Division One: “Malthus Gets Fat” (Two Chapters) Chapter One develops a simple dynamic model to examine the takeoff from a Malthusian economy to a modern growth regime. It finds that several factors, most notably the rate of technological progress and the economic structure, determine the fastest rate at which the population can grow without declining living standards; this is termed maximum sustainable population growth. It is only when this maximum sustainable rate exceeds the peak rate at which a society expands that takeoff can occur. I also investigate the effects of trade and international income transfers on the ability to sustain takeoff. It is also shown that present income growth is not necessarily indicative of the ability to sustain takeoff and that factors which increase current income growth may actually inhibit takeoff, and vice versa. Chapter Two applies the sustainable population growth framework to Britain during the Industrial Revolution. The model shows a dramatic increase in sustainable population growth at the time of the Industrial Revolution, well before the beginning of modern levels of income growth. The main contributions to the British breakout were technological improvements and structural change away from agricultural production. At least until the middle of the 19th Century, coal, capital and trade played a minor role. Division Two: “Leverage and Financial Market Instability” (Four Chapters) Chapter One develops a model of how leverage induces explosive behavior in financial markets. I show that when levered investors become too large relative to the market as a whole, the demand curve for securities can suddenly become upward-sloping as levered investors are exposed to forced liquidations. The size and leverage of all levered investors defines the minimum elasticity-adjusted market size for stability or MinEAMASS, which is the smallest elasticity-adjusted market size that can support the group of levered investors analyzed. This gives rise to a measure of instability that can predict when markets become vulnerable to a leverage-driven market liquidity crisis. Chapter Two iterates the model of Chapter One forward in time to generate an inflating bubble that suddenly bursts, reproducing many of Kindleberger's (1996) stylized facts about the dynamics of bubbles in a simple framework. Chapter Three applies my measure of instability in a historical investigation of the 1998 demise of hedge fund Long-Term Capital Management (LTCM). I find that a forced liquidation of LTCM threatened to destabilize some financial markets, particularly for bank funding and equity volatility. Chapter Four discusses how the model applied to the stock market crash of 1929. There the evidence suggests that a tightening of margin requirements in the first nine months of 1929 combined with price declines in September and early October caused enough investors to become constrained that the market was tipped into instability, triggering the sudden crash of October and November.

The aim of this work is to analyze the changes in family behavior in Czech Republic especially using the framework of the second demographic transition. Attention was focused on the analysis of attitudes towards new form partnerships and childbearing and development reproductive behavior in Czech Republic. In this analysis using data of two surveys ISSP (1994, 2002, 2012) and EVS (1990, 1999, 2008). The trajectories of changes in Czech Republic were compared with trajectories of transformation in selected post-communist countries. Different trajectories of transformation have been identified for postcommunist countries. The results in many aspects suggested Czech Republic has been approaching the North-western European countries. However, important the Czech Republic seems to be much further in the process of the second demographic transition in comparison with many post- communist countries. Keywords family behavior, attitude, family, the second demographic transition, postcommunist countries

The thesis is focused on the current state of families in the Czech Republic and its individual regions. In addition to the basic characteristics of the family, this work captures the changes undergone by the family, especially in the areas of marriage and parenthood. The diploma thesis also analyzes the behavior of the Czech population through relevant statistical indicators, such as marriage, divorce, birth and fertility in the period of 1991-2008, both at the national level and at the district levels. Based on the analysed results of the statistical indicators, the author assesses whether there exist differences between individual regions of the Czech Republic, which relate to the family behavior of the population.

Lucie Vítková: Populační vývoj zemí po demografické revoluci Abstract The aim of the thesis is an analysis of main features of population development in developed countries and a question whether there is homogeneity of population development. Demographic revolution is a qualitative change from extensive to intensive character of demographic reproduction and it is a subject to modernization. Countries which are understood not only as demographically developed ones but also as economically developed has been taken as an object of this thesis. These countries finished demographic revolution at the latest in the middle of the 20th century. This period has been used as a starting point for most analysis which has been carried out. Demographic reproduction is a process determined by biological and social factors. Human reproduction takes place in relatively stable limits, which lead to its homogenization. The importance of social conditionality has grown during demographic revolution, social aspects are the cause of their development changes and specific features, same social conditions lead to homogenization. Presumption of different features of population development as consequence of different conditions in former Eastern and Western countries has been confirmed not only in individual main demographic indexes...

