Cette thèse comprend quatre chapitres sur la répartition des revenus. Tous les chapitres sont interdépendants et leur objectif commun est de discuter le concept d’inégalité dans la composition du revenu. Ce concept est étudié de manière approfondie du point de vue conceptuel, mathématique et économique. Le chapitre 1 présente cette thèse et ses principales conclusions. Le chapitre 2 présente le concept d’inégalité dans la composition du revenu, ainsi qu’un résumé statistique pour son évaluation technique. Le chapitre 3 analyse les déterminants de la variation de l’inégalité des revenus à la lumière de la nouvelle dimension de l’inégalité précédemment introduite. Le chapitre 4 étudie l’évolution de l’inégalité dans la composition du revenu en Italie entre 1989 et 2016. Le chapitre 5 propose une méthode pour analyser conjointement les répartitions du capital et du travail et de l’épargne et de la consommation. Cette méthode repose sur le concept d’inégalité dans composition du revenu. Enfin, le chapitre 6 conclut cette thèse et jette les bases de futures recherches en la matière. / This thesis consists of four chapters on income distribution. All chapters are interrelated, and cohesively they serve the sole purpose of discussing the concept of income composition inequality. This concept is thoroughly explored from a conceptual, mathematical, as well as political economy perspective. Chapter 1 introduces this dissertation and its main findings. Chapter 2 presents the concept of income composition inequality, together with a summary statistics for its technical assessment. Chapter 3 analyzes the determinants of income inequality variation in light of the novel inequality dimension previously introduced. Chapter 4 studies the evolution of income composition inequality in Italy between 1989 and 2016. Chapter 5 proposes a method to jointly analyze the distributions of capital and labor and of saving and consumption across the population. This method hinges on the concept of income composition inequality. Finally, Chapter 6 concludes this dissertation and lays the ground for future research on the matter.

This thesis consists of four separate chapters which address different aspects of inequality and income determination. The first three chapters are country-level studies which examine (1) how incomes are shaped by spatial price differences, (2) the factor income composition, and (3) enterprise size. The final chapter analyses how income inequality changed at the global level. The first chapter investigates the implications of regional price differences for earnings differentials and inequality in Germany. I combine a district-level price index with administrative earnings data from social security records. Prices have a strong equalising effect on district average wages in West Germany, but a weaker effect in East Germany and at the national level. The change in overall inequality as a result of regional price differences is small (although significant in many cases), because inequality is mostly explained by differences within rather than between districts. The second chapter is motivated by the rapid increase in top income shares in the United States since the 1980s. Using data derived from tax filings, I show that this pattern is very similar after controlling for changes in tax unit size. Over the same period as top income shares increased, the composition of these incomes changed dramatically, with the labour share rising. Using a non-parametric copula framework, I show that incomes from labour and capital have become more closely associated at the top. This association is asymmetric such that top wage earners are more likely to also receive high capital incomes, compared with top capital income recipients receiving high wages. In the third chapter, I investigate the positive cross-sectional relationship between enterprise size and earnings using panel data from Ghana. I find evidence for a significant firm size effect in matched firm-worker data and a labour force panel, even after controlling for individual fixed effects. The size effect in self-employment is stronger in the cross-section, but it is driven by individual time-invariant characteristics. The final chapter studies the global interpersonal income distribution using a newly constructed and improved database of national household surveys between 1988 and 2008. The chapter finds that the global Gini remains high and approximately unchanged at around 0.7. However, this hides a substantial change in the global distribution from a twin-peaked distribution in 1988 into a single-peaked one now. Furthermore, the regional composition of the global distribution changed, as China graduated from the bottom ranks. As a result of the growth in Asia, the poorest quantiles of the global distribution are now largely from Sub-Saharan Africa. By exploiting the panel dimension of the dataset, the analysis shows which decile-groups within countries have benefitted most over this 20-year period. In addition, the chapter presents a preliminary assessment of how estimates of global inequality are affected by the likely underreporting of top incomes in surveys.

