Monte Carlo on Portfolio

For running a Monte Carlo on a portfolio project, you must first select which probability distributions should be active. These include the distributions defined in each model, an MC Controller for each model, and the distributions defined at the portfolio level.

The MC Controller for each project determines whether the probabilistic results saved in the results file will be used in this Monte Carlo run. If deactivated, Monte Carlo will ignore all the probabilities defined for that model and use the deterministic results instead.

All iterations are executed applying the economic model indicated in the Files Tab (Portfolio), and using the same Globals file.

Portfolio MC does not require all models to have been simulated with the same number of iterations as the portfolio MC run or between themselves. When active, the MC Controller takes iterations at random to perform its own iterations on the portfolio project. You can check how many iterations each project result file contains using the Browse results option (see Editing options in the Portfolio window).

You cannot run a MC simulation on Portfolio if you have two different projects with Excel outputs directed to files with the same name (in different folders). The reason is that MS Excel cannot have two different workbooks with the same name open at the same time, so it would try to close the first file to open the second one, but since the first file has been changed it would have to check if the changes have to be saved.