id: 06088878
dt: j
an: 1248.90012
au: Li, Qing; Yu, Peiwen
ti: Technical note-on the quasiconcavity of lost-sales inventory models with
    fixed costs.
so: Oper. Res. 60, No. 2, 286-291 (2012).
py: 2012
pu: INFORMS, Hanover, MD
la: EN
cc: 90B05
ut: periodic-review inventory systems; fixed costs; optimal policies;
    quasiconcavity
ci: 
li: doi:10.1287/opre.1110.1034
ab: Summary: We show that under a set of conditions, both the maximal profit
    function and the objective function in several lost-sales inventory
    models with fixed costs are quasiconcave. Not only is the
    quasiconcavity property useful computationally, it also leads to a
    sharper characterization of the optimal policies. Neither the proof of
    the quasiconcavity property itself nor the proof of the optimal
    policies by using the property requires the machinery of $K$-concavity
    or any of its $K$-related extensions, and hence they are intuitively
    appealing.
rv: