyna
populism economic growth public finance income distribution Poland

WP(2/2021)350. The effects of child benefit on household saving

Authors: Liberda Zofia Barbara, Sałach Katarzyn, Pęczkowski Marek
In 2016, a new child benefit was introduced in Poland: a universal benefit for the second and subsequent children in a family and means tested for the first child. Substantial transfers of the new child benefit were granted 60% of households with chi…

WP350. The effects of child benefit on household saving

In 2016, a new child benefit was introduced in Poland: a universal benefit for the second and subsequent children in a family and means tested for the first child. Substantial transfers of the new child benefit were granted 60% of households with children. The generous child benefit, equal to 10% of monthly median households' income, caused an unexpected positive income shock for families with children. In this paper, we investigate how the new child benefit affects the household decisions to consume or save the child's income. Applying the difference-in-differences method and Polish Household Budget Survey data for the years 2012-2018, we find a positive effect of the child benefit on household saving. Our estimates indicate that families obtaining the child benefit (treatment group) increased the saving rate by 8 percentage points after the child benefit reform in 2016. Over time, the control group (not obtaining the child benefit) raised the saving rate by 2.9 percentage points.


Liberda Zofia Barbara, Sałach Katarzyn, Pęczkowski Marek
households income child benefit saving

WP(18/2019)303. Reevaluating distributional consequences of the transition to market economy in Poland: new results from combined household survey and tax return data

Authors: Brzeziński Michał, Myck Michał, Najsztub Mateusz
We use Pareto imputation, survey reweighting, and microsimulation methods applied to combined household survey and tax return data to reevaluate distributional consequences of the post-socialist transition in Poland. Our approach results in the first…

WP303. Reevaluating distributional consequences of the transition to market economy in Poland: new results from combined household survey and tax return data

We use Pareto imputation, survey reweighting, and microsimulation methods applied to combined household survey and tax return data to reevaluate distributional consequences of the post-socialist transition in Poland. Our approach results in the first estimates of top-corrected inequality trends for real equivalized disposable incomes over the years 1994-2015. We find that the top-corrected Gini coefficient grew by 14-26% more compared to the unadjusted survey-based estimates. This implies that over the last three decades Poland has become one of the most unequal European countries among those for which top-corrected inequality estimates exist. The highest-income earners benefited the most during the post-socialist transformation: the annual rate of in-come growth for the top 5% of the population exceeded 3.5%, while the median income grew by about 2.5%.


Brzeziński Michał, Myck Michał, Najsztub Mateusz
income inequality Gini index top income shares tax record survey data Pareto distribution Poland
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