Fractional variational problems depending on indefinite integrals and with delay

The aim of this paper is to exhibit a necessary and sufficient condition of optimality for functionals depending on fractional integrals and derivatives, on indefinite integrals and on presence of time delay. We exemplify with one example, where we nd analytically the minimizer.

The Spatial Convergence of Knowledge in Portugal

Human resources are an essential element in territorial development. When these are characterized by a high level of training, they also enhance a number of effects in fundamental areas of binomial territorial-social cohesion. In this respect, the existence of higher education institutions throughout the territory allows the spread of human resources’ qualification but, by itself, does not guarantee the retention of these resources in different regions. Thus, the objective of this paper is to undertake a spatial analysis of convergence of knowledge through studying the evolution of the percentage of population with higher education in the periods elapsed between the last three censuses in Portugal. Although that percentage has risen appreciably, the convergence is shown to be (very) insignificant.

On the spatial convergence of (un)employment in Portugal

Regarding the EU policies of territorial cohesion is common to assume that, having the same been successful (in Portugal), regional disparities decreased. The purpose of this article is to assess the veracity of this allegation, for that considering the values of employment and unemployment rates by municipalities, determined in the last two censuses held in Portugal, i.e. 2001 and 2011. In doing so, spatial econometric techniques are used, namely local indicators of spatial association and spatial clusters, in order to better understand the eventual process of spatial convergence that may have occurred in Portugal in that period. The results point towards a spatial convergence of employment rates (both in total and by genres) and also of female unemployment rates but a spatial divergence of male unemployment rates.

Editorial Note: Regional Disparities and Convergence

This number of the IJLTFES – International Journal of Latest Trends in Finance and Economic Sciences – is dedicated specifically to Regional Disparities and Convergence.

Higher-order variational problems of Herglotz type

We obtain a generalized Euler–Lagrange differential equation and transversality optimality conditions for Herglotz-type higher-order variational problems. Illustrative examples of the new results are given.

Worldwide convergence of IFRS: Evidence from the global automotive industry

Worldwide convergence of International Financial Reporting Standards (IFRS), ongoing since 2002, is a requirement if international comparability between publicly listed companies is to be ensured. Convergence is examined from the point of view of regulators, accountants, and users of financial information. For this purpose, data on 534 companies from the global automotive industry is used. This paper concludes that worldwide convergence is mostly being effective. Its triumph, however, varies depending on the set of accounting standards being compared to IFRS. Options within IFRS, national tax regulation, cultural differences, different company strategies and country resistance are found to hinder convergence.

Services growth and convergence: Getting India’s states together

India’s success story in services is well documented at the national level, but similar literature does not exist for India’s states. In this paper, we bridge this gap in research by looking at India’s services growth at the sub-national level and in doing so, also challenge existing literature by arguing that this growth has positive implications for income distribution. The first interesting finding is that even as per capita income is not converging across India’s states, per capita services are and we provide evidence for this both in terms of traditional measures of sigma- and beta-convergence and more recent panel unit root tests. Secondly, not only is external demand an important determinant of services value added at the state level, but this demand also emanates from all over the country rather than being concentrated in the neighbouring or richer states. This suggests that the benefits from services growth are being distributed more widely than may be perceived.

Evaluating tests for convergence of economic series using Monte Carlo methods with an application to real GDP's per head.

Doutoramento em Economia.

Convergence of gender roles in a globalized world: international comparison of family and gender roles

This paper examines emerging and changing gender roles in different regions of the world. Using data on 12 countries from last three ISSP Special Modules “Family and Changing Gender Roles” (1994, 2002 and 2012), we compare the evolution of gender roles about motherhood and fatherhood and its relation with the extension of women as breadwinners around the world: four Western Europe countries, representatives of different models of Welfare State (Germany, United Kingdom, Norway and Spain) plus United States, three former Soviet nations (Russia, Poland and Czech Republic), two Latin American countries (Chile and Mexico) and two Asian nations (Japan and Taiwan). Data show that family change (measured both in terms of attitudes and social practices) is spreading from Western contexts to other regions of the world, although the pace of this change varies from one country to another, depending on cultural, economic and political factors.

La régulation de l’économie numérique au Sénégal : la convergence des télécommunications et de l’audiovisuel

Établir une régulation de l’économie numérique au Sénégal représente un enjeu fondamental pour les gouvernants et l’ensemble des acteurs qui la compose. Suivant une démarche plus globalisée, d’énormes mutations normatives visant les rationalités et les mécanismes de réglementations ont évolué dans le temps donnant une place plus considérable au droit dans les politiques publiques des États. Différents modèles normatifs et institutionnels sont ainsi adaptés pour prendre en charge le phénomène de la convergence dépendamment du contexte réglementaire du pays. Pour ce qui est du contexte actuel du Sénégal, l’étanchéité des réglementations relatives aux télécommunications et à l’audiovisuel, désormais convergent, est fondée sur un modèle de réglementation sectorielle. Toutefois, leur convergence a provoqué un brouillage des frontières qui risque désormais de poser des conséquences énormes sur le plan normatif tel que des risques d’enchevêtrement sur le plan institutionnel ou réglementaire. Or au plan national, il n’existe à ce jour aucun texte visant à assoir les bases d’une régulation convergente. Ainsi, à la question de savoir si la régulation sectorielle est pertinente au regard de l’environnement du numérique marqué par la convergence, il s’est avéré qu’elle pourrait être adoptée comme modèle à court terme. Mais dans un but de réaliser des économies d’échelle pour réguler efficacement les différents secteurs et industries infrastructurelles, il faut un modèle de régulation unique marquée par la fusion de l’ARTP et du CNRA. D’une part, la régulation sectorielle permet d’accompagner la transition vers le numérique déjà lancée et d’autre part la régulation multisectorielle servira une fois la convergence des marchés établis.

