Now a motivation has been this:
The introduction of internal savings of enterrprises was
a decisive advantage. Kalecki needed to combine this
element with another one-the marekt forces, or expansion
of effective demand. If he had retained the dependences
on hte role of profit, he would have ? , in a way,
the profit mass twice as an influence (See TED p. 103)
So he chose to ? the ? of profit role, which
represents the accelator.
I always was in favour of replacing this accelerator
by the influence of the degree of utilisation. This (Maturity+ Stagnation
                                                                                p.129, p.212)