Th.--Sci. écon.--Aix-Marseille 2, 1977.

Alors que les nations du monde se rapprochent et deviennent plus interdépendantes, le contexte global changeant nécessite une recherche académique plus adaptée. Les théories développées pour les démocraties avancées au vingtième siècle ont maintenant besoin d’additions complémentaires, ou peut-être de contreparties divergentes, pour expliquer les processus de développement des pays émergents. Pour traiter ces changements, les académiques ont soit créé de nouvelles théories soit étendu d’anciennes pour les adapter aux pays en développement. Cependant, malgré d’encourageants progrès, la nature dynamique des pays en cours de développement, à la fois économiquement et politiquement, implique qu’une large travail reste à accomplir. La littérature sur les développements institutionnels dans le domaine de l’économie politique pour les pays avancés est, tout en évoluant, bien établie. Les théories qui soutiennent cette thèse viennent d’études de capitalisme comparatif (CC) sur les pays avancés. Cette thèse donne un aperçu de l’impact de la structure économique sur les institutions économiques et politiques, l’évolution de ces institutions, et comment ces institutions affectent l’état social d’un pays, avec une importance particulière accordée aux résultats de l’état social. Après un premier chapitre introductif, le chapitre deux suggère que les pays en développement caractérisés par des économies plus coordonnées devraient avoir des systèmes électoraux plus proportionnels. Le chapitre trois continue avec cette idée et suggère que les économies coordonnées devraient produire des états sociaux plus généreux avec de hautes dépenses gouvernementales. Aussi, ces pays devraient avoir des résultats sociaux plus optimaux, tels que des baisses d’inégalités et des niveaux de pauvreté. Cette évolution connective peut être expliquée par la co-évolution des institutions économiques et politiques. Afin de mieux comprendre la formation et la variété des états sociaux dans les pays en développement, le chapitre quatre ne considère qu’une région, Afrique Subsaharienne (AS). Ce chapitre considère aussi comment la générosité de l’état social influe les résultats de la protection sociale. / As nations around the world become closer and increasingly interdependent, the changing global context requires a parallel advancement of academic research. Theories developed for advanced democracies in the twentieth century now require complimentary additions, or perhaps diverging counterparts, to help explain the developmental processes of developing countries. To address these changes, scholars have created new theories or extended old ones to consider developing countries. However, despite the positive and thorough advancements thus far, the dynamic nature of countries undergoing development and transition, both economic and political, means that the work is far from finished. The literature on institutional developments in the political economy for advanced democracies is, while still evolving, well established. The theories supporting the research within this thesis rely on comparative capitalism studies and the varieties of capitalism approach focused on advanced democracies. The purpose of this thesis is, using the key tenants of comparative capitalism and the varieties of capitalism theory, to expand this literature to developing countries. After the introduction found in chapter one, chapter two suggests that developing countries with more coordinated economies should have more proportional electoral rule systems, which are a type of political institution. Chapter three continues along the idea of this subject by suggesting that these coordinated economies, which have more proportional electoral rules systems, according to chapter two, should produce more generous welfare states with higher government spending and more optimal welfare outcomes, such as low inequalities and low levels of poverty. This connective story can be explained by the co-evolution of economic and political institutions. In order to understand more deeply welfare state formation and variety, along with how welfare generosity affects welfare outcomes in developing countries, chapter four takes a closer look at one region in particular, Sub­-Saharan Africa.

