The brute force solution seems to be use published redeemed winning ticket numbers to estimate sold ticket numbers? And then run expected value calculations of the unclaimed prizes vs the unsold tickets; if positive enough, go out and buy as many tickets as you can, process them and claim the winners (and enter any second chance drawings).
Of course, if people delay claimimg prizes, it makes the estimates inaccurate.
The brute force solution seems to be use published redeemed winning ticket numbers to estimate sold ticket numbers? And then run expected value calculations of the unclaimed prizes vs the unsold tickets; if positive enough, go out and buy as many tickets as you can, process them and claim the winners (and enter any second chance drawings).
Of course, if people delay claimimg prizes, it makes the estimates inaccurate.