BUILDING A DISCOURSE: BRIDGING THE GAP BETWEEN NEW MEDIA'S CONVERGENCE AND RHETORIC AND COMPOSITION'S MULTIMODALITY

My dissertation emphasizes the use of narrative structuralism and narrative theories about storytelling in order to build a discourse between the fields of New Media and Rhetoric and Composition. Propp's morphological analysis and the breaking down of stories into component pieces aides in the discussion of storytelling as it appears in and is mediated by digital and computer technologies. New Media and Rhetoric and Composition are aided by shared concerns for textual production and consumption. In using the notion of "kairotic reading" (KR), I show the interconnectedness and interdisciplinarity required in the development of pedagogy utilized to teach students to develop into reflective practitioners that are aware of their rhetorical surroundings and can made sound judgments concerning their own message generation and consumption in the workplace. KR is a transferable skill that is beneficial to students and teachers alike. The dissertation research utilizes theories of New Media and New Media-influenced practitioners, including Jenkins' theory of convergence, Bourdieu's notion of taste, Gee's term "semiotic domains," and Manovich's "modification." These theoretical pieces are combined in order to show how KR can be extended by convergent narrative practices. In order to build connections with New Media, the consideration and inclusion of Kress and van Leeuwen's multimodality, Selber's "reflective practitioners," and Selfe's definition of multimodal composing allow for a greater establishment of conversation order to create a richer conversation around the implications of metacognitive development and practitioner reflexivity with scholars in New Media. My research also includes analysis of two popular media franchises Deborah Harkness' A Discovery of Witches and Fox's Bones television series to show similarities and differences among convergence-linked and multimodal narratives. Lastly, I also provide example assignments that can be taken, further developed, and utilized in classrooms engaging in multimodal composing practices. This dissertation pushes consideration of New Media into the work already being performed by those in Rhetoric and Composition.

RATE OF CONVERGENCE OF MAXIMUM LIKELIHOOD ESTIMATORS UNDER RELAXED SMOOTHNESS CONDITIONS ON THE LIKELIHOOD FUNCTION

This report reviews literature on the rate of convergence of maximum likelihood estimators and establishes a Central Limit Theorem, which yields an O(1/sqrt(n)) rate of convergence of the maximum likelihood estimator under somewhat relaxed smoothness conditions. These conditions include the existence of a one-sided derivative in θ of the pdf, compared to up to three that are classically required. A verification through simulation is included in the end of the report.

La régulation de l’économie numérique au Sénégal : la convergence des télécommunications et de l’audiovisuel

Établir une régulation de l’économie numérique au Sénégal représente un enjeu fondamental pour les gouvernants et l’ensemble des acteurs qui la compose. Suivant une démarche plus globalisée, d’énormes mutations normatives visant les rationalités et les mécanismes de réglementations ont évolué dans le temps donnant une place plus considérable au droit dans les politiques publiques des États. Différents modèles normatifs et institutionnels sont ainsi adaptés pour prendre en charge le phénomène de la convergence dépendamment du contexte réglementaire du pays. Pour ce qui est du contexte actuel du Sénégal, l’étanchéité des réglementations relatives aux télécommunications et à l’audiovisuel, désormais convergent, est fondée sur un modèle de réglementation sectorielle. Toutefois, leur convergence a provoqué un brouillage des frontières qui risque désormais de poser des conséquences énormes sur le plan normatif tel que des risques d’enchevêtrement sur le plan institutionnel ou réglementaire. Or au plan national, il n’existe à ce jour aucun texte visant à assoir les bases d’une régulation convergente. Ainsi, à la question de savoir si la régulation sectorielle est pertinente au regard de l’environnement du numérique marqué par la convergence, il s’est avéré qu’elle pourrait être adoptée comme modèle à court terme. Mais dans un but de réaliser des économies d’échelle pour réguler efficacement les différents secteurs et industries infrastructurelles, il faut un modèle de régulation unique marquée par la fusion de l’ARTP et du CNRA. D’une part, la régulation sectorielle permet d’accompagner la transition vers le numérique déjà lancée et d’autre part la régulation multisectorielle servira une fois la convergence des marchés établis.

Variational mean-field approach to the double-exchange model

It has been recently shown that the double exchange Hamiltonian, with weak antiferromagnetic interactions, has a richer variety of first- and second-order transitions than previously anticipated, and that such transitions are consistent with the magnetic properties of manganites. Here we present a thorough discussion of the variational mean-field approach that leads to these results. We also show that the effect of the Berry phase turns out to be crucial to produce first-order paramagnetic-ferromagnetic transitions near half filling with transition temperatures compatible with the experimental situation. The computation relies on two crucial facts: the use of a mean-field ansatz that retains the complexity of a system of electrons with off-diagonal disorder, not fully taken into account by the mean-field techniques, and the small but significant antiferromagnetic superexchange interaction between the localized spins.

Does international trade produce convergence?

In spite of increasing globalization around the world, the effects of international trade on economic growth are not very clear. I consider an endogenous economic growth model in an open economy with the Home Market Effect (HME) and non-homothetic preferences in order to identify some determinants of the different results in this relationship. The model shows how trade between similar countries leads to convergence in economic growth when knowledge spillovers are present, while trade between very asymmetric countries produces divergence and may become trade in a poverty or growth trap. The results for welfare move in the same direction as economic growth since convergence implies increases in welfare for both countries, while divergence leads to increases in welfare for the largest country and the opposite for its commercial partner in the absence of knowledge spillovers. International trade does not implicate greater welfare as is usual in a static context under CES preferences.