Subsidising investment in lagging regions is an important regional policy instrument in many countries. Some argue that this instrument is not specific enough to concentrate the aid towards the regions that are lagging behind most, because investment subsidies benefit capital owners who might reside elsewhere, possibly in very rich places. Checking under which conditions this is true is thus highly policy relevant. The present paper studies regional investment subsidies in a multiregional neoclassical dynamic framework. We set up a model with trade in heterogeneous goods, with a perfectly integrated financial capital market and sluggish adjustment of regional capital stocks. Consumers and investors act under perfect foresight. We derive the equilibrium system, show how to solve it, and simulate actual European regional subsidies in computational applications. We find that the size of the welfare gains depends on the portfolio distribution held by the households. If households own diversified asset portfolios, we find that the supported regions gain roughly the amounts that are allocated to them in the form of investment subsidies. If they only own local capital stocks, a part of the money is lost through the drop in share prices. From the point of view of total welfare, the subsidy is not efficient. It can lead to a welfare loss for the EU as a whole and definitely leads to welfare losses in the rest of the world, from where investment ows to the supported EU regions.

Subsidising investment in lagging regions is an important regional policy instrument in many countries. Some argue that this instrument is not specific enough to concentrate the aid towards the regions that are lagging behind most, because investment subsidies benefit capital owners who might reside elsewhere, possibly in very rich places. Checking under which conditions this is true is thus highly policy relevant. The present paper studies regional investment subsidies in a multiregional neoclassical dynamic framework. We set up a model with trade in heterogeneous goods, with a perfectly integrated financial capital market and sluggish adjustment of regional capital stocks. Consumers and investors act under perfect foresight. We derive the equilibrium system, show how to solve it, and simulate actual European regional subsidies in computational applications. We find that the size of the welfare gains depends on the portfolio distribution held by the households. If households own diversified asset portfolios, we find that the supported regions gain roughly the amounts that are allocated to them in the form of investment subsidies. If they only own local capital stocks, a part of the money is lost through the drop in share prices. From the point of view of total welfare, the subsidy is not efficient. It can lead to a welfare loss for the EU as a whole and definitely leads to welfare losses in the rest of the world, from where investment ows to the supported EU regions.

This thesis investigates the pattern of parental educational homogamy and its implications for parenting practices and children’s early development in contemporary Britain. At the heart of the thesis lies an interest in the mechanisms behind the intergenerational transmission of educational success and, more specifically, the consequences for children of new patterns of parental resemblance in education. The thesis is composed of three empirical chapters, each of which is concerned with a different outcome: 1) trends in educational attainment and educational assortative mating amongst parental couples; 2) parents’ childrearing values and stimulation-oriented interactions with children; and 3) children’s early cognitive and behavioural skills. The first chapter combines data from four birth cohort studies from 1958, 1970, 1990 and 2000-01 while the second and third chapters rely exclusively on the latter study. The empirical analyses use Log-linear and Diagonal Reference models. With regard to trends in educational assortative mating, the thesis finds that the strength of homogamy increased between 1958 and 1970 to decrease thereafter and remain stable, at its lowest level, throughout the 1990s. Moreover, amongst recent cohorts of parental couples the percentage of unions where mothers are more educated than their male partners equalled that of unions exhibiting the opposite pattern. The findings concerning the dynamics of parenting in heterogamous couples suggest a pattern of female dominance in the attitudinal domain as fathers align with the views that can be expected on the basis of the mother’s level of education rather than their own; however, no significant adjustments between partners are observed in parenting behaviours. Lastly, the thesis finds a positive gradient in the association between parental education and children’s early cognitive and socio-emotional development but little or no support for the hypotheses of differential effects for sons and daughters or gender biases in parental preferences for children. That is, no significant interactions are observed between the gender of children and the impact of parents’ absolute and relative levels of education. Taken together, the findings of the thesis qualify concerns about the increase of educational assortative mating in industrialised societies and its potential consequences for the intergenerational reproduction of inequalities in education.

