Les imperfections des marchés financiers et l'incomplétude des contrats financiers compliquent la conclusion d'ententes entre les firmes et les parties prenantes. Plusieurs solutions sont proposées pour réduire ces problèmes et faciliter la conclusion des contrats financiers. Les contrats étant enveloppés par un cadre institutionnel, ils en sont imprégnés et affectés. Les institutions sont donc une des solutions aux imperfections des marchés et à l'incomplétude des contrats. Les résultats de notre étude le prouvent clairement. Cette étude montre que le niveau de développement et la structure du système financier (en particulier la part relative des financements bancaires et de marché), les conditions de régulation du système bancaire (les formes et l’étendue de la supervision) et certaines caractéristiques des systèmes juridiques (la protection des créditeurs), ont un effet significatif sur les contraintes d'investissement. Il apparaît que la bonne qualité des institutions facilite l'accès aux financements et qu'elle renforce les garanties exigées pour l'octroi de la dette. De fait, la piètre qualité des institutions d’un pays constitue une entrave à l'accès au financement par le secteur privé. / The imperfections of financial markets and the incompleteness of financial contracts cause commitments between firms and stakeholders to become more complex. Several solutions are suggested in order to reduce such problems and to facilitate the conclusion of financial contracts. Contracts evolve within an institutional structure, an environment by which they are conditioned. Institutions are one of many solutions to market imperfections and to contract incompleteness. Results bring out relevant effects of the financial system’s development and structure (particularly the amount of banking over market financing), banking regulation (the supervisory methods and their extent) and some characteristics of the legal systems (such as creditor protection) on investment constraints. It appears that sound and healthy institutions facilitate access to funding and strengthen the collateral required to secure bank financing. Consequently, poor quality of a country’s institutions hinders access to financing by the private sector.

La tesi cerca di rispondere alla domanda: 'La libanese intifadha al-Iqtad poteva essere prevista?'. la tesi prima definisce l'evento politico, e. Successivamente esamina le condizioni epistemologiche in base alle quali una predizione del futuro possa essere considerata scientifica. In terzo luogo, propone uno schema di previsione organizzato in funzione del coinvolgimento degli agenti nella creazione della storia umana. Infine, analizza la intifadha al-Iqtad in base allo schema analitico proposto. / The thesis aims to answer the question 'could the Lebanese Intifadha al-Iqtad have been predicted?' In order to do so, it first of all tries to define the political event, in terms of features, dynamic, and outcome. Secondly, it outlines the epistemological assumptions on which a scientific prediction of the future could be based. Thirdly, it puts forward a framework for foreseeing the future organised on different levels and divided into macro-categories. Finally, it analyses the Lebanese Intifadha al-Iqtad according to the proposed framework.

Regardless of culture, socio-economic background, and quality of life, all students deserve the highest quality of education. But the reality is, many education systems around the world do not offer it. Investing in structural reforms in education has the potential to boost economic growth in countries around the world. By learning from different education systems strengths and weaknesses, policy decisions can be made that ensure students are given the opportunity for higher educational outcomes. This study analyzes high, middle, and low quality education systems around the world and the infrastructures that lead to educational success or failure. Fifteen education systems are chosen for this study which includes Shanghai-China, Singapore, Japan, Finland, Canada, Portugal, United States, Luxembourg, Spain, Hungry, Brazil, Argentina, Indonesia, Qatar, and Peru. Each system is analyzed in terms of its teacher quality, curriculum, school system structure, and educational equity. From this study, it appears that there is a high-correlation between four indicators and top- educational success. These four indicators include having a highly selective model for hiring teachers, recruiting teachers from a top-pool of graduates, having a high-level of prestige held for teachers in society, and insuring students of low socio-economic status are given equal educational opportunities for success. Recommendations for a new teacher training and selection model are discussed based on the top four indicators. These recommendations could cause educational gains for both the United States and other systems around the world.