... All of these, except forprofessional services, contributed positively both to the sectoral shift inself-employment and the class shift. At the other end of the spectrum, 11 of the 12 sectors ... levels of codi®ed knowledge), isnevertheless closely linked to the expansion of the post-industrial sectors of the economy since those sectors have contributed heavily to the expansion of female ... the decomposition of these effectson self-employment, the picture becomes somewhat more complex. Inboth the 1970s and the 1980s, the detailed sectors of the economy withinwhich there was the...