Ventana software support forum

Thanks very much Bob. There are laods of other things I want to build into it, because as you say there aren't any feedback loops at the moment. I'll check out those links.

I've rejigged version 9 and created version 11...

Cheers Bob, I've added the little "brand bolt on" bit onto my main model and applied it to one of the many media's which contributes to the brand effectiveness. The model "IS OK" according to Vensim which was frankly a surprise to me! There are loads of unit errors which I haven'...

Forum froze on me, let's try again....

I've put the following into a mini model: "brand awareness = INTEG(bulding awareness - awareness decay) ~ Thought/Day awareness decay = brand awareness/decay time ~ Thought/Day/Year building awareness = advertising spending * advertising effectiveness ~ Though/Day/Year" I've attached the m...

Would it be possible to use the model on page 58 of this document? :

http://www.agsm.edu.au/~bobm/teaching/SSS/VENPLE.PDF

Thanks again guys. I'll mull it over and see if I can incorporate it into the model. The idea of decay appeals as it makes the model a lot more realistic as you have to continually be advertising to compete for people's mental "consideration space"; especially in such a competitive and cro...

OK, I've added another bit onto the model introducing the various means by which new business policies are generated. The basic theory behind this part is that things like BRTV (brand TV), DRTV (direct response TV), doordrops, DM etc are all channels through which new business can be generated. Any ...

Splendid, every day's a school day! Thanks Lee.

Cheers Bob. Synthesim now seems to make more sense when I flex the "current retention". I do, however, get this error on doing a model check: "-policies lapsing- is not used in the model". It still works though!

Hi guys and happy new year. I'm back from the Christmas break now and have been re-familiarising myself with my model. Having looked at it and read the replies above I can respond to comments and amendments made. malli: I can't download the amended model you did for me. It won't open in Vensim for s...

Thanks so much malli; I'll have a look later today.

This is what I've come up with (see attached). Can't get my head around the errors on the units check though. Thanks

Thanks Bob- I'll redesign the model with this in mind. One thing is the "exponential distribution of policy lengths" - I'm not sure what you mean here. An insurance policy lasts for 12 months so I suppose the thinking with the current model was trying to simulate a delay or policy holder &...

Hi guys First up a brief intro - I work for Churchill Insurance company in the UK in the marketing team. I do customer insight research and a spot of analysis. I'm building a model after having been to the Vensim intensive course a few weeks ago. I'm trying to model the insurance market in relation ...