L’incertitude pèse sur les ménages ruraux des pays en développement. Cette thèse vise d’une part à mieux comprendre quels sont les conséquences de cette vulnérabilité sur les comportements et d’autre part à analyser la mise en oeuvre et l’impact des stratégies de gestion de risque, qu’elles soient internes ou externes au ménage. Le premier chapitre se concentre sur l’effet de l’exposition au risque foncier sur le comportement d’épargne en Angola. Il établit que les ménages non dotés de documents de propriété ne sont pas à même de cumuler une épargne de précaution. Ce comportement d’auto-Couverture ne se manifeste que lors du cumul de plusieurs risques. Le second chapitre se focalise sur la prise de décision à l’intérieur du ménage pour le choix de stratégies de diversification. Il s’agit d’étudier l’allocation du temps de travail des femmes au Sénégal entre le travail domestique et les activités génératrices de revenus. Un modèle de type sphères séparées avec un transfert entre conjoints est validé. Le faible rôle des incitations financières et l’importance du pouvoir de négociation sont démontrés. Le dernier chapitre analyse l’impact sur la vulnérabilité des ménages d’une intervention extérieure au travers d’un programme visant à l’accès aux services énergétiques. Son impact est mesuré sur la nutrition des enfants. Les résultats démontrent un effet positif et progressif de la présence de l’infrastructure sur la nutrition de long terme. L’intensité de fonctionnement réduit la malnutrition de court terme. Un effet de diffusion est également établi. Ces trois chapitres permettent de montrer l’incapacité des ménages à mettre en place des stratégies de lutte contre la vulnérabilité de façon autonome. Elles prouvent ensuite la nécessité de développer l’accès aux marchés dans les zones rurales. Enfin, le rôle de l’intervention extérieure pour fournir des instruments de gestion aux ménages est souligné. / Uncertainty hangs over rural households in developing countries. This thesis aims first to better understand the consequences of vulnerability on behavior and also to analyze the implementationand impact of risk management strategies, internal or external to the household. The first chapter concentrates on the effect of exposure to tenure insecurity in Angola on saving behavior. It states that households without document are not able to accumulate precautionary saving. This behavior of self-Coverage only occurs with cumulated risks. The second chapter focuses on the decision-Making within the household for the choice of diversification strategies. The allocation of women working time in Senegal between domestic work and income generating activities is studied. A model of separate spheres with a transfer between spouses is validated. The low incidence of financial incentives and the importance of bargaining power are demonstrated. The last chapter analyzes the impact of external intervention on household vulnerability through a program which aims to develop access to energy services. Its impact is estimated on the nutrition of children. The results show a positive and progressive effect of the presence of the infrastructure on long- erm nutrition. The intensity of use reduces the short-Term malnutrition. A diffusion effect is also established. These three chapters allow to stress the inability of households to develop independent strategies against the vulnerability. Then they make out the need to develop market access in rural areas. Finally,the role of external intervention to provide management tools to households is underlined

Cette thèse porte sur les mécanismes d’allocation de biens indivisibles en présence d’externalités dans les préférences individuelles. Ces externalités rendent difficile en pratique la collecte d’une information complète sur les préférences. Aussi, l’analyse normative des mécanismes d’allocation requiert de formuler des hypothèses sur la manière d’étendre l’information collectée aux préférences sur les allocations. Cette approche revient à définir des restrictions sur le domaine de préférences admissibles, une démarche bien connue de la théorie du choix social. Les trois premiers chapitres portent sur l’analyse du marché de Shapley-Scarf dans lequel les échanges sont organisés entre coalitions. Les chapitres 1 et 2 établissent des restrictions de domaine garantissant l’existence de différents types d’équilibre concurrentiel. Dans le chapitre 3, l’ensemble des biens est muni d’une géographie, ce qui permet de définir la distance entre partenaires comme source d’externalité. Nous identifions certains domaines de préférences qui assurent la non-vacuité de différents types de Coeur. Le chapitre 4 porte sur le cas de biens indivisibles publics purs. Nous montrons que le problème est formellement équivalent à celui du choix d’un comité dont les membres sont choisis dans des ensembles distincts. Nous caractérisons certains domaines de préférences sur les comités pour lesquels le choix majoritaire membre par membre est cohérent avec le choix majoritaire du comité dans son ensemble. / This thesis focuses on the allocation of indivisible goods in presence of externality in individual preferences. This externality creates a difficulty with collecting full information about preferences. Therefore, conducting a normative analysis of allocation mechanisms requires assumptions on how reported preferences can be extended to preferences over outcomes. This approach is in line with the literature on preference domain restriction well-known in Social Choice theory. The first three chapters focus on Shapley-Scarf markets where trades are organized among coalitions. Coalitional trade generates externalities in individual valuations of allocations. Chapters 1 and 2 investigate domain restrictions ensuring the existence of various types of competitive equilibrium. Chapter 3 endows the set of goods with a geographical structure and considers distance to partners as a source of externality in preference. We identify domains of preference extensions which guarantee the existence of various types of core allocations. Chapter 4 focuses the case of pure public indivisible goods, which is formally identical to choosing a committee formed by several members, each selected from a specific set. We characterize preference domains over committees for which a well-defined seat-wise choice procedure based on majority voting is consistent with choosing a committee at once from majority voting.

