The alternative hypothesis has different implications, even though it is formally identical to its original formulation. A permanent reduction in the Cash conversion cycle , without changes in the operating margin or sales dynamics, frees up cash equal to ΔOperation working capital = ΔCash conversion cycle ∗Revenues in the first period. More importantly, it also diminishes the need for future investments in working capital as sales grow. Here, we assume a constant growth in sales, g, to simplify the exposition.