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…

The detrimental effects of Phomopsis spp. on seed germination of soybean [Glycine max (L.) Merrill] are broadly recognized. Rolled paper toweling is the most widely used method for testing germination of soybean seed. The validity of the rolled-paper-towel test to…

Seventy-three seed samples of 23 soybean [Glycine max (L.) Merr.] cultivars produced in Florida in 1986 were analyzed for germination, vigor [tetrazolium (TZ) test], and presence of seedborne pathogens. Thirty percent of the samples contained from 5 to 20% (high)…

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…