R. Stenbacka, FINANCIAL STRUCTURE AND TACIT COLLUSION WITH REPEATED OLIGOPOLY COMPETITION, Journal of economic behavior & organization, 25(2), 1994, pp. 281-292
In this paper it is demonstrated how debt will reduce the ability of a
n oligopolistic industry to sustain tacit collusion in the context of
infinitely repeated Bertrand competition. This is due to the negative
incentive effect of debt according to which equity holders will find i
t profitable to deviate from collusive configurations at lower levels
of industry demand as the level of financial leverage increases. The o
ptimal financial structure of an oligopolistic industry depends on the
interplay between this negative incentive effect and the tax savings
effect (or other strategic effects) of debt financing relative to equi
ty financing.