Present-day development theory and practice highlight the potential of micro-entrepreneurship for poverty reduction in least developed countries. Fostered by the seminal writings of microfinance founder Muhammad Yunus and the bottom-of-the-pyramid propagator Krishnarao Prahalad, the new approach is marked by a stress on participation and sustainability, and the new, market-based development models. With the growing popularity of the new approach there has been an increased demand for research on the efficacy and impact of innovations. What has scarcely been addressed, however, is the legitimacy of the new paradigm within its contexts of application. Since engagement and participation have been made the focal point of the new approach, my research investigates how the innovative, mostly market-based models have been received by the local populations on the ground. This doctoral dissertation is looking up-close at the rural populations of Burundi, describing and explaining their perceptions, behaviors and actions in response to the market-based development innovations: microfinance, rural entrepreneurship and community social enterprise. Do the concepts of entrepreneurship, community engagement and participation find a fertile ground among the poorest rural dwellers of sub-Saharan Africa? Can subsistence farmers be entrepreneurs? How to create social value in the context of extreme resource scarcity? It is investigating these and other questions that guided the subsequent stages of my work. I based my dissertation on extensive field research, conducted periodically over the period of four years in the remote areas of rural Burundi.In the first chapter, I question the applicability of entrepreneurship-based interventions to the socio-cultural context of rural Burundi. Basing my quantitative analysis on a unique cross-section dataset from Burundi of over 900 households, I look into the entrepreneurial livelihood strategies at the near-subsistence level: diversifying crops, processing food for sale, supplementary wage work and non-agricultural employment. I find that the farmers living closer to the subsistence level are indeed less likely to pursue innovative entrepreneurial opportunities, unable to break the poverty cycle and move beyond subsistence agriculture. The paper contributes to the ongoing debate on by analyzing its drivers and inhibitors in the context of a subsistence economy. It questions the idea of alleviating rural poverty through the external promotion of entrepreneurship as it constitutes ‘a denial of the poor’s capacity for agency to bring about social change by themselves on their own terms’.Drawing on these findings, the second chapter focusses on the role of local communities as shareholders of projects. The aim of this paper is to investigate the ways in which the agrarian communities in rural Burundi accommodate the model of a community social enterprise. The project understudy, implemented by the UNICEF Burundi Innovation Lab, builds upon the provision of green energy generators to the village child protection committees in the energy-deficient rural regions of the country. The electricity-producing machines are also a new income source for the groups, transforming them into economically viable community enterprises. Since the revenue earned is to directly support the village orphans’ fund, the communities in question engage in a true post-development venture: they gradually assume the role of the development-provisioning organizations.The third chapter of this work focusses on the complex interaction between the microfinance providers and the population of its clients and potential clients: the rural poor. It draws on the existing research on positive deviance among African communities and explores the social entrepreneurial potential of the rule-breaking practices of microfinance programs’ beneficiaries. Using the storyboard methodology, I examine the strategies employed by the poor in Burundi to bypass institutional rules. My results suggest that transgressive practices and nonconformity of development beneficiaries can indeed be seen as innovative, entrepreneurial initiatives to reform the microfinance system from within, postulating a more participatory mode of MFIs’ organizational governance. The three empirical chapters provide concrete examples illustrating the contested nature of the development process. In the last, theoretical, chapter, I examine how the different conceptualizations of social entrepreneurship have been shaped by the disparate socio-political realities in the North and in the South. I then analyze how the process of constructing academic representation has been influenced by the prevalent public discourses.Since doubling or tripling of the external development finance has not sufficed to bring about systemic change, the assumption that technology, managerial efficacy and the leveraging power of financial markets could be applied to solving the problem of persisting global poverty has a lot of appeal. At the same time, my findings point to the fact that if the ultimate objective of development is broadly defined value creation, the definition of what constitutes value should be negotiated among all the stakeholders. The dissertation makes an important contribution to the understanding of participation, entrepreneurship and community engagement in the context of development studies.I strongly believe that development organizations must have a quality understanding of the social and cultural characteristics of the need or problem they are targeting in order to make productive decisions about the application and scaling of interventions. I very much hope that my work can provide some guidance for their work on the ground. / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

