Intuition tells us that coaches of professional sports teams should have their most productive players play the most frequently. However, sports economics research suggests that this is not always the case. Specifically, researchers find that coaches tend to have their most expensive players play most frequenty, even when those players are not the most productive. The researchers argue that coaches behave this way because they are justifying the team's investment in the expensive players. The behavior of coaches described above illustrates _____ in human decision making