When are capital structure decisions nonseparable from production planning?

Kim Kaivanto and Alan Zinober

No 96496260, Working Papers from Lancaster University Management School, Economics Department

Abstract: The well-known result that capital structure is irrelevant for firm value follows from a set of assumptions conducive to theoretical analysis. In this note we explore the implications of relaxing one of these assumptions: the independence of cash flows from capital structure. Unlike debt and equity, funding that is accompanied by a royalty payment obligation has the effect of increasing marginal cost, to which a profit-maximizing firm responds by reducing output, violating the independence assumption. We study the effect on optimal production plans of generalized royalty payment obligations in which the royalty rate need not be constant across partitions of cumulative output, resulting in piece-wise linear cumulative royalty schedules that are not everywhere differentiable. The associated optimization problem for intertemporal production planning is nonstandard as it is not time separable. Here we solve this nonstandard problem by formulating an equivalent problem that in turn can be solved by the Pontryagin Maximum Principle using numerical techniques. When generalized royalty-based finance is included in the financing mix, the optimal production plan is non-trivially related to capital structure and capital structure is relevant to firm value. Unless the financing mix is restricted to debt and equity, financing decisions and production planning decisions cannot be undertaken independently in general.

Keywords: production planning; capital structure; separability; Pontryagin Maximum Princi- ple; numerical methods; royalty-based finance; hybrid instruments (search for similar items in EconPapers)
JEL-codes: G32 (search for similar items in EconPapers)
Date: 2015
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