This thesis consists of three papers which contribute to the literatures on regulation and organizational economics.<p><p><p>The first part of the dissertation addresses questions related to the procurement decisions of private and public organizations. In particular it focuses on how the anticipation of renegotiating the contractual terms during the execution of a procurement contract affects the initial arrangements between the parties. Renegotiation may involve the design itself of the goods which are procured, and not just their price or the time of their delivery. A plausible explanation for its pervasiveness is the existence of transaction costs which prevents contracts from being complete. This is especially true for more sophisticated and customized goods, such as new infrastructures or cars' and aircrafts' parts or components. Ex-post these goods may fail to fit the buyer's specific needs and/or may exhibit flaws unforeseen at the planning stage.<p><p><p>In the first two chapters, I show that the anticipation of ex-post adaptations has critical implications for many procurement choices, such as that of the contractual agreement, the award mechanism, and the delegation of the design task to the suppliers. Therefore, a proper inclusion of design failures into the analysis of procurement contracts can help broaden our understanding of the wide variety of procurement modes and outcomes observed in the real world. My analysis offers an explanation for the procurement practices adopted in complex manufacturing and construction industries. Moreover, it can provide useful guidance for public procurement. Governments face tight restrictions in their choices of the procurement modes and for this reason they should carefully evaluate whether or not to adopt the best practices of the private sector.<p><p><p>The second part of the dissertation concerns the optimal design of an organization. In many organizations the task of evaluating an agent's performance is delegated to a third party, a supervisor, who can opportunistically misreport information. The question of how the provision of incentives in hierarchies is affected by the supervisor's opportunism is of great importance since it can improve our understanding of the internal organization of firms and can have broad applications to regulatory design.<p><p><p>The third chapter of the thesis, co-authored with Luca Livio (ECARES, FNRS), contributes to this line of research by studying the optimal task a supervisor should be charged with in the presence of corruption concerns. We highlight the existence of a trade-off between monitoring the agent's effort choice and auditing it ex-post, which arises when the two faces of corruption, collusion and extortion, are present. / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

In the realm of globalization, international sourcing of services contributes to reshape firm’s value chains as the physical dispersion of these activities increases. This reorganization does not simply lead to the replication of domestic activities in a destination providing resource advantages, but, in most cases, it implies profound modifications of the flows of activities, including the reconsideration of the boundaries of the firm. Global sourcing strategies, also called offshoring, seek to increase firm’s efficiency by combining the exploitation of foreign locational advantages with process redesign. When aggregated, these firm-level strategies translate into considerable international exchanges to a point that flows of intermediate services represent about 73% of the total of international trade in services for 2005 (OECD, 2009). These activities present a high degree of heterogeneity in terms of functions concerned, the related domestic industries, motivations, destinations, organizational structure or scope. This wave of internationalization, because of its relative novelty, growth and rapid diversification, draws the interest from the public, political and academic spheres but the comprehension of the determinants shaping the configuration and organization of these activities still remain largely unknown. Based on four essays, this PhD thesis addresses the impact of host-country characteristics and distance factors on the configuration of international sourcing activities in the dimensions of location, governance model and scope of activities.