As I was listening to Hidden Brain, a podcast produced by NPR, this morning, a quote caught my attention, “[the reason why we regret acts of ommission as opposed to commision] is that the set of things we did yesterday is clearly finite [even for the most productive people in the world]. But the set of things we have missed out on [i.e., the opportunity cost] is certainly larger and possibly not finite.”
The first thing this brings to mind is work by Loomes and Sugden on regret theory. Still need to think a bit more about how this can connect to other areas of decision theory. Food for thought!