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200 years of Gompertz

Today is the 200th anniversary of Benjamin Gompertz's reading of his famous paper before the Royal Society of London.  Generations of actuaries and demographers are familiar with his law of mortality:

\[\mu_x = e^{\alpha+\beta x}\qquad(1),\]

Written by: Stephen RichardsTags: Filter information matrix by tag: Gompertz, Filter information matrix by tag: hazard function, Filter information matrix by tag: survival probability, Filter information matrix by tag: survival models

Lost in translation (reprise)

Late last year I drew up a table of actuarial terms and their translation for statisticians.  I had thought that it was a uniquely actuarial trait to use different names compared to other disciplines.  It turns out that statisticians are almost as guilty.
Written by: Stephen RichardsTags: Filter information matrix by tag: hazard function, Filter information matrix by tag: information matrix, Filter information matrix by tag: score function, Filter information matrix by tag: log-likelihood