51,079 research outputs found
The subgroup growth spectrum of virtually free groups
For a finitely generated group denote by the growth
coefficient of , that is, the infimum over all real numbers such
that . We show that the growth coefficient of a virtually
free group is always rational, and that every rational number occurs as growth
coefficient of some virtually free group. Moreover, we describe an algorithm to
compute
Endogenous Preemption on Both Sides of a Market
We study a market in which both buyers and sellers can decide to preempt and set their quantities before market clearing.Will this lead to preemption on both sides of the market, only one side of the market, or to no preemption at all?We find that preemption tends to be asymmetric in the sense that it is restricted to only one side of the market (buyers or sellers).preemption;endogenous timing
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