La phénologie du débourrement est un caractère adaptatif majeur, sensible aux variations de température. Prédire l'évolution des forêts naturelles tempérées sous l'influence de changements environnementaux nécessite de pouvoir expliquer l'origine des patrons de différentiation clinaux observés pour ce caractère à l'échelle de paysages. Il a été démontré expérimentalement que le débourrement végétatif se produisait en même temps que la floraison. Cela suggère que les croisements se font préférentiellement entre arbres présentant des phénologies du débourrement similaires ; c'est ce que l'on appelle l'homogamie. Alors que la plupart des interprétations de clines de différenciation génétique soulignent l'influence de la sélection divergente, les spécificités de la phénologie du débourrement et ses conséquences sur le système de reproduction sont rarement considérées. A travers une approche par modélisation nous montrons ici dans un premier temps que la seule interaction entre homogamie et flux de pollen peut générer une différentiation génétique clinale à l'échelle d'un paysage sans aucune pression de sélection. Dans un tel contexte théorique, le filtragedes flux de pollen réalisé par l'homogamie en présence d'un gradient environnemental différencie progressivement et durablement les populations. Dans un second temps, nous montrons que l'homogamie amplifie la réponse adaptative des populations à la sélection co-gradient alors qu'il la contraint dans le cas de sélection contre-gradient. Nous montrons par ailleurs que l'homogamie peut induire une différentiation clinale en cas de sélection uniforme. / Timing of bud burst (TBB) is a key adaptive trait affected by temperature variations. Predicting the evolution of natural forests undergoing environmental variations requires to understand the evolutionary dynamics that have resulted in the strong patterns of differentiation characterized for this trait. It has been shown experimentally that the TBB was strongly correlated with the timing off lowering. This suggests that trees having similar TBB tend to mate preferentially, making assortative mating at TBB the default reproduction regime within tree species. Clinal patterns of genetic differentiation have been mostly interpreted as resulting from divergent selection, however, few studies have considered the peculiar features of timing of bud burst. Through a modelling approach based on quantitative genetics models, we first demonstrate here that the sole interaction between assortative mating at TBB and pollen flow can induce a clinal differentiation among populations without any selection pressure. In a such theoretical context, assortative mating filters pollen flow in presence of environmental gradients and progressively shifts the genetic values of populations. Then, we demonstrate that assortative mating amplifies the adaptive response of populations to co-gradient selection, and constrains it in the case of countergradient selection. Finally, we show that assortative mating differentiates populations even in the case of uniform selection.

All three essays in this thesis are concerned with the interrelation of family, gender and labour market outcomes. The first paper investigates family earnings mobility between parents and sons, and parents and daughters, highlighting the role of assortative mating. The results suggest that daughters are more mobile than sons. I also find that Sweden has a higher degree of mobility compared to the U.S., and that assortative mating is an important underlying channel for earnings transmission. The difference in mobility between the two countries does not inherently depend on factors affecting the marriage match. Moreover, adult economic outcomes are more dependent on family background for those at the lower end of the earnings distribution. The second study analyses the long-run effects of an increase in family size on the 1980-2005 labour market outcomes of Swedish men and women. The decision to have (more) children is dependent on current and future labour market prospects. I use the exogenous variations in the sex composition of the first two children to overcome this endogeneity problem. My findings suggest that having an additional child has a stronger negative impact on earnings than on participation. However, mothers experience a substantial but not complete long-term recovery in earnings. The third paper illustrates the difficulty in disentangling the underlying channels of intergenerational earnings persistence using a path analysis model. On closer examination, such a model has a potential shortcoming since the covariates are correlated to other unobserved factors. The results suggest that education is the most influential mechanism in the earnings transmission process, while IQ, mental ability and BMI are of secondary importance. However, education is sensitive to the inclusion of other covariates and the order in which these are entered into the equation. / At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Manuscript. Paper 3: Manuscript.