<p><p>The first paper studies the country-specific determinants of the interdependent choices of destination and governance model in the global sourcing of services. I explore the simultaneity of these decisions and I jointly estimate their determinants using implementation-level data. Derived from comparative advantages, host-country uncertainty and the global dispersion of tasks, I present three classes of factors driving global sourcing configurations: resource arbitrages, host-country risk and communication barriers. Empirical results confirm that locations with resource or capabilities advantages specific to services – low labour cost, education and labour supply – attract more offshoring activities. However the pursued resource advantages differ depending on the governance model. Country attractiveness for captive implementations presents a higher positive sensitivity to the education-intensive resources, while outsourcing strategies have a greater cost-cutting orientation coming from labour cost arbitrages. Furthermore, the risks inherent to the host-country, in the form of weak formal institutions and inexperience in the destination, have the dual effect of deterring location attractiveness, while they foster the adoption of the outsourcing model compared to the captive one. Communication barriers coming from geographic distance, cultural and linguistic differences have the simultaneous effect of discouraging global sourcing in those locations while, to overcome these constraints, firms favor higher integration with the use of captive models. <p><p>This second paper further explores the mechanisms through which home-host country distances affect the choice of governance mode in service offshoring. Using a Transaction Cost Economics approach, I explore the comparative costs of the hierarchical and contractual models to show that different dimensions of distance (geographic, cultural and institutional), because they generate different types of uncertainties, impact offshore governance choices in different ways. Empirical results confirm that, on the one hand, firms are more likely to respond to internal uncertainties resulting from geographic and cultural distance by leveraging the internal controls and collaboration mechanisms of a captive offshore service center. On the other hand, they tend to respond to external uncertainties resulting from institutional distance by limiting their foreign commitment and leveraging the resources and local experience of third party service providers. Finally, I find that the temporal distance component (time zone difference) of geographical dispersion between onshore and offshore countries plays a dominant role over the spatial distance component.<p><p>The third section then concentrates on the impact of the institutional environment (regulative) on international sourcing activities. To exploit country-specific advantages, firms that source activities from abroad are forced to integrate the institutional environment into the choice not only of host-country, but also of governance model for their offshore activities. Considering inefficient institutions as drivers of transaction costs, this conceptual paper explores the impact of the host-country regulative environment in the interdependent decisions of country selection and governance model (captive or outsourcing) in firms’ global sourcing strategies. I consider two classes of assets: transferred assets for knowledge/information flows, and local assets sourced from the host location. I show that each class involves specific institutional risks for offshoring practices. In turn, because of the different institutional exposures of the captive model and the outsourced one, the institutional risks associated with transferred and local assets have different implications for the choice of governance model. Firms react to institutional risks relative to transferred assets by internalizing their activity, but they bypass inefficient institutions for local assets using outsourcing. Based on the interaction of the institutional risks relative to each class of assets, I then obtain sufficient conditions that give the firm-optimal combinations of country selection and governance model.<p><p>The last section studies how firm-level and country-level risks affect the scope of the process operated in the foreign unit. To prevent appropriation hazard for proprietary content, firms choose a particular disaggregation of the value chain. We argue that, in response to the lack of control offered by internalization and the lack of protection provided by host-country institutions for protecting proprietary content, firms reduce the scope of their activities. In other words, they exploit existing complementarities between the tasks of their value chain using a higher disaggregation of their process and therefore reducing appropriation value for outsiders. Based on a sample of 750 international sourcing projects, regression results on the scope of offshore activities confirm that firms prefer to source discrete tasks rather than entire processes when they lack the protection of internalization and external institutions. In addition, experience modifies these relationships. On the one hand, inexperienced firms do not rely on this slicing mechanism to prevent the loss of control implied by an outsourcing model. On the other hand, the effect of weak institutional protection is perceived as more stringent for inexperienced firms. When host-country institutions are deficient, these firms, compared to the experienced ones, have a higher propensity to operate discrete tasks rather than entire processes.<p> / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

