(For the record, I myself am neither an evidential decision theorist, nor a causal decision theorist in the current sense. My view is not easily summarized, but it is reflectively consistent without need of precommitment or similar dodges; my agents see no need to modify their own source code or invoke abnormal decision procedures on Newcomblike problems.)
Newcomb’s Problem standard positions
Marion Ledwig’s dissertation summarizes much of the existing thinking that’s gone into Newcomb’s Problem.
(For the record, I myself am neither an evidential decision theorist, nor a causal decision theorist in the current sense. My view is not easily summarized, but it is reflectively consistent without need of precommitment or similar dodges; my agents see no need to modify their own source code or invoke abnormal decision procedures on Newcomblike problems.)