We develop a model to explain two-way migration of high-skilled individuals between countries that are similar in their economic characteristics. High-skilled migration results from the combination of workers whose abilities are private knowledge, and a production technology that gives incentives to firms for hiring workers of similar ability. In the presence of migration cost, high-skilled workers self-select into the group of migrants. The laissez-faire equilibrium features too much migration, explained by a negative migration externality. We also show that for sufficiently low levels of migration cost the optimal level of migration, while smaller than in the laissez-faire equilibrium, is strictly positive. Finally, we extend our model into different directions to capture stylized facts in the data and show that our baseline results also hold in these more complex modelling environments.

The long-term genetic consequences of supportive breeding programs are not well understood. Nevertheless, stocking populations with hatchery-produced fish to compensate for losses of natural production are common practice, for example after constructions of hydroelectric power dams. Hatcheries typically fertilize eggs using ‘mixed-milt fertilizations’, without consideration to natural reproductive behaviours, and hence, natural selective regimes would be altered. Here, a series of experiments with focus on Mhc and mate choice in a population of brown trout (Salmo trutta L.) with a history of long-term stocking are presented. The major histocompatibility complex (Mhc) constitutes of genes coding for antigen presentation in the vertebrate immune system. In addition to the immunological function, Mhc genes might also influence reproductive behaviours such as mate choice. For example, in some species individuals are able to recognize Mhc genotypes of potential mates and to some extent base their mate choice on this information. Here, I address these questions on brown trout. Can the phenomena be observed in brown trout? Could such mechanisms help individuals to avoid inbreeding, or are other mechanisms important? How does the artificial rearing of fish for enhancement of natural populations relate to these issues? The results presented here, in combination with previous work, shows that several factors are important in the process of pair formation in salmonid species. For example, females of the studied population used more than a single criterion when choosing among the available mates Mhc genes and males with certain Mhc genotypes achieved more matings, possibly an effect from increased fighting ability. Further, the population appears to contain an unnatural high level of Mhc variation, and some results indicate that the population might suffer from outbreeding depression at the Mhc. These negative effects are most likely derived from compression of sub-populations after dam-construction, in combination with supportive breeding with no consideration to natural spawning behaviour.

Submitted by Murilo Esteves de Santi (murilo_es@hotmail.com) on 2016-07-12T17:47:22Z No. of bitstreams: 1 biblioteca.pdf: 575242 bytes, checksum: a061c3686ed763a0e9468ec7a8c130a0 (MD5) / Approved for entry into archive by GILSON ROCHA MIRANDA (gilson.miranda@fgv.br) on 2016-11-29T11:40:40Z (GMT) No. of bitstreams: 1 biblioteca.pdf: 575242 bytes, checksum: a061c3686ed763a0e9468ec7a8c130a0 (MD5) / Approved for entry into archive by Maria Almeida (maria.socorro@fgv.br) on 2016-12-06T13:22:08Z (GMT) No. of bitstreams: 1 biblioteca.pdf: 575242 bytes, checksum: a061c3686ed763a0e9468ec7a8c130a0 (MD5) / Made available in DSpace on 2016-12-06T13:23:59Z (GMT). No. of bitstreams: 1 biblioteca.pdf: 575242 bytes, checksum: a061c3686ed763a0e9468ec7a8c130a0 (MD5) Previous issue date: 2016 / I study the impact of the changes in the U.S. labor market that took place in the last few decades - such as the increase in the college wage premium and the reduction in the gender wage gap - on the intergenerational persistence of income, with a particular emphasis on the marriage market channel. To motivate my analysis, I document a positive cross-country correlation between intergenerational persistence of income (and education) and educational assortative mating. I then develop an overlapping generations model in which parents invest in their children's education and individuals choose whom they are going to marry, and estimate the model to fit the postwar U.S. data. My results suggest that both of these changes have affected the intergenerational earnings persistence, but that the marriage decision plays only a very small role in these results.

