Description Usage Arguments Details Value References See Also Examples
edcdf
is a function to graph the CDF of time of schooling for any group of
countries using the set of estimates developed in Jorda and Alonso (2017).
1  edcdf(countries, init.y, final.y, database)

countries 
character vector with the country codes of the countries
to be used. Some macroregions are already defined and can be used
instead of the country codes: 
init.y 
the first year in which the function is calculated. Available years are 1970, 1975, 1980, 1985, 1990, 1995, 2000, 2005, 2010. 
final.y 
the last year in which the function is calculated Available years are 1970, 1975, 1980, 1985, 1990, 1995, 2000, 2005, 2010. 
database 
population subgrup for which the function is calculated. The following options are available:

We use the set of estimates developed in Jorda and Alonso (2017), where the generalized gamma distribution (Stacy, 1962) is used to model the time that individuals attend school until they complete the educational cycle or decide to drop out. The reason is twofold; first, the generalized gamma distribution is a parsimonious model that nests most of the parametric assumptions described in the literature (see, Marshall and Olkin, 2007). Second, the generalized gamma distribution is able to model one and zeromode distributions and to represent several types of hazard rates.The flexibility of this model to consider such heterogeneity, makes it an outstanding candidate to model the distribution of education. It is important to highlight that this parametric model includes as particular cases most of the distributions commonly used in survival analysis, including the Weibull, the exponential, and the gamma distributions, so it would converge to any of its special cases if needed.
To accommodate time and country varying parameters, the distribution of education of each country and year is estimated by nonlinear least squares (see, Jorda and Alonso (2017) for further description on the estimation strategy).The distribution of education of a particular group or region of countries is simply defined as a mixture of the national distributions, weighted by their population shares.
edcdf
returns a graph of the evolution of the CDF of education
over the specified period.
Jorda, V. and Alonso, J.M. (2017). New estimates on educational attainment using a continuous approach (19702010), World Development, 90, 281  293. http://www.sciencedirect.com/science/article/pii/S0305750X16305010
Marshall, A. W. and Olkin, I. (2007). Life distributions. Structure of nonparametric, semiparametric, and parametric families. New York: Springer.
Stacy, E. W. (1962). A generalization of the gamma distribution. Annals of Mathematical Statistics, 33, 1187  1192.
GenGamma.orig
, data_country
.
Visit http://www.educationdata.unican.esfor more information on
the constructoin of the dataset and the available
countries.
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