Prices don't simply say shovels are best. Economic theory says that under some ideal conditions, prices reflect what is most efficient, and that whats most effi

Prices don't simply say shovels are best. Economic theory says that under some ideal conditions, prices reflect what is most efficient, and that whats most efficient is best. That is, your argument is more an assumption that ideal economic models apply than a justification. Ideal economics don't always apply, prices aren't always transparent, competition isn't always perfect, cows aren't spherical.