7,595 research outputs found
Social Security and Retirement across OECD Countries
There are large differences in the employment to population ratio relative to the US across OECD countries, and these differences are even larger for the old age (55-69 years). There are also large differences in various features of social security, such as the replacement rate, the entitlement age or whether it is allowed to collect social security and working. These observations suggest that they might be an important factor. I assess quantitatively this hypothesis using a life cycle general equilibrium model of retirement. I find that the differences in social security can indeed account for the differences in employment to population ratio at old age in the OECD. I also evaluate which features of social security are most important in this context and find that generosity and whether it allows collecting social security while working are the most important contributors
Social Security and Retirement across OECD Countries
There are large differences in the employment to population ratio relative to the US across OECD countries, and these differences are even larger for the old age (55-69 years). There are also large differences in various features of social security, such as the replacement rate, the entitlement age or whether it is allowed to collect social security and working. These observations suggest that they might be an important factor. I assess quantitatively this hypothesis using a life cycle general equilibrium model of retirement. I find that the differences in social security can indeed account for the differences in employment to population ratio at old age in the OECD. I also evaluate which features of social security are most important in this context and find that generosity and whether it allows collecting social security while working are the most important contributors.Social security, retirement, idiosyncratic labor income risk
Social security and retirement across OECD countries
There are large differences in the employment to population ratio relative to the US across OECD countries, and these differences are even larger for the old age (55-69 years). There are also large differences in various features of social security, such as the replacement rate, the entitlement age or whether it is allowed to collect social security while working. These observations suggest that they might be an important contributing factor in accounting for differences in retirement. I assess quantitatively the importance of these features using a life cycle general equilibrium model of retirement. I find that the differences in social security account for 90% of the differences in employment to population ratio at ages 60-64 in the OECD. The differences in the replacement rates and whether the system allows for collecting social security while working are the most important contributing factors to account for the differences in retirement.Social security, retirement, idiosyncratic labor income risk
New Physics in : Interplay between semileptonic kaon and hyperon decays
We review a novel model-independent approach to the analysis of new-physics
effects in the transitions. We apply it to (semi)leptonic
kaon decays and study their complementarity with pion and hyperon
decays or with collider searches of new physics.Comment: Contribution to the NA62 Physics Handbook. It summarizes the analysis
presented in arXiv:1605.07114 and discusses in more detail the interplay
between and semileptonic hyperon decays as new-physics probe
Para no resignarse a la condena de la exclusión
Texto sobre el libro “Poder y desarrollo regional” de Xochitl Leyva. Se incluye obra visual del artista Alejandro Colunga, reproducida en blanco y negro.ITESO, A.C
Non-standard semileptonic hyperon decays
We investigate the discovery potential of semileptonic hyperon decays in
terms of searches of new physics at teraelectronvolt scales. These decays are
controlled by a small -flavor breaking parameter that allows for
systematic expansions and accurate predictions in terms of a reduced dependence
on hadronic form factors. We find that muonic modes are very sensitive to
non-standard scalar and tensor contributions and demonstrate that these could
provide a powerful synergy with direct searches of new physics at the LHC.Comment: v2. Comparison with direct searches of new physics at the LHC
presente
Análisis del comportamiento dinámico de vehículos comerciales ligeros y diseño de una metodología de ensayo
El presente proyecto tiene como objetivo estudiar las condiciones de carga reales de los
camiones comerciales ligeros en el mercado, con la finalidad de mejorar la definición de los
ensayos en pista de pruebas.
Se analiza la variabilidad del centro de gravedad en función de las características del
vehículo y de las configuraciones de carrozado que puede incorporar, para posteriormente
compararla con la posición prácticamente constante y poco elevada de los camiones que
son sometidos a ensayos.
Con los valores obtenidos en las dos situaciones de carga, se analiza la influencia en la
dinámica de frenado y la altura máxima del centro de masas del camión para evitar el
vuelco.
Dado el diferente comportamiento del camión en función de la altura del centro de gravedad,
se plantea diseñar y desarrollar un procedimiento de carga para realizar pruebas más
acordes con la metodología con la que se cargan los vehículos.
De esta manera se podrán ensayar en condiciones semejantes a la situación de un camión
en carretera y poder obtener resultados fiables de la estabilidad y de la dinámica de frenos
Advanced ceramic in structural engineering
The work deals with "Advanced Ceramics in Structural Engineering”. Throughout this
work we present the different types of ceramic that are currently in wider use, and the
main research lines that are being followed.
Ceramics have very interesting properties, both mechanical and electrical and refractory
where we can find some of the most interesting points of inquiry. Through this work we
try tounderstand this complex world, analyzing both general and specific properties of
differenttypes of advanced ceramics. It also discusses the advantages and disadvantages
of their use compared to other materials, and we will make some conclusions about all
the work.Ingeniería Industria
Development of a SW suite for Space Mission Analysis
The space industry is characterized by long term projects and low adaptability,
which usually leads to partial-failures and delays. Therefore, the existence of
a tool that minimizes these two issues would become inestimable for the sector.
The objective pursued throughout this bachelor thesis is the development of
a useful tool to enhance the initial phases of the current spacecraft mission design,
particularly focus on the preliminary mission analysis stage.
The problem was decided to be approached by implementing the traditional
models into a software suite looking for developing a fast, effective and easy to
handle interface.
The software suite developed has proven to accomplish the objective successfully
as demonstrated by noticeable improving the evaluation of possible alternatives
available for the FireSat mission.
Although the project was forced to be scaled according to the thesis restrictions
and hence the implications are in some extent limited, it has demonstrated
the potential of a future fully-scaled software development project and the impact
that it would have on the sector.Ingeniería Aeroespacia
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