Are constraints possible on Monte Carlo models in Add ons (@Risk CB etc.)

restr

New Member
Joined
Jul 15, 2014
Messages
1
Hi,

I was looking to perhaps start using a Monte Carlo package to help during investment appraisal again; I have not used one for years. I have downloaded a few trial versions of the well known ones including the ones above. However, I am not sure any of them will do one of the things I want to do, of course I could just be being stupid...

Can anyone please tell if if the following is possible using any of the packages? Thanks.

An example would be that I want to do a basic NPV calculation for an apartment development, so one of the key variables to define will be selling price and possible sales price growth and this is not a problem. The second is the number of sales per month, so lets assume that there are 20 apartments and in the very worst case they will all be sold in 24 months. I can define sales in each of the last 18 months to be between 0 and 3 (tri. dist.); however, I also need the total sales in each simulation run to be constrained to be equal to 20 each time. Is this possible?

I know that these packages have other optimizers where you can run LP based solutions for problems containing constraints etc. but you can not seem to combine these into a Monte Carlo run.
 

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