I cannot answer your question as to why Australian insto's would not want to back MON. But they dont.
The banks are another story as that is debt, not equity. their lending criteria may require some delivery on previous promises before handing over huge chunks of debt, and to be honest, production ramp ups are not a good time to have debt (remember Gleneagle as a case in point).
I think going to the TSX answers your question in a manner - MON did not think they would get funding here.
Asset valuations - that is human nature, when cerdit is easy (i.e cheap debt and limitless equity) people are prepared to pay more for an asset as the yield does not have to be as high. When the price of paying for something goes up, the realised price goes down. A case in point is real estate. Price of finance goes up, the price goes down. Buying decommissioned gold assets which require significant capital for restart are just the same. Can you imagine people would pay exactly the same for any share, asset, widget today as they did in October?
I hope this helps
MON Price at posting:
0.0¢ Sentiment: Sell Disclosure: Not Held