The paper uses data from 2003 Multiscopo Italian Survey to estimate education effects on fertility and in particular to determine how and to what degree does unobserved heterogeneity influence the estimated effects, that is to say how unobserved heterogeneity might bias estimates of effects of education on transition to 1st, 2nd and 3rd births. The peculiarity of this study is the implementation of a multiprocess approach, which allows for a broader and more efficient view of the phenomenon, studying jointly the transition to first, second and third or higher order births. In doing this I will use control variables, in particular educational level of the mother and her siblings (i.e. partner and grandmother), to detect possible influences of education in childbearing timing. Moreover, this topic has not yet been analysed using Italian data, in particular using Multiscopo Survey data and it may produce interesting comparisons with regard to other European countries, where the topic has already been addressed. In this study I will prove that number of siblings is the variable, which has a significative and relevant effect in all the models considered and that women partner’s education has an up-and-down effect on transition to childbearing. Moreover, the inclusion of unobserved characteristics of women has an important role in understanding transition to childbearing, being positive and significant.

The proportion of children born outside of marriage in Chile increased from 15.9 percent in 1960 to 64.6 percent in 2008. Similar increases have been taken elsewhere as indicative of a Second Demographic Transition (SDT). In this dissertation, I study differences between married and unmarried mothers in Chile and the reasons why such a large proportion of children are born outside of marriage, with the goal of understanding whether the demographic changes we are observing in the country are part of a global movement towards the SDT. The data comes from a postpartum survey implemented in Santiago, the capital city. I analyze differences between women according to the family arrangement they live in, including married women in nuclear households, married women in extended households, cohabiters in nuclear households, cohabiters in extended households, visiting mothers, and single mothers. I consider women’s socioeconomic wellbeing, emotional wellbeing, social support, attitudes and values, and reproductive health. The results show large demographic and socioeconomic differences, marking the socioeconomic advantage of married women in nuclear households, who are the oldest, and the disadvantage of cohabiters in extended households, visiting and single mothers, who are the youngest women in the sample. Married women in extended households and cohabiters in nuclear households are between these two poles. Differences in emotional wellbeing exist, benefiting married women in nuclear households, but they are not so large. Differences in social support continue delineating married women in nuclear households as a privileged group, but visiting mothers appear as a highly supported group too. There are not large differences in attitudes and values, as most women continue holding conservative attitudes on family issues, and most unmarried mothers plan to marry. Differences in reproductive health are large, showing that unplanned births and contraceptive failure are high in the underprivileged and youngest groups. Unmarried women seem to accept their pregnancies with no pressure to marry, and to give priority to other goals, such as their careers and homeownership, before the wedding, which they do not discard for the future. Under these circumstances, it is hard to interpret recent demographic changes in Chile as a SDT. / text

This thesis studies the long-run relationship between gender equality and economic growth. In particular, it aims at understanding and explaining the mechanisms and determinants underpinning the development process which allowed economies to move out of a long period of stagnation into a state of sustainable economic growth. The scientific objective is to check the validity of the central hypothesis that improving equality between men and women is a key ingredient of the demographic transition and of the process of socio-economic development. Quantitative and empirical analysis of this relationship is based on a renewed cliometric approach. Hence we aim at producing a quantitative projection of social sciences in the past, structured by economic theory, mathematical modeling, and informed by statistical and econometric methods. The projected innovation is to build a bridge between the theoretical models of growth and economic history. This new line of research between pure empiricism and abstract theory allows to interpret economic issues taking into account the past and in so doing, to understand more deeply the economic and social historical processes.

[pt] Há pouca resposta das taxas nominais de juros ao movimentos da inflação na segunda metade do Século XIX, enquanto a equação de Fisher prevê uma relação de um para um da taxa nominal de juros à inflação. A maior parte das respostas a essa observação dependem, de algum jeito, de argumentos sobre a irracionalidade dos agentes econômicos (Fisher (1906), Friedman e Schwartz (1982), Summers (1983) e Barsky e De Long (1991), por exemplo), ou argumentam que os dados desse período são falhos (Perez e Siegler (2003)). Nessa dissertação, eu argumento que a taxa de juros nominal não aumentou o quanto deveria não por irracionalidade dos agentes, mas sim porque a taxa natural de juros abaixou como resposta a uma transição demográfica nesse período, atribuída às melhoras na infraestrutura de saúde pública e a avanços na ciência médica. Eu construo um modelo de gerações imbricadas estilizado com base em Gertler (1999) que captura algumas das principais características da economia americana desse período. Então, calibro-o e conduzo experimentos demográficos para mostrar que o principal argumento de Barsky e De Long (1991) contra o efeito Fisher não prossegue caso se cancelem os efeitos da transição demográfica. / [en] There is little response of nominal interest rates to inflationary movements in the second half of the Nineteenth Century, while the Fisher equation would predict a one-to-one relation between these economic variables. Most of the previous answers to this observation rely on some sort of irrationality argument (Fisher (1906), Friedman and Schwartz (1982), Summers (1983) and Barsky and De Long (1991) are some examples) or state that there are problems in the data used (Perez and Siegler (2003)). In this thesis, I argue that this is not due to agent irrationality, but to the lowering of the equilibrium interest rate level as a response to a demographic transition attributed to advances in medical science and enhancements in sanitation infrastructure. I build an stylized overlapping generations model based on Gertler (1999) that captures the main features of the American Economy during this period, then calibrate it and conduct experiments to show that Barsky and De Long s (1991) strike on the Fisher Effect does not hold when the demographic channel is turned off.