Submitted by Lorena Hakak Marçal (lhakak@gmail.com) on 2016-07-15T01:32:34Z No. of bitstreams: 1 main_tese.pdf: 1165233 bytes, checksum: 3c715e88460a5637db424c8ffb2ac64b (MD5) / Rejected by Letícia Monteiro de Souza (leticia.dsouza@fgv.br), reason: Prezada Lorena, Favor alterar seu trabalho de acordo com as normas ABNT: 1: O nome Getulio não tem acento. Favor alterar de todas as páginas que constam o nome incorreto. 2: Capa, contra-capa e demais sessões devem estar em português, língua oficial da Fundação. 3: A numeração das páginas não deve aparecer até a Introdução, porém devem contabilizar desde a primeira página. Além disso, a paginação deve estar a direita da página. 4: O título das sessões Agradecimentos, Abstract e Resumo devem ser em fonte de tamanho 12, em caixa alta, negritado e centralizado. Atenciosamente, Letícia 3799-3631 on 2016-07-15T11:53:44Z (GMT) / Submitted by Lorena Hakak Marçal (lhakak@gmail.com) on 2016-07-15T17:39:58Z No. of bitstreams: 1 main_tese.pdf: 1164308 bytes, checksum: c13c0208ff92eb7996f56a8420fa7c53 (MD5) / Rejected by Letícia Monteiro de Souza (leticia.dsouza@fgv.br), reason: Prezada Lorena, Favor fazer a ultima alteração em seu trabalho para que possa ser aprovado: No cabeçalho, onde se encontra 'FUNDAÇÃO GETULIO VARGAS' Favor colocar "ESCOLA DE ECONOMIA DE SÃO PAULO", pois deve permanecer em português. Atenciosamente, Letícia Monteiro 3799-3631 on 2016-07-15T18:33:29Z (GMT) / Submitted by Lorena Hakak Marçal (lhakak@gmail.com) on 2016-07-15T20:34:11Z No. of bitstreams: 1 main_tese.pdf: 1164303 bytes, checksum: 064ad0fc52a52bcb5d49ae307cd0359b (MD5) / Approved for entry into archive by Letícia Monteiro de Souza (leticia.dsouza@fgv.br) on 2016-07-15T20:35:37Z (GMT) No. of bitstreams: 1 main_tese.pdf: 1164303 bytes, checksum: 064ad0fc52a52bcb5d49ae307cd0359b (MD5) / Made available in DSpace on 2016-07-15T20:43:19Z (GMT). No. of bitstreams: 1 main_tese.pdf: 1164303 bytes, checksum: 064ad0fc52a52bcb5d49ae307cd0359b (MD5) Previous issue date: 2016-06-20 / Society has changed in the past decades raising questions to be asked by social scientists and their impacts on family units. In this thesis we aim to analyze how agents’ decisions on marriage and education can be interconnected assuming that men and women have preferences for intra-group marriage. In our framework we find that preferences for intra-group marriage can increase the proportion of men and women who decide to get married and study. We also show that empirically for Brazilian data there is a positive assortative mating between people with same traits, such as, education, religion or race. In addition, married couples that share the same religion tend to have the same level of schooling. We investigate how changes in marital sorting, educational composition and returns to education that occurred in Brazil in the last years can impact in household income inequality. We calculate counterfactual scenarios for Gini Coefficient keeping one of these three variables fixed in one year and comparing the counterfactual values with the actual one. If marriage were formed randomly, the Gini Coefficient would be lower than the actual one. Keeping the returns to education fixed in year 2014 we also show that the counterfactual Gini would be lower than the actual one. / A sociedade mudou nas últimas décadas abrindo a possibilidade para cientistas sociais estudarem essas mudanças e analisar os seus impactos na unidade familiar. Nesta tese pretendemos analisar como as decisões dos agentes com relação a decisão de casar e estudar pode estar conectado considerando que homens e mulheres têm preferências pelo casamento intragrupo. No modelo estudado encontramos que as preferências para o casamento intragrupo podem aumentar a proporção de homens e mulheres que decidem se casar e estudar. Mostramos também que empiricamente há um positive assortative mating entre pessoas com as mesmas características, tais como, educação, religião ou raça. Além disso, a probabilidade de casais casados na mesma religião aumenta a probabilidade dos casais estarem casados dentro do mesmo nível de escolaridade. Considerando as mudanças em como os casais se formam, a composição educacional e os retornos da educação que aconteceram no Brasil nos últimos anos, investiga-se os impactos dessas mudanças na desigualdade de renda dos casais. Calculamos cenários contrafactuais para o Coeficiente de Gini mantendo uma dessas três variáveis fixas em um determinado ano, comparando o contrafactual estimado com o Gini real. Se o casamento for formado aleatoriamente com relação à educação, o Coeficiente de Gini seria menor do que o real. Mantendo os retornos da educação fixos no ano de 2014 encontramos um Gini contrafactual menor do que o real.