The Thesis is composed by three complementary research investigations on the economic and policy aspects of EU corporate R&D.Collectively, the work first reviews the theoretical and empirical literature of corporate R&D intensity decomposition; it then investigates the EU R&D intensity and its decomposition elements comparatively with most closed competitors and with emerging economies over the period 2005-2013. Finally, it inspects further some key aspects that can be associated to the EU R&D intensity gap: sectoral dynamics and the resulting sectoral and technological specialisations as well as the drivers for R&D investment growth across sectors and firms' age groups of top R&D investing firms over time. These studies also address the possible policy implications that derive from their outcomes.The investigations rely on literature as well as on company data, mainly from nine editions (2006-2014) of the EU Industrial R&D Investment Scoreboard. For analytical purposes they use literature review, meta-analysis, descriptive statistics, R&D intensity decomposition computational approach, Manhattan distance and Technological Revealed Comparative Advantage metrics, and a multinominal logit regression model. The results of these three research works are novel in several aspects. It indicates that literature results on R&D intensity decomposition differ because of data and methodological heterogeneities, and that the structural cause is the main determinant of EU R&D intensity gap if sector compositions of the countries are considered. It inspects how the use of different data sources and analytical methods impact differently on R&D intensity decomposition results, and what the analytical and policy implications are.The empirical research results of this Thesis confirm the structural nature of the EU R&D intensity gap. In the last decade the gap between the EU and the USA has widened, whereas the EU gap with Japan has remained relatively stable. In contrast, the emerging countries' R&D intensity gap compared to the EU has remained relatively stable, while companies from emerging economies are considerably reducing such gap. Besides, as novel contribution to the state of the art of the literature, this Thesis uncovers the differences between EU and US by inspecting which sectors, countries and firms are more accountable for the aggregate R&D intensity performance of these two economies, and it finds a high heterogeneity of firms' R&D intensity within sectors. Furthermore, it shows that there is a bigger population of both larger and smaller US top R&D firms which invest more strongly in R&D than competitors, and that the global R&D investment is concentrated in a few firms, countries and industries. Finally, the research founds a slightly higher EU R&D shift over sectors compared to the US, but not strongly enough towards high-tech sectors. Also, the EU has an even broader technological specialisation than its already broad industrial R&D sector specialisation, while the USA leads by number of technological fields belonging mostly to the industrial R&D sectors of its specialisation. Furthermore, the EU has been better able than the USA and Japan to maintain its world share of R&D investment even during the years of economic and financial crisis. Lastly, the study also indicates that firms make a complementary use of capital expenditures and R&D intensity for their R&D investment growth strategies and it reveals that there are differences in their use between firms' age classes across sectors. Overall, the main results of the Thesis suggest that to reach a more positive R&D dynamics and boost its competitiveness, the EU should adapt its industrial structure and increase the weight of high R&D intensive sectors. A focus on creating the conditions for firm creation and growth in new-emerging innovative sectors is advised together with favouring the exploitation of the full capacity of EU leading - but mature - sectors to also absorb high-technology from other sectors. / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

This thesis explores the entire cycle of education, from initial access to schooling, over degree completion, to returns to education. Despite recent gains in increasing access, an tens of millions of children worldwide are still out of school. Abolishing school fees has increased enrollment rates in several countries where enrollments were low and fees were high. However, such policies may be less effective, or even have negative consequences, when supply-side responses are weak. The first part of the thesis evaluates the impacts of a tuition waiver program in Haiti, which provided public financing to nonpublic schools conditional on not charging tuition. The chapter concludes that school's participation in the program results in more students enrolled, more staff, and slightly higher student-teacher ratios. The program also reduces grade repetition and the share of overage students. While the increase in students does not directly equate to a reduction in the number of children out of school, it does demonstrate strong demand from families for the program and a correspondingly strong supply response from the nonpublic sector.Pertaining degree completion, it is well established that natural disasters can have a negative effect on human capital accumulation. However, a comparison of the differential impacts of distinct disaster classes is missing. Using census data and information from DesInventar and EMDAT, two large disaster databases, the second part of the thesis assesses how geological disasters and climatic shocks affect the