This paper considers evidence from the Labour Force Survey concerning
job search by employed workers. The unconditional probability of obser
ving on-the-job search is decomposed into the product of two constitue
nt probabilities upon which maximum likelihood estimation is performed
. The analysis facilitates the identification of who searches and whet
her search takes place in work or from unemployment. Temporary or part
-time employment encourages continued search by men but not women. Ski
lled workers search more than the unskilled and demonstrate a preferen
ce for employed search. Inter-industry wage relativities encourage sea
rch on-the-job. Job tenure is a significant determinant of the quality
of a job match and the subsequent likelihood that on-the-job search i
s undertaken. Employed job seekers adopt search strategies that are mo
re readily integrated into a working environment.