The objective of this paper is to analyse the linkage between internal fina
nce and inventory investment, using a large panel of UK manufacturing firms
from 1968 to 1991. Firms are classified into two groups: those more and th
ose less likely to face financial constraints. The estimates of several equ
ations for inventory growth augmented with the coverage ratio indicate a si
gnificant effect of the latter on inventory investment for the former group
, during periods of recession and tight monetary policy. This effect is par
ticularly strong for work-in-process and raw material inventories which are
characterized by low adjustment costs.