upper secondary degree attainment of adolescents. The chapter focuses on Mexico, given its diverse disaster landscape and lack of obligatory upper secondary education over the observed time period. While all disaster types are found to impede attainment, climatic disasters that are not infrastructure-destructive (e.g. droughts) have the strongest negative effect, decreasing educational expansion by over 40%. The effects seem largely driven by demand-side changes such as increases in school dropouts and fertility, especially for young women. The results may also be influenced by deteriorated parental labor market outcomes. Supply-side effects appear to be solely driven by infrastructure-destructive climatic shocks (e.g. floods). These findings thus call for differential public measures according to specific disaster types and an enhanced attention to climatic events given their potentially stronger impact on younger generations.It is also widely appreciated that natural disasters can have negative impacts on local labor market outcomes. However, the study of differential types of negative capital shocks, the underlying labor market mechanisms, and the context of the poorest countries have been neglected. Following testable predictions of economic theory, the third part of the thesis exploits the exogenous variation of destruction of human and physical capital caused by the 2010 Haiti earthquake to disentangle the differential impact on local individual monetary returns to education. Employing individual-level survey data from before and after the earthquake the chapter finds that the returns decreased on average by 37%, especially in equipment-capital intensive industry. Higher educated individuals adjust into low-paying self-employment or agriculture. The returns are particularly shock-sensitive for urban residents, migrants, males, and people over age 25. / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

Cette thèse est une contribution à l’analyse économique des institutions politiques et économiques dans les pays en développement. Elle s’inscrit dans la lignée des travaux de la Nouvelle Economie Institutionnelle et de la Nouvelle Economie Politique. Précisément, nous nous intéressons aux institutions telles que la constitution, la corruption et la démocratie. Cette thèse est structurée en cinq chapitres. Le chapitre 1 aborde la problématique des institutions dans sa globalité. Dans ce chapitre, nous définissons le terme institutions comme : « règle et contrainte », « instrument de gouvernance » et « équilibre de jeux ». Nous discutons ensuite des théories du changement institutionnel. Enfin, nous identifions les facteurs influençant la qualité des institutions. Dans le chapitre 2, nous revisitons la théorie de la modernisation. Nos différentes analyses empiriques nous conduisent à conclure que la théorie de la modernisation, telle que définie actuellement et selon laquelle l’éducation, le revenu, l’urbanisation et l’industrialisation influencent la démocratie, n’explique pas la dynamique négative de démocratie en Afrique. Dans le chapitre 3, nous démontrons que le manque d’expérience parlementaire à l’indépendance exerce un effet négatif sur la qualité de la démocratie en Afrique plusieurs années après les indépendances. Le chapitre 4 aborde la problématique du changement constitutionnel en Afrique. Il identifie les facteurs qui influencent la tentative et la réussite du changement de l’article constitutionnel sur la limitation du nombre de mandats présidentiels, et montre qu’ils sont d’ordre institutionnel, macroéconomique, culturel et socioculturel. Enfin, le chapitre 5 met en évidence le fait que les déterminants de la corruption varient selon le niveau de développement des pays et selon les zones géographiques. / This thesis is a contribution to the economic analysis of political and economic institutions in developing countries. It is in line with the works of the new institutional economics and the new political economics. Precisely, we are interested in institutions such as constitution, corruption and democracy. This thesis is articulated around five chapters. The first chapter provides a global approach of the analysis of institutions. In this chapter, we define institutions as « rule and constraint », « governance tool » and « game equilibrium ». Then, we discuss the theories of institutional changes. Finally, we identify the key drivers of the institutional quality. In the second chapter, we revisit the modernization theory. The empirical analyses lead to the conclusion that the modernization theory according to which the democracy is mainly driven by the level of education, income, urbanization and the industrialization do not explain the negative dynamic of the democratic process in Africa. In chapter 3, we show that the lack of parliamentary experience at the independence has a negative persistent effect on the current state of democracy in Africa. Chapter 4 adresses the issue of constitutional changes in Africa. It shows that the factors which affect the attempt and the success of the change of the article limiting the number of presidential terms are of institutional, macroeconomic, cultural and sociocultural order. Finally, chapter 5 highlights the fact that the determinants of corruption vary according to the country’s level of development and according to the geographic area.

