The Radio Canada International news and current affairs program "Canadian Journal" is used as a case study to develop an adequate theory of news work. A theory of news structuration is proposed which seeks to overcome the dichotomy between agency…

This paper assesses the ability of a simple search—theoretic
model to explain the results of two controlled reemployment bonus
experiments. The availability of two independent experiments
with substantially different treatments allows for a rigorous
test of the model. Parameters of…

This paper uses aggregate birth year/calendar year level data derived
from the Current Population Survey (CPS) to estimate the effect of Social
Security wealth on the labor supply of older men in the l970s and 1980s.
The analysis focuses on…

Two approaches to estimation and testing of fixed effects models are
commonly found in the econometrics literature. The first involves variations on
instrumental variables. The second, a Minimum Chi-Square (MCS) procedure
introduced by Chamberlain, minimizes a quadratic form in the…

Veterans of World War II are widely believed to earn more than
nonveterans of the same age. Theoretical justifications for the World War
II veteran premium include the subsidization of education and training, and
preference for veterans in hiring. In…

In this paper we provide theoretical and empirical analyses of an
asymmetric-information model of layoffs in which the current employer is
better informed about its workers’ abilities than prospective employers
are. The key feature of the model is that when…

Modeling "hydrodynamic phase transitions" in a radiating spherically symmetric distribution of matter


(Herrera, L.; Núñez, Luis)


Abstract


A method recently proposed by the authors to study the evolution of discontinuities in radiating spherically symmetric…

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