Consequences of the choice of c

If $c$ is chosen too large, the currency will "devalue" too quickly, which harms its function as a store of value. If, on the contrary, $c$ is chosen too small, the currency will be scarce in the economy, which widens inequality. To tell whether a value is "too high" or "too low", the RTM relies on the life expectancy $\text{ev}$ of the individual and gives two extreme values for $c$; see the detailed article on the subject (in French). The idea has been taken up elsewhere, reaching similar conclusions.

The value of $c$ is easier to grasp when expressed as an annual money creation rate $\tau = e^{c\times1\text{ year}} - 1$. The limit values proposed by the RTM are 2.2% (lower bound) and 14.3% (upper bound).