This dissertation seeks to contribute to the policy discussion on how to design efficient and sustainable energy policies. In three self-contained chapters, it applies microeconomic theory and empirical analysis to identify three market failures in European energy markets and to evaluate specific policy measures that strive to overcome these failures in order to increase market efficiency and to enhance environmental or societal sustainability. Chapter 1 and 2 study European electricity markets, which play an important role in the transition towards a carbon-neutral energy future. Overcoming barriers to efficient electricity markets is a crucial step to keep the costs of this transition as low as possible to society. Both chapters focus on obstacles to electricity market efficiency that have recently been highlighted by the European Commission. On the supply side, subsidies for renewable electricity may distort production incentives and competition in wholesale electricity markets. Chapter 1 applies a theoretical model to study the effect of different subsidies on producer strategies and competition in wholesale electricity markets. On the demand side, the European Commission seeks to overcome the reluctance of residential electricity consumers to switch electricity supplier in order to ensure effective competition in the retail electricity market. Chapter 2 empirically quantifies different reasons for switching inertia using a structural discrete choice model and performs counterfactual analysis to study the effect of different policy measures that seek to overcome switching inertia. Chapter 3 looks at the building sector, which accounts for 40% of final energy consumption in Europe and is a major emitter of carbon emissions. In the residential housing market information asymmetries hamper incentives to invest in energy efficiency improvements of rental property. This chapter empirically analyzes the effect of a European policy that mandates the use of energy performance certificates aiming at establishing an efficient market for energy efficient dwellings. / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

Les questions de légitimité et de stabilité des systèmes politiques ont longtemps été étudiées séparément des problèmes de mise en oeuvre du droit en sciences économiques. L’objectif de cette thèse est concilier ces différentes approches afin de replacer la mise en oeuvre de la norme juridique au centre du débat institutionnel. Ce travail se décompose en cinq investigations empiriques ou expérimentales portant chacune sur une des étapes du processus politique et judiciaire.Le premier article s’intéresse à l’impact des droits constitutionnels sur les dépenses publiques. La seconde étude explore l’influence des biais d’auto-complaisance sur la demande et l’offre de redistribution. Le troisième travail analyse les décisions rendues par le Conseil Constitutionnel. La quatrième partie examine la réforme de la carte judiciaire des Conseils de Prud’hommes de 2008. Le dernier chapitre étudie la relation entre la composition syndicale des Conseils de Prud’hommes et les issues des litiges qui y sont portés.Nos analyses reposent sur les outils économétriques et expérimentaux. Elles font usage de méthodes d’estimations classiques (OLS, GLS, Probit, Logit, Within OLS), de modèles à sélection (Heckman, Triprobit), des outils destinés aux problèmes d’endogénéité (2SLS)et des techniques d’estimation de systèmes d’équation (3SLS). L’approche expérimentale contient également des tests statistiques communément appliqués (tests de permutation,tests de comparaison de moyenne, tests de proportion) ainsi que de récentes méthodes pour traiter l’hétérogénéité (wild clustering). / The legitimacy and the stability of political systems have very often been studied in economics separate from considerations about legal norms’ enforcement. My objective is to combine these different approaches, and to place the question of the legal enforcement at the heart of the debate about institutions. This work is made of cinq empirical and experimental investigations that deal with each of the stages of the political and legal process.This first paper analyzes the impact of constitutional rights on public expenditures. The second article explores the influence of self-serving biases on the demand and the supplyof redistribution. The third analysis focuses on the decisions of the French Constitutional Council. The fourth work deals with the recent reform of the judiciary map of Frenchlabor courts. The last study investigates the relationship between the composition of the elected jurors in French labor courts and the way cases are terminated.Our investigations rely on econometric and experimental techniques. They use standard estimation methods (OLS, GLS, Probit, Logit, Within OLS), selection models (Heckman,Triprotibt), techniques for endogeneity correction (2SLS), and methods to estimate systems of equations (3SLS). The experimental analysis makes use of standard statistical tests(permutation tests, proportion tests, two-group mean-comparison tests), and more recent methods to solve heterogeneity (wild clustering).