[Solved] Generate monotonic stochastic process

Hello all,

I am interested in generating a monotonic stochastic process in Mathematica, both decreasing or increasing, starting from a given initial value. It should be discrete in time and continuous in space.

I want to generate something similar to this:

Any idea how can this be done using Mathematica?

Thank you in advance for any help!

Like this?

monoStochProc[init_, window_, n_] := NestList[RandomReal[{# window, #}] &, init, n]

ListLogPlot[monoStochProc[10^11, 0.7, 59], Joined -> True, Mesh -> All, Filling -> Axis, Frame -> True]

Thank you for your answer!

Yes, that is what I wanted. It didn’t come to mind