Suggestions:
Consider creating an alt-coin specifically for ActM shares.
I think colored coins could offer a better solution but the above suggestion may be possible.
With the assumptions that:1 Merged mining does not cost any thing extra to asic miners. IX Coin and Name coin are well protected from 51% attacks on Merged mining .
2Miners won't drop coins if their value drops close to 0 for a long periods of time.
3Able to get enough pools to support it at it's on set.
4Coordination between companies and Pools is very easy to be able to issue new coins.
Incentive for miners would be small transaction fees (bits of active mining shares) from the buying and selling of active mining coins
These shares will have value while also offering a dividend.
While these may seem minuscule, Providing assumptions
1,2,3 and 4 are true, its possible to reach a point where if enough companies issued their stocks like this, the incentive for miners will be satisfied, as miners would slowly be acquiring a nice little portfolio of stocks for no extra cost.
However, Security may not be as good as what colored coins/master coin are proposing
Which is more cost efficient for companies? I'm unsure in this regard, how many master coin, or how much of a master coin do you need to issue a stock.
Would colored coins be able to do all this for free including zero transaction fees for buying and selling?
Colored coins also seems much more decentralized as step 4 above would be giving even more power to the pools.
Colored coins proposed decentralized exchange is very appealing.