L'Homme est le bénéficiaire ultime et l'intrant essentiel du développement et de la croissance. Le capital humain identifié comme moteur de la croissance économique est fortement lié à la variable démographique. L'institution familiale par ses décisions de fécondité et d'investissement en éducation de ses membres est un préambule pour la formation du capital humain. L'intérêt est porté, alors, à l'interaction entre la quantité et la qualité de l'Homme. Notre étude de la croissance économique est conduite par l'analyse de la fécondité comme variable de croissance économique. Elle cherche à dégager les influences de la fécondité notamment par ses interactions avec l'éducation dans l'explication des performances économiques. Grâce à des analyses: macro et microéconomique, nous vérifions la présence d'une association éducation-fécondité et sa contribution dans le processus de la croissance pour la Tunisie. Une analyse quantitative dynamique du lien entre la fécondité, l'éducation et la croissance économique aussi bien à long terme qu'à court terme au cours de la période 1963-2007 est entreprise employant les techniques de séries temporelles. Aussi, une analyse quantitative de la fécondité : naturelle, désirée, réelle, de l'écart et de la régulation est mise en œuvre par des modèles micro économétriques tels que ceux de choix discret, de comptage et de durée. Elle prouve que le comportement des ménages est guidé par l'arbitrage entre la quantité et la qualité d'enfants et met en évidence les déterminants économiques et socioculturels. Ces analyses permettent d'annoncer les politiques cadrant le comportement familial de fécondité dans le processus de développement. / Human is the final benefit and the essential input of economic growth and development. Human capital as an economic growth driving force is strongly influenced by demographic variables. Family institution is a preliminary for human capital accumulation considering its fertility and education investment in its member's decision. Hence, human capital analysis leads necessary to endogenous population growth. Then, our interest is focused to human quantity and quality interaction. Our economic growth investigation is so conducted by analysing fertility as economic growth variable. Our essay is to put out fertility influences notably by its interaction with education in explaining economic performances. Referring to macro and micro economic family analysis, we verify education/fertility relationship and its contribution in the growth process in Tunisian case. A long and short dynamic quantitative analysis of fertility, education and growth equilibrium relationship over the period 1963-2007 is undertaken using times series technique. Although a quantitative analysis of actual, desired, their gap, natural and regulation fertility is applied using micro econometric models such as dichotomous model, count data model and duration model. It attests that Tunisian household behaviour is shaped by quantity-quality children trade-off and also highlights economic and sociocultural fertility determinants. These analyses give out policies matching family fertility behaviour in the development process.

Cette thèse étudie la relation de long terme entre égalité hommes-femmes et croissance économique. Plus particulièrement, elle vise à comprendre et à expliquer les mécanismes et les déterminants sous-jacents au processus de développement qui a permis aux économies de sortir d’une longue période de stagnation à un état de croissance économique durable. L’objectif scientifique est de vérifier la validité de l’hypothèse que l’amélioration de l’égalité entre hommes et femmes est un ingrédient clef de la transition démographique et du processus de développement socio- économique. L’analyse quantitative et empirique de cette relation est basée sur une approche cliométrique. Cette approche consiste à produire une projection quantitative des sciences sociales dans le passé, structurée par la théorie économique et informée par les méthodes statistiques et économétriques. L’innovation projetée est de construire un pont entre les modèles théoriques de la croissance et l’histoire économique. Cette nouvelle ligne de recherche entre empirisme pur et théorie abstraite permet d’interpréter les questions économiques en tenant compte du passé et, ce faisant, de comprendre plus en profondeur les processus historiques économiques et sociaux. / This thesis studies the long-run relationship between gender equality and economic growth. In particular, it aims at understanding and explaining the mechanisms and determinants underpinning the development process which allowed economies to move out of a long period of stagnation into a state of sustainable economic growth. The scientific objective is to check the validity of the central hypothesis that improving equality between men and women is a key ingredient of the demographic transition and of the process of socio-economic development. Quantitative and empirical analysis of this relationship is based on a renewed cliometric approach. Hence we aim at producing a quantitative projection of social sciences in the past, structured by economic theory, mathematical modeling, and informed by statistical and econometric methods. The projected innovation is to build a bridge between the theoretical models of growth and economic history. This new line of research between pure empiricism and abstract theory allows to interpret economic issues taking into account the past and in so doing, to understand more deeply the economic and social historical processes.