http://clszzn47y57uwkrgnfc7wllalvodopzqrp4spb6zbz2t3ulxngcfqsad.onion/index.php?action=resource_RESOURCEVIEW_CORE&id=79&browserTabID=
In our model, n miners compete for a prize of fixed size. Each miner chooses an investment q_i, incurring cost c_i q_i, and then receives reward (q_i^alpha)/(sum_j q_j^alpha), for some alpha >= 1. When c_i = c_j for all i,j, and alpha = 1, there is a unique equilibrium where all miners invest equally.