Note—Two Comments on the Deterministic Capacity Problem

Giglio's paper [Giglio, R. J. 1973. A note on the deterministic capacity problem. Management Sci.19 (9, May).] on capacity expansion and its primary reference [Srinivasan, T. N. 1967. Geometric rate of growth of demand. A. S. Manne, ed. Investments for Capacity Expansion. MIT Press, 150–156.] overlook a relevant earlier result of Sinden [Sinden, F. W. 1960. The replacement and expansion of durable equipment. J. Soc. Indus. Appl. Math.8 (September) 466–480.]. All three papers model a situation in which demand g(t) is increasing in t and must, for all t, be accommodated by prior installation(s) of capacity.