摘要：We examine the relationships between productivity growth, IT investment and
organisational change (∆O) using UK firm data. Consistent with the small number
of other micro studies we find (a) IT appears to have high returns in a growth
accounting sense when ∆O is omitted; when ∆O is included the IT returns are
greatly reduced, (b) IT and ∆O interact in their effect on productivity growth,
(c) non-IT investment and ∆O do not interact in their effect on productivity
growth. Some new findings are (a) ∆O is affected by competition; (b) US-owned
firms are much more likely to introduce ∆O relative to foreign owned firms who
are more likely still relative to UK firms; (c) our predicted measured TFP
growth slowdown for firms who are not doing ∆O and/or are in the early stages of
IT investment compare well with the macro numbers documenting a UK measured TFP
growth slowdown