A critical mechanism underpinning current biological diversity is the extent to which one species mates with, or avoids mating with, another. However, little is known about the factors that mediate hybridisation, especially during the initial and rarely observed stages of secondary contact when interspecific interactions have not responded to selection. In particular, whilst hybridisation is ultimately a behavioural phenomenon, the role of behaviour in mediating hybridisation and how it is influenced by environmental and circumstantial factors is rarely investigated. Recently introduced species provide us with unequalled opportunities to study these factors. In this thesis I examine the role of behavioural mechanisms, in particular male-male competition and mate choice, in mediating mating patterns between two genetically and phenotypically distinct lineages of European wall lizard (Podarcis muralis) that have come into recent secondary contact through human introductions. In Chapter Two, I investigated how sexual selection during allopatry is responsible for creating stark differences in phenotypic traits such as body size and weapon performance evident in the two lineages today, ultimately explaining the strong biases in dominance during territorial disputes between males. However, I also show that even given this asymmetry in male competitive ability, the extent to which it extrapolates into greater access to females in naturalistic, outdoor enclosures depends strongly on the spatial clustering of basking sites, a critically important resource for many ectotherms. In contrast to initial predictions suggested by asymmetries in male competition outlined in the previous chapter, in Chapter Three I show that both paternity and courtship behaviour was strongly assortative in the outdoor enclosures. Further investigation through staged experiments on olfactory mate choice, mating trials and analyses on specific behavioural data obtained in an enclosure experiment, I show that lineage based dominance actually contributes to assortative mating patterns in conjunction with weak conspecific male choice. In contrast, female choice seems to play no role in mediating the mating patterns observed between the two lineages. In Chapter Four I had the rare opportunity to examine the morphological and behavioural factors that predict why animals should hybridise in the first place, using the data obtained in the enclosure experiment above. I found that hybridisation was particularly common between small individuals of the larger lineage and large individuals of the smaller lineage; a result that corroborates the mechanisms determining the assortative patterns uncovered in Chapter Three. Additionally, hybridisation rates were particularly high in less dominant individuals, which I suggest is due to subordinate males having reduced opportunities for courting conspecific females due to male-male competition, requiring them to become less ‘choosy’ and therefore more likely to mate with heterospecifics. Finally, secondary contact cannot occur without at least one lineage coming into a new environment, and yet relatively little attention is paid to how this environmental change can affect the signals involved in intraspecific communication and mate choice. In Chapter Five I show that a change in the amount of time male lizards spend thermoregulating (a likely consequence of arriving in a new environment) significantly changes the chemical composition of their scent marks. However, whilst female lizards were able to detect these effects, they did not seem to base their mating decisions on them. Nevertheless, this result raises interesting questions about the potential function and consequences of this plasticity, and highlights the importance of considering plasticity in chemical communication in heterogeneous environments. Overall, this thesis shows the critically important role of behaviour in mediating intra- and interspecific mating patterns during recent secondary contact. In particular, it highlights how the direction and extent of hybridisation and competition are influenced by the degree to which differing morphological and behavioural phenotypes interact over a heterogeneous environment, particularly during the initial stage of secondary contact when mate choice has not had the chance to respond to the selective pressures of hybridisation.