Madagascar est un pays riche en ressources naturelles mais sa population reste pauvre et vit dans un écart de revenus important. Cette étude aborde le thème des "Inégalités de revenus des ménages en milieu rural malgache" afin de pouvoir apporter des éclaircissements à ce phénomène qui, d’une part, ruine la population rurale et, d’autre part, fragilise la stabilité et la performance économique du pays. Focalisée sur une période quinquennale d’observations répétées, la thèse porte sur les données de panel issues de 667 ménages. La thèse retrace le processus de calculs des revenus des paysans et du "seuil d’inégalité". Adoptant les modèles linéaire et non-linéaire, il s’attache aux spécifications et aux estimations des déterminants qui creusent ou réduisent les écarts de revenus des ménages intra-observatoires et entre observatoires de la côte Centre-Est. Les inégalités de revenus des ménages ruraux existent dans la société rurale Betsimisaraka. Elles sont multiformes. Plus de huit ménages sur dix vivent dans la "zone des pauvres inégalitaires". Les paysans de Mahanoro sont les plus pauvres et subissent aussi plus d’inégalités que ceux de Fénérive-Est. En revanche, à l’intérieur de l’observatoire, la situation a légèrement tendance à décroître au fil du temps. Pour une population assez homogène vivant dans une pauvreté alarmante, les inégalités entre ménages pauvres ne sont pas trop élevées. Les résultats des modèles économétriques soutiennent que la bonne production annuelle de riz réduit les écarts de revenus tandis que le sexe féminin et le niveau d’éducation du chef de ménage, la faible superficie rizicole ainsi que l’investissement, le dépôt financier, la thésaurisation, le sans épargne, l’emprunt, les revenus secondaires, le PIB et la crise politique accentuent les inégalités de revenus / Madagascar is a country rich in natural resources, but its population is poor and lives in a significant income gap. This thesis deals with the issue of "household income inequalities in rural areas in Madagascar", in order to clarify this phenomenon which, on the one hand, ruin the rural population and on the other hand, weakens the country's stability and the economic performance. Covering a five-year period of repeated observations, this thesis focuses on data from 667 households, from a balanced panel. The thesis traces the calculation process of farmers’ income and “inequality threshold”. Adopting linear and non-linear models, it endeavors to specify and estimate determinants that increase or reduce the wealth gap within and between observatories of the Central East Coast of Madagascar. Income inequalities of rural households are found in Betsimisaraka rural society. They are multifaceted. More than eight out of ten households live in the “area of unequal poors”. The farmers in Mahanoro are poorer and suffer more inequalities than in Fenerive Est. However, inside the observatory, the situation slightly tends to increase over time. For a rather homogeneous population living in alarming poverty, the inequalities between poor households are not too high. The results of econometric models argue that the good annual production of rice reduces income disparities, whereas the feminine gender and the education level of the household head, the small size of rice area along with the investment, the financial deposit, the hoarding, the "No savings", the debt, the secondary income, the GDP and the political crisis contribute to greater income inequalities.

The research undertaken represents an in-depth study of gender and economics from a multi-disciplinary perspective. By drawing on economic, social policy and political science literature it makes an original contribution to the disciplines of economics and feminist economics by advancing ideas on a feminist theory of policy change and institutional design. Equally, the study develops a framework for a multi-method approach to feminist research with applied policy focus by establishing a pragmatic feminist research paradigm. By espousing multiple research philosophies, it extends understanding of gender differences in policy outcomes by connecting theories from feminist economics, feminist historical institutionalism and ideational processes. Jointly funded by the Economic and Social Research Council UK and the Scottish Government, this project attempts to answer three key questions: What is the relative position of men and women in the Scottish economy and how do childcare responsibilities influence these? Which institutions, structures and processes have been instrumental in embedding gender in Scottish economic policy? To what extent and how is the Scottish Government’s approach to economic policy gendered? Quantitative analysis reveals persistently disproportionate differences in men and women’s position in the labour market. Women remain over-represented in part-time employment and in the public sector in the 10years under investigation. Using panel data, the multinomial logistic regression estimation of patterns in labour market transitions equally reveal disproportionate gendered patterns, with families with dependent children 0-4years at a disadvantage to those without. Qualitative analysis indicates that these differences are partly explained by the fact that the unpaid economy still remains invisible to policymakers despite changes in the institutional design, policy processes and the approach to equality policymaking undertaken in Scotland. Unpaid childcare work is not represented as policy relevant and the way gender, equality and gender equality are conceptualised within institutional sites and on political agendas pose various challenges for policy development on unpaid childcare work and gender equality in general. Additionally, policymakers in Scotland do not integrate both the paid and unpaid economies in economic policy formulation since social policy and economic policy are designed separately. The study also establishes that the range of institutions and actors that make-up the institutional setting for regulating and promoting equality, influence how equality issues are treated within a national context. In Scotland, equality regulating institutions such as parliament, the Scottish Government, equality commission and the law are instrumental variables in determining the range of equality issues that are embedded in an equality infrastructure and the extent to which equality issues, including gender, are consequently embedded in public policy and government budgets. Significantly despite meeting all the attributes of an equality issue, unpaid care is not classified as a protected characteristic in the Equality legislation. These institutions can ameliorate, sustain or perpetuate the delivery of unequitable policy outcomes for men and women in the mutually dependent paid and unpaid economy. Thus, economic, social and political institutions are not independent from one another but are interrelated in complex ways that subsequently have material consequences on men and women in society. In summary, there are interlinkages between the law, labour market, the unpaid economy, the welfare state and gendered political institutions such that policy or institutional change in one will be dependent on or trigger change in another. These institutions are gendered, but are also interlinked and underpin the gender structure of other institutions to the extent that the gendered norms and ideas embedded in one institution, for example legislation or political institutions, structure the gendered dimensions of the labour market, welfare state, and the unpaid economy. By shedding light on institutional and political forces that regulate equality in addition to macroeconomic forces, the analysis reveals the important role of institutions, policy actors and their ideas as instrumental forces which constantly define, redefine and reconstruct the labour market experiences of men and women with significant material consequences.